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physic</title> <meta name="description" content="Search results for: physic"> <meta name="keywords" content="physic"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" 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class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="physic"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 52</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: physic</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">52</span> Effect of Organic and Inorganic Fertilizers on the Growth and Yield of Physic Nut (Jatropha curcas)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Oliver%20Echezona%20Ngwu">Oliver Echezona Ngwu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The research was conducted in 2011 cropping season at the Teaching and Research farm of the Faculty of Agriculture and Natural Resources Management, Enugu State University of Science and Technology, Enugu, Nigeria to study the effect of organic and inorganic fertilizers on the growth and yield of physic Nut (Jatropha curcas). There were five treatments namely, control, (no application of treatment), NPK 20:10:10, NPK 15:15;15, poultry droppings and goat dung. The treatments were laid out in a Randomized complete Block Design (RCBD) with five replications. The total land area used was 228m2 (19x12m) while the plot size was 3mx2 (6m2). The growth parameters measured were plant height, number of leaves, and leaf area, index (LAI). The results obtained showed that there were significant differences at P=0.05 among the different treatments in 30, to and 90 DAP. Based on the results T4 (poultry droppings) had higher effect at P=0.05 at 30, 60, 90 DAP than the other treatments when compared and is hereby recommended as the best type of fertilizer for the optimum growth and production of physic Nut (Jatropha Curcas) in South Eastern Nigeria. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=organic" title="organic">organic</a>, <a href="https://publications.waset.org/abstracts/search?q=inorganic%20fertilizers" title=" inorganic fertilizers"> inorganic fertilizers</a>, <a href="https://publications.waset.org/abstracts/search?q=growth" title=" growth"> growth</a>, <a href="https://publications.waset.org/abstracts/search?q=yield" title=" yield"> yield</a>, <a href="https://publications.waset.org/abstracts/search?q=Jatropha%20curcas" title=" Jatropha curcas"> Jatropha curcas</a> </p> <a href="https://publications.waset.org/abstracts/43908/effect-of-organic-and-inorganic-fertilizers-on-the-growth-and-yield-of-physic-nut-jatropha-curcas" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43908.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">284</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">51</span> A New Analytic Solution for the Heat Conduction with Time-Dependent Heat Transfer Coefficient</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Te%20Wen%20Tu">Te Wen Tu</a>, <a href="https://publications.waset.org/abstracts/search?q=Sen%20Yung%20Lee"> Sen Yung Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An alternative approach is proposed to develop the analytic solution for one dimensional heat conduction with one mixed type boundary condition and general time-dependent heat transfer coefficient. In this study, the physic meaning of the solution procedure is revealed. It is shown that the shifting function takes the physic meaning of the reciprocal of Biot function in the initial time. Numerical results show the accuracy of this study. Comparing with those given in the existing literature, the difference is less than 0.3%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=analytic%20solution" title="analytic solution">analytic solution</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer%20coefficient" title=" heat transfer coefficient"> heat transfer coefficient</a>, <a href="https://publications.waset.org/abstracts/search?q=shifting%20function%20method" title=" shifting function method"> shifting function method</a>, <a href="https://publications.waset.org/abstracts/search?q=time-dependent%20boundary%20condition" title=" time-dependent boundary condition"> time-dependent boundary condition</a> </p> <a href="https://publications.waset.org/abstracts/7436/a-new-analytic-solution-for-the-heat-conduction-with-time-dependent-heat-transfer-coefficient" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7436.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">431</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">50</span> Effects of Water Content on Dielectric Properties of Mineral Transformer Oil</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Suwarno">Suwarno</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Helmi%20Prakoso"> M. Helmi Prakoso</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mineral oil is commonly used for high voltage transformer insulation. The insulation quality of mineral oil is affecting the operation process of high voltage transformer. There are many contaminations which could decrease the insulation quality of mineral oil. One of them is water. This research talks about the effect of water content on dielectric properties, physic properties, and partial discharge pattern on mineral oil. Samples were varied with 10 varieties of water content value. And then all samples were tested to measure the dielectric properties, physic properties, and partial discharge pattern. The result of this research showed that an increment of water content value would decrease the insulation quality of mineral oil. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dielectric%20properties" title="dielectric properties">dielectric properties</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20voltage%20transformer" title=" high voltage transformer"> high voltage transformer</a>, <a href="https://publications.waset.org/abstracts/search?q=mineral%20oil" title=" mineral oil"> mineral oil</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20content" title=" water content"> water content</a> </p> <a href="https://publications.waset.org/abstracts/36856/effects-of-water-content-on-dielectric-properties-of-mineral-transformer-oil" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36856.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">399</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">49</span> Monte Carlo Simulation of Pion Particles </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reza%20Reiazi">Reza Reiazi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Attempts to verify Geant4 hadronic physic to transport antiproton beam using standard physics list have not reach to a reasonable results because of lack of reliable cross section data or non reliable model to predict the final states of annihilated particles. Since most of the antiproton annihilation energy is carried away by recoiling nuclear fragments which are result of pions interactions with surrounding nucleons, it should be investigated if the toolkit verified for pions. Geant4 version 9.4.6.p01 was used. Dose calculation was done using 700 MeV pions hitting a water tank applying standards physic lists. We conclude Geant4 standard physics lists to predict the depth dose of Pion minus beam is not same for all investigated models. Since the nuclear fragments will deposit their energy in a small distance, they are the most important source of dose deposition in the annihilation vertex of antiproton beams. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Monte%20Carlo" title="Monte Carlo">Monte Carlo</a>, <a href="https://publications.waset.org/abstracts/search?q=Pion" title=" Pion"> Pion</a>, <a href="https://publications.waset.org/abstracts/search?q=simulation" title=" simulation"> simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=antiproton%20beam" title=" antiproton beam"> antiproton beam</a> </p> <a href="https://publications.waset.org/abstracts/18818/monte-carlo-simulation-of-pion-particles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18818.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">431</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">48</span> On Physico-Chemical Status of Agbabu Water, Oluwa River, Odigbo Local Government Area, Ondo State, Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Olaniyan%20Rotimi%20Francis">Olaniyan Rotimi Francis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Agbabu Water, Oluwa River is used for artisanal fishing, ferrying and domestic activities in Odigbo Local Government Area (OLGA), Ondo State. The river receives bitumen spills and domestic and agricultural wastes, which could adversely impact on the water quality and resident biota. In spite of anthropogenic activities, there is a dearth of information on the limnology and biota of the river. Extensive bitumen spills, as well as uncontrolled discharge of domestic wastes have pollution implications as they alter prevailing conditions and destroy the habitats of aquatic organisms. The aim of this study was to investigate the physic-chemical parameters of Agbabu Water in order to provide baseline information for effective management. Monthly water samples were collected on the surface of Agbabu water, Oluwa River, for a period of 6 months (June,2024 to November,2024). All physic-chemicals were collected and analyzed according to APHA (2005) standard methods. Results showed that temperature ranged between 26.0-32.0oC, transparency (1.0-8.0 m), alkalinity (14.0-25.0 mg/l), electrical conductivity (18-105 µS/cm), dissolved oxygen (1.2-3.8 mg/l), sulphate (0.0 -4.0mg/l) and total dissolved solids (18-36). The parameters at the downstream (station A) accounted for the bulk of the highest values; there were, however, no significant differences between the stations at P<0.05. The results obtained from the physic-chemical parameters agree with the limits set by both national and international bodies for drinking and fish growth. It was recommended that urgent checks and monitoring by relevant agencies, government representatives, public health practitioners, and community leaders are required. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=physico-chemical" title="physico-chemical">physico-chemical</a>, <a href="https://publications.waset.org/abstracts/search?q=water" title=" water"> water</a>, <a href="https://publications.waset.org/abstracts/search?q=Agbabu" title=" Agbabu"> Agbabu</a>, <a href="https://publications.waset.org/abstracts/search?q=River" title=" River"> River</a> </p> <a href="https://publications.waset.org/abstracts/195402/on-physico-chemical-status-of-agbabu-water-oluwa-river-odigbo-local-government-area-ondo-state-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/195402.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">6</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">47</span> On Physico-Chemical Status of Agbabu Water, Oluwa River, Odigbo Local Government Area, Ondo State, Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Olaniyan%20Rotimi%20Francis">Olaniyan Rotimi Francis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Agbabu Water, Oluwa River is used for artisanal fishing, ferrying and domestic activities in Odigbo Local Government Area (OLGA), Ondo State. The river receives bitumen spills and domestic and agricultural wastes, which could adversely impact on the water quality and resident biota. In spite of anthropogenic activities, there is a dearth of information on the limnology and biota of the river. Extensive bitumen spills, as well as uncontrolled discharge of domestic wastes, have pollution implications as they alter prevailing conditions and destroy the habitats of aquatic organisms. The aim of this study was to investigate the physic-chemical parameters of Agbabu Water in order to provide baseline information for effective management. Monthly water samples were collected on the surface of Agbabu water, Oluwa River, for a period of 6 months (June 2024 to November 2024). All physic-chemicals were collected and analyzed according to APHA(2005)standard methods. Results showed that temperature ranged between 26.0-32.0oC, transparency (1.0-8.0 m), alkalinity (14.0-25.0 mg/l), electrical conductivity (18-105 µS/cm), dissolved oxygen (1.2-3.8 mg/l), sulphate (0.0 -4.0mg/l) and total dissolved solids (18-36). The parameters at the downstream (station A) accounted for the bulk of the highest values; there were, however, no significant differences between the stations at P<0.05. The results obtained from the physic-chemical parameters agree with the limits set by both national and international bodies for drinking and fish growth. It was recommended that urgent checks and monitoring by relevant agencies, government representatives, public health practitioners, and community leaders be required. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=agbabu%20water" title="agbabu water">agbabu water</a>, <a href="https://publications.waset.org/abstracts/search?q=dynamics" title=" dynamics"> dynamics</a>, <a href="https://publications.waset.org/abstracts/search?q=physico-chemical" title=" physico-chemical"> physico-chemical</a>, <a href="https://publications.waset.org/abstracts/search?q=river" title=" river"> river</a> </p> <a href="https://publications.waset.org/abstracts/195884/on-physico-chemical-status-of-agbabu-water-oluwa-river-odigbo-local-government-area-ondo-state-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/195884.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">4</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">46</span> Land Suitability Analysis for Maize Production in Egbeda Local Government Area of Oyo State Using GIS Techniques</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abegunde%20Linda">Abegunde Linda</a>, <a href="https://publications.waset.org/abstracts/search?q=Adedeji%20Oluwatayo"> Adedeji Oluwatayo</a>, <a href="https://publications.waset.org/abstracts/search?q=Tope-Ajayi%20Opeyemi"> Tope-Ajayi Opeyemi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Maize constitutes a major agrarian production for use by the vast population but despite its economic importance, it has not been produced to meet the economic needs of the country. Achieving optimum yield in maize can meaningfully be supported by land suitability analysis in order to guarantee self-sufficiency for future production optimization. This study examines land suitability for maize production through the analysis of the physic-chemical variations in soil properties over space using a Geographic Information System (GIS) framework. Physic-chemical parameters of importance selected include slope, landuse, and physical and chemical properties of the soil. Landsat imagery was used to categorize the landuse, Shuttle Radar Topographic Mapping (SRTM) generated the slope and soil samples were analyzed for its physical and chemical components. Suitability was categorized into highly, moderately and marginally suitable based on Food and Agricultural Organisation (FAO) classification using the Analytical Hierarchy Process (AHP) technique of GIS. This result can be used by small scale farmers for efficient decision making in the allocation of land for maize production. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=AHP" title="AHP">AHP</a>, <a href="https://publications.waset.org/abstracts/search?q=GIS" title=" GIS"> GIS</a>, <a href="https://publications.waset.org/abstracts/search?q=MCE" title=" MCE"> MCE</a>, <a href="https://publications.waset.org/abstracts/search?q=suitability" title=" suitability"> suitability</a>, <a href="https://publications.waset.org/abstracts/search?q=Zea%20mays" title=" Zea mays"> Zea mays</a> </p> <a href="https://publications.waset.org/abstracts/22376/land-suitability-analysis-for-maize-production-in-egbeda-local-government-area-of-oyo-state-using-gis-techniques" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22376.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">396</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">45</span> Characterization of Brewery Wastewater Composition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abimbola%20M.%20Enitan">Abimbola M. Enitan</a>, <a href="https://publications.waset.org/abstracts/search?q=Josiah%20Adeyemo"> Josiah Adeyemo</a>, <a href="https://publications.waset.org/abstracts/search?q=Sheena%20Kumari"> Sheena Kumari</a>, <a href="https://publications.waset.org/abstracts/search?q=Feroz%20M.%20Swalaha"> Feroz M. Swalaha</a>, <a href="https://publications.waset.org/abstracts/search?q=Faizal%20Bux"> Faizal Bux</a> </p> <p class="card-text"><strong>Abstract:</strong></p> With the competing demand on water resources and water reuse, discharge of industrial effluents into the aquatic environment has become an important issue. Much attention has been placed on the impact of industrial wastewater on water bodies worldwide due to the accumulation of organic and inorganic matter in the receiving water bodies. The scope of the present work is to assess the physic-chemical composition of the wastewater produced from one of the brewery industry in South Africa. This is to estimate the environmental impact of its discharge into the receiving water bodies or the municipal treatment plant. The parameters monitored for the quantitative analysis of brewery wastewater include biological oxygen demand (BOD5), chemical oxygen demand (COD), total suspended solids, volatile suspended solids, ammonia, total oxidized nitrogen, nitrate, nitrite, phosphorus, and alkalinity content. In average, the COD concentration of the brewery effluent was 5340.97 mg/l with average pH values of 4.0 to 6.7. The BOD and the solids content of the wastewater from the brewery industry were high. This means that the effluent is very rich in organic content and its discharge into the water bodies or the municipal treatment plant could cause environmental pollution or damage the treatment plant. In addition, there were variations in the wastewater composition throughout the monitoring period. This might be as a result of different activities that take place during the production process, as well as the effects of the peak period of beer production on the water usage. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Brewery%20wastewater" title="Brewery wastewater">Brewery wastewater</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20pollution" title=" environmental pollution"> environmental pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=industrial%20effluents" title=" industrial effluents"> industrial effluents</a>, <a href="https://publications.waset.org/abstracts/search?q=physic-chemical%20composition" title=" physic-chemical composition"> physic-chemical composition</a> </p> <a href="https://publications.waset.org/abstracts/33988/characterization-of-brewery-wastewater-composition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33988.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">453</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">44</span> Determination of the Axial-Vector from an Extended Linear Sigma Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tarek%20Sayed%20Taha%20Ali">Tarek Sayed Taha Ali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The dependence of the axial-vector coupling constant gA on the quark masses has been investigated in the frame work of the extended linear sigma model. The field equations have been solved in the mean-field approximation. Our study shows a better fitting to the experimental data compared with the existing models. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=extended%20linear%20sigma%20model" title="extended linear sigma model">extended linear sigma model</a>, <a href="https://publications.waset.org/abstracts/search?q=nucleon%20properties" title=" nucleon properties"> nucleon properties</a>, <a href="https://publications.waset.org/abstracts/search?q=axial%20coupling%20constant" title=" axial coupling constant"> axial coupling constant</a>, <a href="https://publications.waset.org/abstracts/search?q=physic" title=" physic"> physic</a> </p> <a href="https://publications.waset.org/abstracts/2310/determination-of-the-axial-vector-from-an-extended-linear-sigma-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2310.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">446</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">43</span> Physicochemical Profile of Essential Oil of Daucus carota</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nassima%20Behidj-Benyounes">Nassima Behidj-Benyounes</a>, <a href="https://publications.waset.org/abstracts/search?q=Thoraya%20Dahmene"> Thoraya Dahmene</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Essential oils have a significant antimicrobial activity. These oils can successfully replace the antibiotics. So, the microorganisms show their inefficiencies resistant for the antibiotics. For this reason, we study the physic-chemical analysis and antimicrobial activity of the essential oil of Daucus carota. The extraction is done by steam distillation of water which brought us a very significant return of 4.65%. The analysis of the essential oil is performed by GC/MS and has allowed us to identify 32 compounds in the oil of D. carota flowering tops of Bouira. Three of which are in the majority are the α-pinene (22.3%), the carotol (21.7%) and the limonene (15.8%). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=daucus%20carota" title="daucus carota">daucus carota</a>, <a href="https://publications.waset.org/abstracts/search?q=essential%20oil" title=" essential oil"> essential oil</a>, <a href="https://publications.waset.org/abstracts/search?q=%CE%B1-pinene" title=" α-pinene"> α-pinene</a>, <a href="https://publications.waset.org/abstracts/search?q=carotol" title=" carotol"> carotol</a>, <a href="https://publications.waset.org/abstracts/search?q=limonene" title=" limonene"> limonene</a> </p> <a href="https://publications.waset.org/abstracts/22286/physicochemical-profile-of-essential-oil-of-daucus-carota" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22286.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">383</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">42</span> Environmental Pollution and Treatment Technology </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=R.%20Berrached">R. Berrached</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Ait%20Mahamed"> H. Ait Mahamed</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Iddou"> A. Iddou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Water pollution is nowadays a serious problem, due to the increasing scarcity of water and thus to the impact induced by such pollution on the human health. Various techniques are made use of to deal with water pollution. Among the most used ones, some can be enumerated: the bacterian bed, the activated mud, the Lagunage as biological processes and coagulation-floculation as a physic-chemical process. These processes are very expensive and an treatment efficiency which decreases along with the increase of the initial pollutants’ concentration. This is the reason why research has been reoriented towards the use of a process by adsorption as an alternative solution instead of the other traditional processes. In our study, we have tempted to exploit the characteristics of two metallic hydroxides Al and Fe to purify contaminated water by two industrial dyes SBL blue and SRL-150 orange. Results have shown the efficiency of the two materials on the blue SBL dye. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=metallic%20hydroxydes" title="metallic hydroxydes">metallic hydroxydes</a>, <a href="https://publications.waset.org/abstracts/search?q=industrial%20dyes" title=" industrial dyes"> industrial dyes</a>, <a href="https://publications.waset.org/abstracts/search?q=purificat%C4%B1on" title=" purificatıon"> purificatıon</a>, <a href="https://publications.waset.org/abstracts/search?q=" title=" "> </a> </p> <a href="https://publications.waset.org/abstracts/22563/environmental-pollution-and-treatment-technology" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22563.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">325</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">41</span> Biochemical Identification and Study of Antibiotic Resistance in Isolated Bacteria from WWTP TIMGAD</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdessemed%20Zineb">Abdessemed Zineb</a>, <a href="https://publications.waset.org/abstracts/search?q=Atia%20Yahia"> Atia Yahia</a>, <a href="https://publications.waset.org/abstracts/search?q=Yeza%20Salima"> Yeza Salima </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Water is self-purified by activated sludge process which makes its uniqueness. The main goal is the microbial biocenosis study of the input and output water of the waste water treatment system plant Timgad. 89.47% of the identified biocenosis belongs to ɤ-Proteobacteria while the remaining 10.52 % is equally divided between α-Proteobacteria and β-Proteobacteria. The antibiotics susceptibility profiles reveal that over 30 % are wild strains while the penicillinases are often present (11.30-20 %) with also other profiles. This proportion is worrying that the water discharged join the Oued Soltez used for irrigation. This disadvantage involves the installation of a chlorination step. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=activated%20sludge" title="activated sludge">activated sludge</a>, <a href="https://publications.waset.org/abstracts/search?q=biocenosis" title=" biocenosis"> biocenosis</a>, <a href="https://publications.waset.org/abstracts/search?q=antibiotics%20profiles" title=" antibiotics profiles"> antibiotics profiles</a>, <a href="https://publications.waset.org/abstracts/search?q=penicillinases" title=" penicillinases"> penicillinases</a>, <a href="https://publications.waset.org/abstracts/search?q=physic-chemical%20quality" title=" physic-chemical quality"> physic-chemical quality</a> </p> <a href="https://publications.waset.org/abstracts/26876/biochemical-identification-and-study-of-antibiotic-resistance-in-isolated-bacteria-from-wwtp-timgad" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26876.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">305</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">40</span> Adsoption Tests of Two Industrial Dyes by Hydroxyds of Metals</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=R.%20Berrached">R. Berrached</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Ait%20Mahamed"> H. Ait Mahamed</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Iddou"> A. Iddou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Water pollution is nowadays a serious problem, due to the increasing scarcity of water and thus to the impact induced by such pollution on the human health. Various techniques are made use of to deal with water pollution. Among the most used ones, some can be enumerated: the bacterian bed, the activated sludge, lagoons as biological processes and coagulation-flocculation as a physic-chemical process. These processes are very expensive and a decreasing in efficiency treatment with the increase of the initial pollutants concentration. This is the reason why research has been reoriented towards the use of adsorption process as an alternative solution instead of the other traditional processes. In our study, we have tempted to explore the characteristics of hydroxides of Al and Fe to purify contaminated water by two industrial dyes SBL blue and SRL-150 orange. Results have shown the efficiency of the two materials on the blue SBL dye. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=metallic%20hydroxydes" title="metallic hydroxydes">metallic hydroxydes</a>, <a href="https://publications.waset.org/abstracts/search?q=dyes" title=" dyes"> dyes</a>, <a href="https://publications.waset.org/abstracts/search?q=purification" title=" purification"> purification</a>, <a href="https://publications.waset.org/abstracts/search?q=adsorption" title=" adsorption"> adsorption</a> </p> <a href="https://publications.waset.org/abstracts/32500/adsoption-tests-of-two-industrial-dyes-by-hydroxyds-of-metals" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32500.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">337</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">39</span> Adsoption Tests of Two Industrial Dyes by Metallic Hydroxyds</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=R.%20Berrached">R. Berrached</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Ait%20Mahamed"> H. Ait Mahamed</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Iddou"> A. Iddou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Water pollution is nowadays a serious problem, due to the increasing scarcity of water and thus to the impact induced by such pollution on the human health. Various techniques are made use of to deal with water pollution. Among the most used ones, some can be enumerated: the bacterian bed, the activated mud, the Lagunage as biological processes and coagulation-floculation as a physic-chemical process. These processes are very expensive and an treatment efficiency which decreases along with the increase of the initial pollutants’ concentration. This is the reason why research has been reoriented towards the use of a process by adsorption as an alternative solution instead of the other traditional processes. In our study, we have tempted to exploit the characteristics of two metallic hydroxides Al and Fe to purify contaminated water by two industrial dyes SBL blue and SRL-150 orange. Results have shown the efficiency of the two materials on the blue SBL dye. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Metallic%20Hydroxydes" title="Metallic Hydroxydes">Metallic Hydroxydes</a>, <a href="https://publications.waset.org/abstracts/search?q=industrial%20dyes" title=" industrial dyes"> industrial dyes</a>, <a href="https://publications.waset.org/abstracts/search?q=purification" title=" purification"> purification</a>, <a href="https://publications.waset.org/abstracts/search?q=lagunage" title=" lagunage"> lagunage</a> </p> <a href="https://publications.waset.org/abstracts/22868/adsoption-tests-of-two-industrial-dyes-by-metallic-hydroxyds" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22868.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">467</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">38</span> Physico-Chemical Properties of Silurian Hot Shale in Ahnet Basin, Algeria: Case Study Well ASS-1</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Mehdi%20Kadri">Mohamed Mehdi Kadri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The prediction of hot shale interval in Silurian formation in a well drilled vertically in Ahnet basin Is by logging Data (Resistivity, Gamma Ray, Sonic) with the calculation of total organic carbon (TOC) using ∆ log R Method. The aim of this paper is to present Physico-chemical Properties of Hot Shale using IR spectroscopy and gas chromatography-mass spectrometry analysis; this mixture of measurements, evaluation and characterization show that the hot shale interval located in the lower of Silurian, the molecules adsorbed at the surface of shale sheet are significantly different from petroleum hydrocarbons this result are also supported with gas-liquid chromatography showed that the study extract is a hydroxypropyl. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=physic-chemical%20analysis" title="physic-chemical analysis">physic-chemical analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=reservoirs%20characterization" title=" reservoirs characterization"> reservoirs characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=sweet%20window%20evaluation" title=" sweet window evaluation"> sweet window evaluation</a>, <a href="https://publications.waset.org/abstracts/search?q=Silurian%20shale" title=" Silurian shale"> Silurian shale</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahnet%20basin" title=" Ahnet basin"> Ahnet basin</a> </p> <a href="https://publications.waset.org/abstracts/151737/physico-chemical-properties-of-silurian-hot-shale-in-ahnet-basin-algeria-case-study-well-ass-1" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/151737.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">101</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">37</span> Application of Nanofiltration Membrane for River Nile Water Treatment in Egypt</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tarek%20S.%20Jamil">Tarek S. Jamil</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20M.%20Shaban"> Ahmed M. Shaban</a>, <a href="https://publications.waset.org/abstracts/search?q=Eman%20S.%20Mansor"> Eman S. Mansor</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20A.%20Karim"> Ahmed A. Karim</a>, <a href="https://publications.waset.org/abstracts/search?q=Azza%20M.%20Abdel%20Aty"> Azza M. Abdel Aty</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this manuscript, 35 m³/d NF unit was designed and applied for surface water treatment of river Nile water. Intake of Embaba drinking water treatment plant was selected to install that unit at since; it has the lowest water quality index value through the examined 6 sites in greater Cairo area. The optimized operating conditions were feed and permeate flow, 40 and 7 m³/d, feed pressure 2.68 bar and flux rate 37.7 l/m2.h. The permeate water was drinkable according to Egyptian Ministerial decree 458/2007 for the tested parameters (physic-chemical, heavy metals, organic, algal, bacteriological and parasitological). Single and double sand filters were used as pretreatment for NF membranes, but continuous clogging for sand filters moved us to use UF membrane as pretreatment for NF membrane. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=River%20Nile" title="River Nile">River Nile</a>, <a href="https://publications.waset.org/abstracts/search?q=NF%20membrane" title=" NF membrane"> NF membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=pretreatment" title=" pretreatment"> pretreatment</a>, <a href="https://publications.waset.org/abstracts/search?q=UF%20membrane" title=" UF membrane"> UF membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20quality" title=" water quality"> water quality</a> </p> <a href="https://publications.waset.org/abstracts/61649/application-of-nanofiltration-membrane-for-river-nile-water-treatment-in-egypt" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/61649.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">708</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">36</span> Study of Rheological, Physic-Mechanical and Morphological Properties of Nitrile Butadiene Rubber Loaded with Organo-Bentonite</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Doaa%20S.%20Mahmoud">Doaa S. Mahmoud</a>, <a href="https://publications.waset.org/abstracts/search?q=Nivin%20M.%20Ahmed"> Nivin M. Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20H.%20El-Sabbagh"> Salwa H. El-Sabbagh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The rheometric characteristics and physicomechanical properties of bentonite / acrylonitrile-butadiene rubber (NBR) were investigated. The influences of adding bentonite (Bt) and / or modified bentonite (organo-Bt) to the rubber were observed. Scanning electron microscopy (SEM) showed that the rubber chains may be confined within the interparticle space and the Bt particles presented a physical dispersion in NBR matrix. Bentonite (Bt) was modified with tetra butyl phosphonium bromide (TBP) in order to produce organo-Bt. The modification was carried out at 0.5, 1 and 2 cation exchange capacity (CEC) of bentonite. Results showed that the maximum torque of organo-Bt / NBR composite increases at high bentonite loading. The scorch time (tS2) and cure time (tC90) of the organo-Bt / NBR composites decreased simultaneously relative to those of the neat NBR. The prepared composite exhibited significant improvement in mechanical compared with that of neat NBR. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=acrylonitrile-butadiene%20rubber" title="acrylonitrile-butadiene rubber">acrylonitrile-butadiene rubber</a>, <a href="https://publications.waset.org/abstracts/search?q=bentonite" title=" bentonite"> bentonite</a>, <a href="https://publications.waset.org/abstracts/search?q=composites" title=" composites"> composites</a>, <a href="https://publications.waset.org/abstracts/search?q=physico-mechanical%20properties" title=" physico-mechanical properties"> physico-mechanical properties</a> </p> <a href="https://publications.waset.org/abstracts/71828/study-of-rheological-physic-mechanical-and-morphological-properties-of-nitrile-butadiene-rubber-loaded-with-organo-bentonite" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71828.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">265</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">35</span> Synthesis and Physico-Chemical Analysis of Jatropha curcas Seed Oil for ISO VG32 and VG46 Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Nuhu">M. Nuhu</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20S.%20Amina"> M. S. Amina</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20H.%20Aminu"> A. H. Aminu</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20J.%20Abbas"> A. J. Abbas</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Salahudeen"> N. Salahudeen</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Z.%20Yusuf"> A. Z. Yusuf </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Transesterification of jatropha methyl ester (JME) with the common polyol, trimethylolpropane (TMP) produced the TMP based ester which exhibits improved temperature properties. This paper discusses the physic-chemical properties of jatropha bio-lubricant base oil applicable for ISO VG32 and VG46 requirement. The catalyst employed for the JME was CaO synthesized in National Research Institute for Chemical Technology (NARICT) that gives 100% conversion. The molar ratio of JME to TMP was 3.5:1 and the catalyst (NaOCH3) loading were found to be 0.8% of the weight of the total reactants. The final fractionated jatropha bio-lubricant base was found to contain 11.95% monoesters, 43.89% diesters and 44.16% triesters (desired product). In addition, it was found that the bio-lubricant base oil produced is comparable to the ISO VG46 commercial standards for light and industrial gears applications and other plant based bio-lubricant. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biodegradability" title="biodegradability">biodegradability</a>, <a href="https://publications.waset.org/abstracts/search?q=methyl%20ester" title=" methyl ester"> methyl ester</a>, <a href="https://publications.waset.org/abstracts/search?q=pour%20point" title=" pour point"> pour point</a>, <a href="https://publications.waset.org/abstracts/search?q=transesterification" title=" transesterification"> transesterification</a>, <a href="https://publications.waset.org/abstracts/search?q=viscosity%20index" title=" viscosity index"> viscosity index</a> </p> <a href="https://publications.waset.org/abstracts/19636/synthesis-and-physico-chemical-analysis-of-jatropha-curcas-seed-oil-for-iso-vg32-and-vg46-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19636.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">667</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">34</span> Particle Dust Layer Density and the Optical Wavelength Absorption Relationship in Photovoltaic Module</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Mesrouk">M. Mesrouk</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Hadj%20Arab"> A. Hadj Arab </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work allows highlight the effect of dust on the absorption of the optical spectrum on the photovoltaic module, the effect of the particles dust presence on the photovoltaic modules have been a microscopic scale studied with COMSOL Multi-physic software simulation. In this paper, we have supposed the dust layer as a diffraction network repetitive optical structure characterized by the spacing between particle which represented by 'd' and the simulated structure (air-dust particle-glass). In this study we can observe the relationship between the wavelength and the particle spacing, the simulation shows us that the maximum wavelength transmission value corresponding, λ0 = 400nm, which represent the spacing value between the particles dust, d = 400 nm. In fact, we can observe that while increase dust layer density the wavelength transmission value decrease, there is a relationship between the density and wavelength value which can be absorbed in a dusty photovoltaic panel. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dust%20effect" title="dust effect">dust effect</a>, <a href="https://publications.waset.org/abstracts/search?q=photovoltaic%20module" title=" photovoltaic module"> photovoltaic module</a>, <a href="https://publications.waset.org/abstracts/search?q=spectral%20absorption" title=" spectral absorption"> spectral absorption</a>, <a href="https://publications.waset.org/abstracts/search?q=wavelength%20transmission" title=" wavelength transmission"> wavelength transmission</a> </p> <a href="https://publications.waset.org/abstracts/30291/particle-dust-layer-density-and-the-optical-wavelength-absorption-relationship-in-photovoltaic-module" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30291.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">463</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">33</span> Nanostructural Analysis of the Polylactic Acid (PLA) Fibers Functionalized by RF Plasma Treatment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20H.%20O.%20Nascimento">J. H. O. Nascimento</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20R.%20Oliveira"> F. R. Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20K.%20O.%20S.%20Silva"> K. K. O. S. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Neves"> J. Neves</a>, <a href="https://publications.waset.org/abstracts/search?q=V.%20Teixeira"> V. Teixeira</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Carneiro"> J. Carneiro</a> </p> <p class="card-text"><strong>Abstract:</strong></p> These the aliphatic polyesters such as Polylactic Acid (PLA) in the form of fibers, nanofibers or plastic films, generally possess chemically inert surfaces, free porosity, and surface free energy (ΔG) lesser than 32 mN/m. It is therefore considered a low surface energy material, consequently has a low work of adhesion. For this reason, the products manufactured using these polymers are often subjected to surface treatments in order to change its physic-chemical surface, improving their wettability and the Work of Adhesion (WA). Plasma Radio Frequency low pressure (RF) treatment was performed in order to improve the Work of Adhesion (WA) on PLA fibers. Different parameters, such as, power, ratio of working gas (Argon/Oxygen) and treatment time were used to optimize the plasma conditions to modify the PLA surface properties. With plasma treatment, a significant increase in the work of adhesion on PLA fiber surface was observed. The analysis performed by XPS showed an increase in polar functional groups and the SEM and AFM image revealed a considerable increase in roughness. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=RF%20plasma" title="RF plasma">RF plasma</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20modification" title=" surface modification"> surface modification</a>, <a href="https://publications.waset.org/abstracts/search?q=PLA%20fabric" title=" PLA fabric"> PLA fabric</a>, <a href="https://publications.waset.org/abstracts/search?q=atomic%20force%20macroscopic" title=" atomic force macroscopic"> atomic force macroscopic</a>, <a href="https://publications.waset.org/abstracts/search?q=Nanotechnology" title=" Nanotechnology"> Nanotechnology</a> </p> <a href="https://publications.waset.org/abstracts/30760/nanostructural-analysis-of-the-polylactic-acid-pla-fibers-functionalized-by-rf-plasma-treatment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30760.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">537</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">32</span> Performance of Self-Compacting Mortars Containing Foam Glass Granulate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Brahim%20Safi">Brahim Safi</a>, <a href="https://publications.waset.org/abstracts/search?q=Djamila%20Aboutaleb"> Djamila Aboutaleb</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Saidi"> Mohammed Saidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelbaki%20Benmounah"> Abdelbaki Benmounah</a>, <a href="https://publications.waset.org/abstracts/search?q=Fahima%20Benbrahim"> Fahima Benbrahim </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The inorganic wastes are currently used in the manufacture of concretes as mineral additions by cement substitution or as fine/coarse aggregates by replacing traditional aggregates. In this respect, this study aims to valorize the mineral wastes in particular glass wastes to produce granulated foam glass (as fine aggregates). Granulated foam glasses (GFG) were prepared from the glass powder (glass cullet) and foaming agent (limestone) according to applied manufacturing of GFG (at a heat treatment 850 ° C for 20min). After, self-compacting mortars were elaborated with fine aggregate (sand) and other variant mortars with granulated foam glass at volume ratio (0, 30, 50 and 100 %). Rheological characterization tests (fluidity) and physic-mechanical (density, porosity /absorption of water and mechanical tests) were carried out on studied mortars. The results obtained show that a slightly decreasing of compressive strength of mortars having lightness very important for building construction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=glass%20wastes" title="glass wastes">glass wastes</a>, <a href="https://publications.waset.org/abstracts/search?q=lightweight%20aggregate" title=" lightweight aggregate"> lightweight aggregate</a>, <a href="https://publications.waset.org/abstracts/search?q=mortar" title=" mortar"> mortar</a>, <a href="https://publications.waset.org/abstracts/search?q=fluidity" title=" fluidity"> fluidity</a>, <a href="https://publications.waset.org/abstracts/search?q=density" title=" density"> density</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20strength" title=" mechanical strength"> mechanical strength</a> </p> <a href="https://publications.waset.org/abstracts/40043/performance-of-self-compacting-mortars-containing-foam-glass-granulate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/40043.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">228</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">31</span> Synthesis, Spectroscopic and XRD Study of Transition Metal Complex Derived from Low-Schiff Acyl-Hydrazone Ligand</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamedou%20El%20Boukhary">Mohamedou El Boukhary</a>, <a href="https://publications.waset.org/abstracts/search?q=Farba%20Bouyagui%20Tamboura"> Farba Bouyagui Tamboura</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Hamady%20Barry"> A. Hamady Barry</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Moussa%20Seck"> T. Moussa Seck</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20L.%20Gaye"> Mohamed L. Gaye</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nowadays, low-schiff acyl-hydrazone ligands are highly sought after due to their wide applications in various fields of biology, coordination chemistry, and catalysis. They are studied for their antioxidant, antibacterial and antiviral properties. The complexes of transition metals and the lanthanide they derive are well known for their magnetic, optical, and catalytic properties. In this work, we present the synthesis of an acyl-hydrazone (H2L) schiff base and their 3d transition complexes. The ligand (H2L) is characterized by IR, NMR (1H; 13C) spectroscopy. The complexes are characterized by different physic-chemical techniques such as IR, UV-visible, conductivity, measurement of magnetic susceptibility. The study of XRD allowed us to elucidate the crystalline structure of the manganese (Mn) complex. The asymmetric unit of the complex is composed of two molecules of the ligand, one manganese (II) ion, and two coordinate chloride ions; the environment around Mn is described as a pentagonal base bipyramid. In the crystal lattice, the asymmetric unit is bound by hydrogen bonds. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=synthene" title="synthene">synthene</a>, <a href="https://publications.waset.org/abstracts/search?q=acyl-hydrazone" title=" acyl-hydrazone"> acyl-hydrazone</a>, <a href="https://publications.waset.org/abstracts/search?q=3D%20transition%20metal%20complex" title=" 3D transition metal complex"> 3D transition metal complex</a>, <a href="https://publications.waset.org/abstracts/search?q=application" title=" application"> application</a> </p> <a href="https://publications.waset.org/abstracts/186028/synthesis-spectroscopic-and-xrd-study-of-transition-metal-complex-derived-from-low-schiff-acyl-hydrazone-ligand" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/186028.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">53</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">30</span> Change of Physicochemical Properties of Grain in the Germination of Chickpea Grain</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mira%20Zhonyssova">Mira Zhonyssova</a>, <a href="https://publications.waset.org/abstracts/search?q=Nurlaym%20Ongarbayeva"> Nurlaym Ongarbayeva</a>, <a href="https://publications.waset.org/abstracts/search?q=Makpal%20Atykhanova"> Makpal Atykhanova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Indicators of quality of grain chickpeas, the absorption of water different temperatures by grain chickpeas studied. Organoleptic and physicochemical changes in the germination of chickpeas studied. The total time of the duration of germination of chickpea grain is determined. As a result of the analysis of experimental data, it was found that the germination time at which the chickpea sprout length was 0.5- 3 mm varies from 21 to 25 hours. The change in the volume of chickpea grain during germination was investigated. It was found that in the first 2 hours the volume of chickpeas changes slightly – by 38%. This is due to the process of adsorption of water to a critical state. From 2 to 9 hours, the process of swelling of chickpea grain is observed – the vital activity of cells increases, enzymatic systems become active, the respiratory coefficient increases; gibberellin, stimulating the formation of a number of enzymes, is released. During this period, there is a sharp increase in the volume of chickpea grains – up to 138%. From 9 to 19 hours, “sprouting” of chickpea grains is observed, no morphological changes occur in the corcule – the grain volume remains at 138%. From 19 hours, the grain growth process begins, while the grain volume increases by 143%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chickpea" title="chickpea">chickpea</a>, <a href="https://publications.waset.org/abstracts/search?q=seeds" title=" seeds"> seeds</a>, <a href="https://publications.waset.org/abstracts/search?q=legumes" title=" legumes"> legumes</a>, <a href="https://publications.waset.org/abstracts/search?q=germination" title=" germination"> germination</a>, <a href="https://publications.waset.org/abstracts/search?q=physic-chemical%20properties" title=" physic-chemical properties"> physic-chemical properties</a> </p> <a href="https://publications.waset.org/abstracts/181047/change-of-physicochemical-properties-of-grain-in-the-germination-of-chickpea-grain" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/181047.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">57</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">29</span> Effect of Incorporation of Seaweed Extract in Gelatin Based Film on Physic-Chemical and Bioactive Properties of Film</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shekhar%20U.%20Kadam">Shekhar U. Kadam</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20K.%20Pankaj"> S. K. Pankaj</a>, <a href="https://publications.waset.org/abstracts/search?q=Brijesh%20K.%20Tiwari"> Brijesh K. Tiwari</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20J.%20Cullen"> P. J. Cullen</a>, <a href="https://publications.waset.org/abstracts/search?q=Colm%20P.%20O%E2%80%99Donnell"> Colm P. O’Donnell</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Brown seaweed L. hyperborea is a rich source of phenolic compounds with antioxidant and antimicrobial properties. The aim of this work was to study the effect of incorporation of L. hyperborea extract to bovine gelatin film on the physicochemical and antioxidant properties of film. Films with fraction of 25% by weight of bovine gelatin sample were cast with addition of glycerol as a plasticizer. The total phenolic content and antioxidant activity of the films showed higher levels with addition of seaweed extract. Also film appearance properties such as film thickness, color and light transparency were evaluated. Film appearance was slightly modified whereas microstructure of films showed rough patches at 50% level of extract in the film. Hydrophilicity and glass transition temperature of the films also increased with increased level of seaweed extract. It was found that seaweed extract can be incorporated within gelatin and casein for development of biofunctional films. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Laminaria%20hyperborea" title="Laminaria hyperborea">Laminaria hyperborea</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrasound" title=" ultrasound"> ultrasound</a>, <a href="https://publications.waset.org/abstracts/search?q=seaweed%20extract" title=" seaweed extract"> seaweed extract</a>, <a href="https://publications.waset.org/abstracts/search?q=bovine%20gelatin%20film" title=" bovine gelatin film"> bovine gelatin film</a>, <a href="https://publications.waset.org/abstracts/search?q=antioxidant" title=" antioxidant"> antioxidant</a>, <a href="https://publications.waset.org/abstracts/search?q=phenolic%20compounds" title=" phenolic compounds"> phenolic compounds</a> </p> <a href="https://publications.waset.org/abstracts/25557/effect-of-incorporation-of-seaweed-extract-in-gelatin-based-film-on-physic-chemical-and-bioactive-properties-of-film" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25557.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">519</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">28</span> Nanohybrids for Energy Storage Devices</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=O.%20Guellati">O. Guellati</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Harat"> A. Harat</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Djefaflia"> F. Djefaflia</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Habib"> N. Habib</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Nait-Merzoug"> A. Nait-Merzoug</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20El%20Haskouri"> J. El Haskouri</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Momodu"> D. Momodu</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Manyala"> N. Manyala</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20B%C3%A9gin"> D. Bégin</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Guerioune"> M. Guerioune</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We report a facile and low-cost free-template synthesis method was used to synthesize mesoporous smart multifunctional nanohybrids based on Graphene/PANI nanofibers micro/nanostructures with very interesting physic-chemical properties and faradic electrochemical behavior of these products was investigated. These nanohybrid products have been characterized quantitatively and qualitatively using different techniques, such as XRD / FTIR, Raman, XPS spectroscopy, Field Emission SEM and High-Resolution TEM microscopy, BET textural analysis, electrochemical measurements (CV, CD, EIS). Moreover, the electrochemical measurements performed in a 6 M KOH aqueous electrolyte depicted excellent electrochemical performance ascribed to the optimized composition of hydroxides et PANI nanofibers. An exceptionally notable specific capacitance between 800 and 2000 F. g-1 was obtained at 5 mV. s-1 scan rate for these synthesized products depends on the optimized growth conditions. We found much better nanohybrids by reinforcing hydroxides or conduction polymer nanofibers with carbonaceous nanomaterials depicting their potential as suitable materials for energy storage devices. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanohybrid%20materials" title="nanohybrid materials">nanohybrid materials</a>, <a href="https://publications.waset.org/abstracts/search?q=conducting%20polymers" title=" conducting polymers"> conducting polymers</a>, <a href="https://publications.waset.org/abstracts/search?q=carbonaceous%20nanomaterials" title=" carbonaceous nanomaterials"> carbonaceous nanomaterials</a>, <a href="https://publications.waset.org/abstracts/search?q=supercapacitors" title=" supercapacitors"> supercapacitors</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20storage" title=" energy storage"> energy storage</a> </p> <a href="https://publications.waset.org/abstracts/169195/nanohybrids-for-energy-storage-devices" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/169195.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">71</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27</span> Recycling of Aggregates from Construction Demolition Wastes in Concrete: Study of Physical and Mechanical Properties</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Saidi">M. Saidi</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Ait%20Medjber"> F. Ait Medjber</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Safi"> B. Safi</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Samar"> M. Samar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work is focused on the study of valuation of recycled concrete aggregates, by measuring certain properties of concrete in the fresh and hardened state. In this study, rheological tests and physic-mechanical characterization on concretes and mortars were conducted with recycled concrete whose geometric properties were identified aggregates. Mortars were elaborated with recycled fine aggregate (0/5mm) and concretes were manufactured using recycled coarse aggregates (5/12.5 mm and 12.5/20 mm). First, a study of the mortars was conducted to determine the effectiveness of adjuvant polycarboxylate superplasticizer on the workability of these and their action deflocculating of the fine recycled sand. The rheological behavior of mortars based on fine aggregate recycled was characterized. The results confirm that the mortars composed of different fractions of recycled sand (0/5) have a better mechanical properties (compressive and flexural strength) compared to normal mortar. Also, the mechanical strengths of concretes made with recycled aggregates (5/12.5 mm and 12.5/20 mm), are comparable to those of conventional concrete with conventional aggregates, provided that the implementation can be improved by the addition of a superplasticizer. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=demolition%20wastes" title="demolition wastes">demolition wastes</a>, <a href="https://publications.waset.org/abstracts/search?q=recycled%20coarse%20aggregate" title=" recycled coarse aggregate"> recycled coarse aggregate</a>, <a href="https://publications.waset.org/abstracts/search?q=concrete" title=" concrete"> concrete</a>, <a href="https://publications.waset.org/abstracts/search?q=workability" title=" workability"> workability</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20strength" title=" mechanical strength"> mechanical strength</a>, <a href="https://publications.waset.org/abstracts/search?q=porosity%2Fwater%20absorption" title=" porosity/water absorption"> porosity/water absorption</a> </p> <a href="https://publications.waset.org/abstracts/14876/recycling-of-aggregates-from-construction-demolition-wastes-in-concrete-study-of-physical-and-mechanical-properties" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14876.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">339</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">26</span> Batch Kinetic, Isotherm and Thermodynamic Studies of Copper (II) Removal from Wastewater Using HDL as Adsorbent</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadjet%20Taoualit">Nadjet Taoualit</a>, <a href="https://publications.waset.org/abstracts/search?q=Zoubida%20Chemat"> Zoubida Chemat</a>, <a href="https://publications.waset.org/abstracts/search?q=Djamel-Eddine%20Hadj-Boussaad"> Djamel-Eddine Hadj-Boussaad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aims the removal of copper Cu (II) contained in wastewater by adsorption on a perfect synthesized mud. It is the materials Hydroxides Double Lamellar, HDL, prepared and synthesized by co-precipitation method at constant pH, which requires a simple titration assembly, with an inexpensive and available material in the laboratory, and also allows us better control of the composition of the reaction medium, and gives well crystallized products. A characterization of the adsorbent proved essential. Thus a range of physic-chemical analysis was performed including: FTIR spectroscopy, X-ray diffraction… The adsorption of copper ions was investigated in dispersed medium (batch). A systematic study of various parameters (amount of support, contact time, initial copper concentration, temperature, pH…) was performed. Adsorption kinetic data were tested using pseudo-first order, pseudo-second order, Bangham's equation and intra-particle diffusion models. The equilibrium data were analyzed using Langmuir, Freundlich, Tempkin and other isotherm models at different doses of HDL. The thermodynamics parameters were evaluated at different temperatures. The results have established good potentiality for the HDL to be used as a sorbent for the removal of Copper from wastewater. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adsoption" title="adsoption">adsoption</a>, <a href="https://publications.waset.org/abstracts/search?q=copper" title=" copper"> copper</a>, <a href="https://publications.waset.org/abstracts/search?q=HDL" title=" HDL"> HDL</a>, <a href="https://publications.waset.org/abstracts/search?q=isotherm" title=" isotherm"> isotherm</a> </p> <a href="https://publications.waset.org/abstracts/36340/batch-kinetic-isotherm-and-thermodynamic-studies-of-copper-ii-removal-from-wastewater-using-hdl-as-adsorbent" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36340.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">276</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">25</span> Typology of the Physic-Chemical Quality of the Water of the Area of Touggourt Case: Aquifers of the Intercalary Continental and the Terminal Complex, S-E of Algeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Habes%20Sameh">Habes Sameh</a>, <a href="https://publications.waset.org/abstracts/search?q=Bettahar%20Asma"> Bettahar Asma</a>, <a href="https://publications.waset.org/abstracts/search?q=Nezli%20Imad%20Eddine"> Nezli Imad Eddine</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The region of Touggourt is situated in the southern part is Algeria, it receives important quantities of waters, the latter are extracted from the fossil groundwater (the Intercalary Continental and the Terminal Complex). The mineralization of these waters of the Terminal Complex is between 3 and 6,5 g/l and for waters of Intercalary Continental is 1,8 and 8,7 g/l, thus it constitutes an obstacle as for its use. To highlight the origins of this mineralization, we used the hydrochemical tool. So the chemical analyses in our ownership, were treated by means of the software "Statistica", what allowed us to realize an analysis in main components (ACP), the latter showed a competition between sodic or magnesian chlorinated water and calcic bicarbonate water, rich in potassium for the TC, while for the IC, we have a competition between sodic or calcic chlorinated and magnesian water treated with copper sulphate waters. The simulation realized thermodynamics showed a variation of the index of saturation which do not exceed zero, for waters of two aquifer TC and IC, so indicating one under saturation of waters towards minerals, highlighting the influence of the geologic formation in the outcrop on the quality of waters. However, we notice that these waters remain acceptable for the irrigation of plants but must be treated before what are consumed by the human being. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ACP" title="ACP">ACP</a>, <a href="https://publications.waset.org/abstracts/search?q=intercalary" title=" intercalary"> intercalary</a>, <a href="https://publications.waset.org/abstracts/search?q=continental" title=" continental"> continental</a>, <a href="https://publications.waset.org/abstracts/search?q=mineralization" title=" mineralization"> mineralization</a>, <a href="https://publications.waset.org/abstracts/search?q=SI" title=" SI"> SI</a>, <a href="https://publications.waset.org/abstracts/search?q=Terminal%20Complex" title=" Terminal Complex"> Terminal Complex</a> </p> <a href="https://publications.waset.org/abstracts/22540/typology-of-the-physic-chemical-quality-of-the-water-of-the-area-of-touggourt-case-aquifers-of-the-intercalary-continental-and-the-terminal-complex-s-e-of-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22540.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">528</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24</span> Treatment Performance of Waste Stabilization Ponds: A Look at Physic-Chemical Parameters in Ghana</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Emmanuel%20Adu-Ofori">Emmanuel Adu-Ofori</a>, <a href="https://publications.waset.org/abstracts/search?q=Richard%20Amfo-Otu"> Richard Amfo-Otu</a>, <a href="https://publications.waset.org/abstracts/search?q=Isaac%20O.%20A.%20Hodgson"> Isaac O. A. Hodgson</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study was conducted to determine the treatment performance of waste stabilization ponds in Akosombo. A total of 15 samples were taken for four consecutive months from the inlet, facultative pond and outlet of maturation pond. The samples were preserved and transported to Water Research Institute for laboratory analysis. The wastewater quality parameters analysed to assess the treatment performance were total suspended solids (TSS), biochemical oxygen demand (BOD), chemical oxygen demand (COD), ammonia and phosphate. The results of the laboratory analysis showed that the ponds achieved TSS, BOD and COD removals of about 30, 82 and 75 per cent respectively. Statistically, the BOD (t = 10.27, p = 6.68 x 10-6) and COD (t = 4.23, p = 0.0029) of the raw sewage were significantly different from the total effluent at 95% confidence interval. The ammonia and phosphate removal was as high as 92% and 84% respectively. The quality parameters analysed for the final effluent from the Waste Stabilisation Pond was within the EPA guideline values. The general treatment performances were very good with respect to the parameters studied and does not pose threat to the receiving water body. A further study to examine the bacteriological treatment performance was recommended. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=waste%20stabilization%20pond" title="waste stabilization pond">waste stabilization pond</a>, <a href="https://publications.waset.org/abstracts/search?q=wast%20water" title=" wast water"> wast water</a>, <a href="https://publications.waset.org/abstracts/search?q=treatment%20performance" title=" treatment performance"> treatment performance</a>, <a href="https://publications.waset.org/abstracts/search?q=nutrient" title=" nutrient"> nutrient</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghana" title=" Ghana"> Ghana</a> </p> <a href="https://publications.waset.org/abstracts/13904/treatment-performance-of-waste-stabilization-ponds-a-look-at-physic-chemical-parameters-in-ghana" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13904.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">320</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">23</span> Synthesis and Characterization of Mass Catalysts Based on Cobalt and Molybdenum</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nassira%20Ouslimani">Nassira Ouslimani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The electronic structure of transition metals gives them many catalytic possibilities in many types of reactions, particularly cobalt and molybdenum. It is in this context that this study is part of the synthesis and characterization of mass catalysts based on cobalt and molybdenum Co1₋xMoO4 (X=0 and X=0.5 and X=1). The two catalysts were prepared by Co-precipitation using ammonia as a precipitating agent and one by precipitation. The samples obtained were analyzed by numerous physic-chemical analysis techniques: ATG-ATD-DSC, DRX-HT, SEM-EDX, and the elemental composition of the catalysts was verified by SAA as well as the FTIR. The ATG-DSC shows a mass loss for all the catalysts of approximately 8%, corresponding to the loss of water and the decomposition of nitrates. The DRX-HT analysis allows the detection of the two CoMoO4 phases with diffraction peaks which increase with the increase in temperature. The results of the FTIR analysis made it possible to highlight the vibration modes of the bonds of the structure of the prepared catalysts. The SEM images of the solids show very different textures with almost homogeneous surfaces with a more regular particle size distribution and a more defined grain shape. The EDX analysis showed the presence of the elements Co, Mo, and O in proportions very close to the nominal proportions. Finally, the actual composition, evaluated by SAA, is close to the theoretical composition fixed during the preparation. This testifies to the good conditions for the preparation of the catalysts by the co-precipitation method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=catalytic" title="catalytic">catalytic</a>, <a href="https://publications.waset.org/abstracts/search?q=molybdenum" title=" molybdenum"> molybdenum</a>, <a href="https://publications.waset.org/abstracts/search?q=coprecipitation" title=" coprecipitation"> coprecipitation</a>, <a href="https://publications.waset.org/abstracts/search?q=cobalt" title=" cobalt"> cobalt</a>, <a href="https://publications.waset.org/abstracts/search?q=ammonia" title=" ammonia"> ammonia</a> </p> <a href="https://publications.waset.org/abstracts/156522/synthesis-and-characterization-of-mass-catalysts-based-on-cobalt-and-molybdenum" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156522.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span 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