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From Sampling to Sustainable Phosphate Recovery from Mine Waste Rock Piles
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/></div></noscript> <!-- /Yandex.Metrika counter --> <!-- Matomo --> <!-- End Matomo Code --> <title>From Sampling to Sustainable Phosphate Recovery from Mine Waste Rock Piles</title> <meta name="description" content="From Sampling to Sustainable Phosphate Recovery from Mine Waste Rock Piles"> <meta name="keywords" content="3D modelling, reverse circulation drilling, circular economy, phosphate mine waste rock, sampling"> <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 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class="card"> <div class="card-body"><strong>Paper Count:</strong> 87367</div> </div> </div> </div> <div class="card publication-listing mt-3 mb-3"> <h5 class="card-header" style="font-size:.9rem">From Sampling to Sustainable Phosphate Recovery from Mine Waste Rock Piles</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hicham%20Amar">Hicham Amar</a>, <a href="https://publications.waset.org/abstracts/search?q=Mustapha%20El%20Ghorfi"> Mustapha El Ghorfi</a>, <a href="https://publications.waset.org/abstracts/search?q=Yassine%20Taha"> Yassine Taha</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdellatif%20Elghali"> Abdellatif Elghali</a>, <a href="https://publications.waset.org/abstracts/search?q=Rachid%20Hakkou"> Rachid Hakkou</a>, <a href="https://publications.waset.org/abstracts/search?q=Mostafa%20Benzaazoua"> Mostafa Benzaazoua</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Phosphate mine waste rock (PMWR) generated during ore extraction is continuously increasing, resulting in a significant environmental footprint. The main objectives of this study consist of i) elaboration of the sampling strategy of PMWR piles, ii) a mineralogical and chemical characterization of PMWR piles, and iii) 3D block model creation to evaluate the potential valorization of the existing PMWR. Destructive drilling using reverse circulation from 13 drills was used to collect samples for chemical (X-ray fluorescence analysis) and mineralogical assays. The 3D block model was created based on the data set, including chemical data of the realized drills using Datamine RM software. The optical microscopy observations showed that the sandy phosphate from drills in the PMWR piles is characterized by the abundance of carbonate fluorapatite with the presence of calcite, dolomite, and quartz. The mean grade of composite samples was around 19.5±2.7% for P₂O₅. The mean grade of P₂O₅ exhibited an increasing tendency by depth profile from bottom to top of PMWR piles. 3D block model generated with chemical data confirmed the tendency of the mean grades’ variation and may allow a potential selective extraction according to %P₂O₅. The 3D block model of P₂O₅ grade is an efficient sampling approach that confirmed the variation of P₂O₅ grade. This integrated approach for PMWR management will be a helpful tool for decision-making to recover the residual phosphate, adopting the circular economy and sustainability in the phosphate mining industry. <iframe src="https://publications.waset.org/abstracts/172201.pdf" style="width:100%; height:400px;" frameborder="0"></iframe> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=3D%20modelling" title="3D modelling">3D modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=reverse%20circulation%20drilling" title=" reverse circulation drilling"> reverse circulation drilling</a>, <a href="https://publications.waset.org/abstracts/search?q=circular%20economy" title=" circular economy"> circular economy</a>, <a href="https://publications.waset.org/abstracts/search?q=phosphate%20mine%20waste%20rock" title=" phosphate mine waste rock"> phosphate mine waste rock</a>, <a href="https://publications.waset.org/abstracts/search?q=sampling" title=" sampling"> sampling</a> </p> <a href="https://publications.waset.org/abstracts/172201/from-sampling-to-sustainable-phosphate-recovery-from-mine-waste-rock-piles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/172201.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">77</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" 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