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class="header-wrapper"> <div class="header"> <div class="section-inner"> <div class="blog-title"> <a href="https://blog.dhigroup.com" rel="home">DHI Reservoir - Drops of knowledge</a> </div> <div class="blog-description"><p>blog.dhigroup.com</p> </div> <div class="nav-toggle"> <div class="bars"> <div class="bar"></div> <div class="bar"></div> <div class="bar"></div> </div> </div> </div> </div> <div class="navigation"> <div class="section-inner group"> <ul class="primary-menu reset-list-style dropdown-menu"> </ul> </div> </div> <ul class="mobile-menu reset-list-style"> </ul> </header> <main id="site-content"> <div class="wrapper section-inner group"> <div class="content"> <article id="post-2129" class="single single-post group post-2129 post type-post status-publish format-standard has-post-thumbnail hentry category-cities category-wastewater-treatment tag-digital-twins tag-urban-water tag-wastewater-treatment"> <div class="post-header"> <p class="post-categories"><a href="https://blog.dhigroup.com/category/cities/" rel="category tag">Cities</a>, <a href="https://blog.dhigroup.com/category/cities/wastewater-treatment/" rel="category tag">Wastewater treatment</a></p> <h1 class="post-title">How digital twins help reduce energy use and carbon footprint in wastewater treatment plants</h1> <div class="post-meta"> <span class="resp">Posted</span> <span class="post-meta-author">by <a href="https://blog.dhigroup.com/author/fapodhigroup-com/">Fabio Polesel, Wastewater Engineer</a></span> <span class="post-meta-date">on <a href="https://blog.dhigroup.com/how-digital-twins-help-reduce-energy-use-and-carbon-footprint-in-wastewater-treatment-plants/">14 March 2024</a></span> <span class="post-comments"> <a href="https://blog.dhigroup.com/how-digital-twins-help-reduce-energy-use-and-carbon-footprint-in-wastewater-treatment-plants/#respond"><span class="fa fw fa-comment"></span>0<span class="resp"> Comments</span></a> </span> </div> </div> <figure class="post-image"> <img width="816" height="326" src="https://blog.dhigroup.com/wp-content/uploads/2024/03/Optimised-Plant-1000x400-1-816x326.jpg" class="attachment-post-image size-post-image wp-post-image" alt="" decoding="async" fetchpriority="high" srcset="https://blog.dhigroup.com/wp-content/uploads/2024/03/Optimised-Plant-1000x400-1-816x326.jpg 816w, https://blog.dhigroup.com/wp-content/uploads/2024/03/Optimised-Plant-1000x400-1-300x120.jpg 300w, https://blog.dhigroup.com/wp-content/uploads/2024/03/Optimised-Plant-1000x400-1-768x307.jpg 768w, https://blog.dhigroup.com/wp-content/uploads/2024/03/Optimised-Plant-1000x400-1.jpg 1000w" sizes="(max-width: 816px) 100vw, 816px" /> </figure> <div class="related-posts"> <p class="related-posts-title">Read Next →</p> <div class="row"> <a class="related-post" href="https://blog.dhigroup.com/digital-twins-in-the-water-sector-what-are-they-and-how-do-we-get-there/"> <img width="400" height="160" src="https://blog.dhigroup.com/wp-content/uploads/2023/03/AdobeStock_128564039-400x160.jpeg" class="attachment-post-image-thumb size-post-image-thumb wp-post-image" alt="" decoding="async" srcset="https://blog.dhigroup.com/wp-content/uploads/2023/03/AdobeStock_128564039-400x160.jpeg 400w, https://blog.dhigroup.com/wp-content/uploads/2023/03/AdobeStock_128564039-300x120.jpeg 300w, https://blog.dhigroup.com/wp-content/uploads/2023/03/AdobeStock_128564039-768x307.jpeg 768w, https://blog.dhigroup.com/wp-content/uploads/2023/03/AdobeStock_128564039-816x326.jpeg 816w, https://blog.dhigroup.com/wp-content/uploads/2023/03/AdobeStock_128564039.jpeg 1000w" sizes="(max-width: 400px) 100vw, 400px" /> <p class="category"> Cities </p> <h3 class="title">Digital Twins in the water sector: what are they and how do we get there?</h3> </a> <a class="related-post" href="https://blog.dhigroup.com/the-new-phase-of-disaster-risk-management-are-we-doing-it-right/"> <img width="400" height="160" src="https://blog.dhigroup.com/wp-content/uploads/2022/10/drr-banner-400x160.jpeg" class="attachment-post-image-thumb size-post-image-thumb wp-post-image" alt="" decoding="async" srcset="https://blog.dhigroup.com/wp-content/uploads/2022/10/drr-banner-400x160.jpeg 400w, https://blog.dhigroup.com/wp-content/uploads/2022/10/drr-banner-300x120.jpeg 300w, https://blog.dhigroup.com/wp-content/uploads/2022/10/drr-banner-768x308.jpeg 768w, https://blog.dhigroup.com/wp-content/uploads/2022/10/drr-banner-816x327.jpeg 816w, https://blog.dhigroup.com/wp-content/uploads/2022/10/drr-banner.jpeg 1000w" sizes="(max-width: 400px) 100vw, 400px" /> <p class="category"> Cities </p> <h3 class="title">The new phase of disaster risk management: are we doing it right?</h3> </a> <a class="related-post" href="https://blog.dhigroup.com/how-to-deal-with-aging-infrastructure-and-non-revenue-water/"> <img width="400" height="160" src="https://blog.dhigroup.com/wp-content/uploads/2021/07/NRW-blog-banner-400x160.jpg" class="attachment-post-image-thumb size-post-image-thumb wp-post-image" alt="" decoding="async" loading="lazy" srcset="https://blog.dhigroup.com/wp-content/uploads/2021/07/NRW-blog-banner-400x160.jpg 400w, https://blog.dhigroup.com/wp-content/uploads/2021/07/NRW-blog-banner-300x121.jpg 300w, https://blog.dhigroup.com/wp-content/uploads/2021/07/NRW-blog-banner-768x309.jpg 768w, https://blog.dhigroup.com/wp-content/uploads/2021/07/NRW-blog-banner-816x328.jpg 816w, https://blog.dhigroup.com/wp-content/uploads/2021/07/NRW-blog-banner.jpg 1000w" sizes="(max-width: 400px) 100vw, 400px" /> <p class="category"> Cities </p> <h3 class="title">How to deal with aging infrastructure and non-revenue water</h3> </a> </div> </div> <div class="post-inner"> <div class="post-content entry-content"> <p>As wastewater treatment plant operations are becoming increasingly complex, plant managers and operators face the challenge of ensuring compliance and efficient performance across a range of indicators. The balancing act of maintaining high-efficiency standards in areas such as effluent quality, energy consumption, carbon footprint and OPEX has made the adoption of advanced digital tools a necessity for fast and reliable decision-making.</p> <p>Digital twins are rapidly emerging as a game-changer in the wastewater treatment sector. These virtual replicas of physical systems provide a real-time, data-driven representation of wastewater treatment plant (WWTP) processes, enabling operators to gain insights and make informed decisions in a complex operational and regulatory landscape.</p> <pre class="wp-block-preformatted"><strong>The increasingly complex requirements for wastewater treatment</strong> Environmental requirements of wastewater treatment plants are increasing and are likely to increase over coming decades. As an example, the EU recently announced an upcoming extension of the existing wastewater directive. By 2045, member states must ensure the application of quaternary treatment (i.e., for the removal of micropollutants). Furthermore, wastewater treatment plants must live up to an energy neutrality target, meaning that ‘by 2045 urban wastewater treatment plants will have to produce the energy they consume, with progressive intermediate targets. This energy can be produced on or off-site, and up to 35% of energy can be purchased from external sources.’ (Source: <a href="https://www.consilium.europa.eu/en/press/press-releases/2024/01/29/urban-wastewater-council-and-parliament-reach-a-deal-on-new-rules-for-more-efficient-treatment-and-monitoring/" target="_blank" rel="noreferrer noopener">https://www.consilium.europa.eu/en/press/press-releases/2024/01/29/urban-wastewater-council-and-parliament-reach-a-deal-on-new-rules-for-more-efficient-treatment-and-monitoring/</a>).</pre> <p>And the capabilities of these digital twins continue to evolve. One example is the recent introduction of the Optimised Plant module that is part of DHI’s <a href="https://www.dhigroup.com/technologies/twinplant" target="_blank" rel="noreferrer noopener">TwinPlant</a>. This module addresses the intricacies of aeration systems within wastewater treatment plants, offering operators data-backed advice on optimal settings to minimise energy consumption, reduce carbon footprint and lower operational costs. Previous research from DHI suggests that ‘energy optimisation of WWTPs can reduce the total CO2e emissions from the global wastewater treatment sector by up to 20%, while providing cost savings of 24 billion EUR per year.’ The aeration process can account for up to 60% of energy consumption in wastewater treatment, so major savings can be harvested by improving the aeration process alone.</p> <h2 class="wp-block-heading">How to optimise the aeration process for reduced energy consumption</h2> <p>The Optimised Plant is a cloud-based application that optimises the aeration controllers in WWTPs. Building on TwinPlant’s digital twin capabilities, it uses real-time sensor and forecast data and a process model to automatically determine optimal controller settings. By optimising the aeration process through continuous fine-tuning of set-points and PID settings, operators can reduce the power consumption of blowers up to 30%, which alone can reduce the overall power consumption of a WWTP up to 20%, drastically reducing costs as well as carbon footprint. For a medium-sized WWTP, the Optimised Plant can potentially reduce emissions by up to 100 t CO2 per year.</p> <p>Digital solutions will play an increasingly critical role in helping WWTPs reach targets on efficiency and energy neutrality in the future. And digital twins will be an indispensable part of this future.</p> </div> <div class="post-tags"><a href="https://blog.dhigroup.com/tag/digital-twins/" rel="tag">digital twins</a><a href="https://blog.dhigroup.com/tag/urban-water/" rel="tag">urban water</a><a href="https://blog.dhigroup.com/tag/wastewater-treatment/" rel="tag">Wastewater treatment</a></div> <div class="post-author"> <a class="avatar" href="https://blog.dhigroup.com/author/fapodhigroup-com/"> <img data-del="avatar" src='https://blog.dhigroup.com/wp-content/uploads/2024/03/DHIFabioPolesel-cropped-round-150x150.jpg' class='avatar pp-user-avatar avatar-100 photo ' height='100' width='100'/> </a> <h4 class="title"><a href="https://blog.dhigroup.com/author/fapodhigroup-com/">Fabio Polesel, Wastewater Engineer</a></h4> <div class="post-author-description"> <p>Fabio Polesel is a wastewater engineer at DHI. He has extensive expertise in process modelling of wastewater treatment systems, gained through his MSc and PhD at Universitá degli Studi di Padova (Italy) and Technical University of Denmark (DTU) as well as through his professional experience at DHI. </p> <p>His focus areas at DHI include modelling and optimisation of wastewater treatment plants, digital twins and removal of emerging contaminants. As product owner of TwinPlant, he is fostering the contribution of digital twin technologies in addressing the most pressing challenges of water utilities, including increasing energy efficiency and reducing the carbon footprint of wastewater treatment plants.</p> </div> </div> <div class="related-posts"> <p class="related-posts-title">Read Next →</p> <div class="row"> <a class="related-post" href="https://blog.dhigroup.com/digital-twins-in-the-water-sector-what-are-they-and-how-do-we-get-there/"> <img width="400" height="160" src="https://blog.dhigroup.com/wp-content/uploads/2023/03/AdobeStock_128564039-400x160.jpeg" class="attachment-post-image-thumb size-post-image-thumb wp-post-image" alt="" decoding="async" loading="lazy" srcset="https://blog.dhigroup.com/wp-content/uploads/2023/03/AdobeStock_128564039-400x160.jpeg 400w, https://blog.dhigroup.com/wp-content/uploads/2023/03/AdobeStock_128564039-300x120.jpeg 300w, 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