Understanding energy performance in drinking water treatment plants using the efficiency analysis tree approach

npj Clean Water, Journal Year: 2024, Volume and Issue: 7(1)

Published: Feb. 29, 2024

Abstract Water treatment processes are known to consume substantial amounts of energy, making it crucial understand their efficiency, drivers, and potential energy savings. In this study, we apply Efficiency Analysis Tree (EAT), which combines machine learning linear programming techniques assess the performance 146 Chilean drinking water plants (DWTPs) for 2020. Additionally, utilize bootstrap regression examine influence operating characteristics on efficiency. The results indicate that evaluated DWTPs exhibited poor performance, with an average efficiency score 0.197. estimated savings were found be 0.005 kWh/m 3 . Several factors, such as age facility, source raw water, technology, identified significant drivers in DWTPs. insights gained from our study can valuable policymakers informed decisions regarding adoption practices promote efficient sustainable use within cycle.

Language: Английский

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An Opportunity for Synergizing Desalination by Membrane Distillation Assisted Reverse‐Electrodialysis for Water/Energy Recovery

The Chemical Record, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 17, 2024

Abstract Industry, agriculture, and a growing population all have major impact on the scarcity of clean‐water. Desalinating or purifying contaminated water for human use is crucial. The combination thermal membrane systems can outperform conventional desalination with help synergistic management water‐energy nexus. High energy requirement key challenge cost its commercial feasibility. solution to these problems requires intermarriage multidisciplinary approaches such as electrochemistry, chemical, environmental, polymer, materials science engineering. most feasible method producing high‐quality freshwater reduced carbon footprint demanding incorporation industrial low‐grade heat distillation (MD). More precisely, by using reverse electrodialysis (RED) setup that integrated MD, salinity gradient (SGE) may be extracted from highly salinized MD retentate. Integrating MD‐RED significantly increase productivity without raising costs. This review provides comprehensive summary prospects, unresolved issues, developments in this cutting‐edge field. In addition, we summarize distinct physicochemical characteristics membranes employed RED, together integrating them facilitate effective recovery conversion salt gradients freshwater.

Language: Английский

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Innovation ARIMA models application to predict pressure variations in water supply networks with open-loop control. Case study in Noja (Cantabria, Spain)

Energy Nexus, Journal Year: 2025, Volume and Issue: unknown, P. 100423 - 100423

Published: April 1, 2025

Language: Английский

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A Policy Toolbox for Aging Water Infrastructure

Water, Journal Year: 2025, Volume and Issue: 17(9), P. 1277 - 1277

Published: April 25, 2025

Aging infrastructure poses challenges to water and wastewater systems worldwide, yet solutions often focus narrowly on capital projects. We argue for a broader approach, emphasizing the role of classic policy tools—authority, incentives, symbolism, capacity building, learning. With such tools, governments organizations can influence management practices user behavior, thereby extending lifespan existing infrastructure. highlight need view issues as behavior problems, advocating policy-driven strategies complement traditional solutions.

Language: Английский

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Key directions and global practices of efficiency and reliability improvement of water supply

Deleted Journal, Journal Year: 2024, Volume and Issue: 1, P. 82 - 98

Published: March 26, 2024

The article reviews modern research and practical developments in the field of increasing efficiency reliability water supply systems. analysis covers both micro level, which includes optimizing opera-tion individual components system, macro related to management optimization system as a whole. Particular attention is paid improving pumping units, leaks pressure losses management, well treatment processes optimization. At presents review strategies for optimal distribution between intakes, study zones intakes influence on hydraulic network, dynamic planning power consump-tion stations. importance monitoring diagnostics systems emphasized. Key areas current problems are identified, promising approaches urban proposed

Language: Английский

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The increasing energy intensity of drinking water supply

Energy Reports, Journal Year: 2024, Volume and Issue: 11, P. 6233 - 6237

Published: June 1, 2024

Supplying water to cities is an energy-intensive activity, but few longitudinal studies exist of utilities' energy intensity (energy use per unit volume). Using t-tests and regression on public records from the state Wisconsin, USA, we analyze over 500 drinking performance 2001 2020. This first long-term panel analysis its kind. The annual data show has increased by 12 % in large, 8 medium, 28 small utilities. large utilities remain least intensive (0.49 kWh/m³ as 2020, compared 0.53 0.67 for medium utilities), ones have diverged most other two. At same trajectory, will increase another 27 systems 2040. Our demonstrates economies scale, highlights disadvantages utilities, confirms predictions that services would become more intensive. It motivates sustainability coupled infrastructure emphasizes responsible natural resources.

Language: Английский

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Energy management in the water sector: A policy statement review

Water Environment Research, Journal Year: 2023, Volume and Issue: 95(12)

Published: Dec. 1, 2023

Water and wastewater utilities consume significant energy. While they are regulated on water quality other environmental issues, energy management is largely optional. In between enforceable public policy voluntary internal action, professional associations can influence their industries to act. this perspective article, we discuss 10 statements from three in the sector how support management. few of directly address management, conclude that justify it terms ethics, sustainability, affordability, asset Still, disparate nature exposes a gap. We recommend develop definitive subject clarify positions set expectations. PRACTITIONER POINTS: Water/wastewater use but not for absence policy, action. ASCE, AWWA, WEF industry. The indirectly leave developing specifically topic.

Language: Английский

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Economy of Scale of Energy Intensity in Aquifer Storage and Recovery (ASR)

Water, Journal Year: 2024, Volume and Issue: 16(3), P. 503 - 503

Published: Feb. 4, 2024

More water utilities are adopting aquifer storage and recovery (ASR) to balance long-term supply demand. Due large implementation operation costs, ASR projects need be optimized, particularly for energy use, which is a major operating expense. This study examines the relationships among recharge, at two in western United States. The finding an economy of scale processes, but not gravity-fed recharge processes. found as follows: intensity recovered decreases with volume. suggests it more energy-efficient recover volumes one interval instead recovering smaller frequent intervals. H2Oaks process experienced 78% decrease from 0 50,000 m3 recovered, while Sand Hollow site 43% recovered. Statistical analyses showed p values lower than 0.0001, R2 between 0.43 0.57, RMSE value 0.55 2.1, indicating presence moderate correlation has been observed multiple instances wastewater treatment. only applications also all or wells, whether they paired each other. Furthermore, this confirms reliable accessible data fully understand implications energy–water nexus.

Language: Английский

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Intelligent Aeration Amount Prediction Control for Wastewater Treatment Process Based on Recurrent Neural Network

Journal of the Franklin Institute, Journal Year: 2024, Volume and Issue: unknown, P. 107276 - 107276

Published: Sept. 1, 2024

Language: Английский

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Understanding water-energy-carbon nexus in English and Welsh water industry by assessing eco-productivity of water companies

npj Clean Water, Journal Year: 2024, Volume and Issue: 7(1)

Published: Nov. 28, 2024

Understanding the water-energy-carbon nexus in water supply is essential for regulators and utilities. This study employs a non-radial Data Envelopment Analysis (DEA) model to assess eco-productivity (ecoP) change, synthetic indicator that integrates carbon emissions, energy costs, delivered. It also evaluates its components—eco-efficiency change eco-technological change—across companies England Wales from 2011 2018. The analysis reveals an annual improvement ecoP of 1.1%, driven by 2.1% gain eco-efficiency but offset 1.0% decline technological advancement. reduction GHG emissions emerged as most significant positive contributor, enhancing 3.22% annually, while costs detracted –0.09%. results underscore negative impacts increased delivery (–1.74%) number connected properties (–1.27%) on ecoP, highlighting need demand management policies.

Language: Английский

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