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61,005 resultsShowing papers similar to Water reuse: a pillar of the circular water economy
ClearCircular Economy in Wastewater Treatment Plant—Water, Energy and Raw Materials Recovery
This review proposes a conceptual framework for future wastewater treatment plants operating as resource recovery facilities within a circular economy, focusing on technologies for recovering water, energy, and raw materials including nutrients and biopolymers.
Removal of microplastics from wastewater: available techniques and way forward
This review surveys available techniques for removing microplastics from wastewater within a circular economy framework, discussing innovative treatment technologies, integrated risk-based approaches, and regulatory and economic guidelines needed to advance water resource recovery facilities beyond conventional pollutant removal.
Wastewater and sludge valorisation: a novel approach for treatment and resource recovery to achieve circular economy concept
This review highlights novel approaches for wastewater and sludge valorisation within a circular economy framework, focusing on recovering value-added products including biopolymers, nutrients, and energy to achieve sustainable development goals and combat water scarcity.
Water circularity index: A novel approach for authorities and operators
This paper proposes a novel water circularity index that evaluates both quantity and quality dimensions of water use across an entire usage cycle, going beyond traditional single-metric efficiency frameworks. The index is intended to help water authorities and operators assess and optimize the circular use of water resources in integrated systems.
AI Applied to the Circular Economy: An Approach in the Wastewater Sector
This review explored how artificial intelligence can be applied to circular economy objectives in the wastewater sector, examining AI-driven approaches for optimizing water treatment, resource recovery, and system efficiency. The paper identified opportunities and challenges for integrating machine learning into water utility operations within an ecological transition framework.
Wastewater Valorization: Practice around the World at Pilot- and Full-Scale
This review summarizes pilot- and full-scale wastewater valorization practices globally, focusing on how water resource recovery facilities recover nutrients, energy, and bio-based materials from sewage and sludge to contribute to a circular economy. The authors identify effective technological strategies that are being implemented or scaled up worldwide.
Emerging Pollutants in Wastewater: A Challenge for Water Reuse
This review examines emerging pollutants in wastewater as a central challenge for water reuse strategies, covering contaminants present at both domestic and industrial scales. It evaluates the sustainability benefits and treatment hurdles associated with recycling wastewater to address global water scarcity.
A Critical Review of Water Reuse: Lessons from Prehistoric Greece for Present and Future Challenges
This review traces the history of water reuse practices from ancient Greece to modern times, highlighting how early civilizations already understood the value of treating and repurposing wastewater. Researchers compare historical approaches with current advanced technologies including membrane filtration and direct potable reuse systems. The study argues that lessons from antiquity can inform contemporary water management strategies, particularly as growing populations and climate change put increasing pressure on freshwater resources.
Editorial: Emerging approaches for sustainable management for wastewater
This editorial introduces a research collection on emerging approaches for sustainable wastewater management, highlighting advances in nutrient recovery, contaminant removal, and resource valorisation within circular economy frameworks.
Insights into Global Water Reuse Opportunities
This review examines global opportunities and challenges for reusing treated wastewater, which is becoming increasingly important as water scarcity worsens worldwide. A key concern discussed is that recycled water may contain emerging contaminants including microplastics that current treatment methods do not fully remove. The findings highlight the need for advanced treatment technologies to ensure that water reuse does not become a pathway for microplastic exposure in communities.
Revolutionizing Wastewater Reuse: A Critical Review of Innovative Treatment Technologies for a Sustainable Energy-Water Nexus
This review critically examines innovative wastewater treatment technologies for sustainable reuse, covering advances in membrane filtration, electrochemical processes, advanced oxidation, and emerging contaminant removal including microplastics, in the context of addressing global water scarcity.
Microplastics pollution from wastewater treatment plants: A critical review on challenges, detection, sustainable removal techniques and circular economy
This review critically examines the challenges of detecting and removing microplastics from wastewater treatment plants, evaluating sustainable removal technologies and circular economy approaches to address this persistent source of aquatic microplastic pollution.
The Treatment of Wastewater, Recycling and Reuse - Past, Present, and in the Future
This chapter provides a comprehensive overview of wastewater treatment evolution, from early disposal practices to modern recycling and reuse technologies. Researchers discuss how advanced treatment methods address emerging contaminants including microplastics and pharmaceutical residues. The study emphasizes the importance of water reuse strategies for mitigating global water scarcity and reducing environmental pollution.
Unlocking the Potential of Reclaimed Water: Analysis of the Challenges and Market Size as a Strategic Solution for Water Scarcity in Europe
This study examines the market potential and challenges for reclaimed water as a solution to water scarcity in Europe, assessing regulatory frameworks, treatment technology gaps, and reuse applications. It identifies microplastics and pharmaceuticals as key contaminants of concern in reclaimed water and discusses standardisation needs.
Potential Effects and Removal Strategies for Contaminants of Emerging Concern (CECs) in the Circular Economy of Water
This review examines contaminants of emerging concern in water systems, including microplastics, pharmaceuticals, and endocrine disruptors, summarizing their occurrence, potential health effects, and the treatment technologies available for their removal.
AI-based wastewater treatment for a circular economy and sustainable management of PFAS, heavy metals, microplastics, and antibiotics
This review examined how artificial intelligence can be integrated into wastewater treatment systems to improve removal of emerging contaminants including PFAS, heavy metals, microplastics, and antibiotics. The authors conclude that AI-driven optimization offers significant potential for a circular economy approach to water treatment.
A systematic review of industrial wastewater management: Evaluating challenges and enablers
This systematic review of 66 studies on industrial wastewater management found that while treatment technologies are advancing, major challenges remain in regulation enforcement, cost-effectiveness, and integration of circular economy principles. The research highlights that inadequate industrial wastewater treatment is a significant source of environmental pollutants, including microplastics, entering waterways.
Redefining Water Treatment: Identification of WWTPs as an Earth System Problem and Circular Economic Eco-Bog System to Challenge It
This paper argues that wastewater treatment plants should be reconceptualized as Earth system problems rather than isolated infrastructure, because the daily discharge of microplastics and other contaminants creates complex, poorly understood ecological effects at a planetary scale.
A nanotechnology roadmap for circular wastewater management
This review paper summarizes research on using tiny particles called nanoparticles to make wastewater treatment more efficient and environmentally friendly. The technology could help clean water while also recovering valuable materials like nutrients and energy, but scientists still need to solve problems like how to use it safely on a large scale. Better wastewater treatment matters for human health because it helps ensure our water supply stays clean and reduces pollution in the environment.
The Importance of Nonconventional Water Resources under Water Scarcity
This review explores the importance of nonconventional water resources, such as treated wastewater, desalinated water, and harvested rainwater, in addressing growing global water scarcity. Researchers found that these alternative sources are becoming increasingly vital as climate change and population growth strain traditional supplies. The study highlights how expanding the use of nonconventional water can help build a more sustainable water future.
The Future of Municipal Wastewater Reuse Concentrate Management: Drivers, Challenges, and Opportunities
This review examines the growing challenge of managing concentrated waste streams produced when municipal wastewater is treated for reuse using reverse osmosis. These concentrates contain elevated levels of dissolved solids, metals, nutrients, and micropollutants that have passed through conventional treatment. The study discusses disposal options, monitoring needs, and emerging opportunities for recovering valuable resources from these waste streams.
Redefining Ecological Engineering in the Context of Circular Economy and Sustainable Development
This conceptual paper proposed a redefined framework for ecological engineering grounded in circular economy principles, arguing that engineering interventions in natural systems should aim to close material loops and enhance ecosystem services rather than simply solving pollution problems after the fact.
Modern Wastewater Treatment Technologies: Trends, Problems, and Prospects
This review examines modern wastewater treatment technologies including mechanical, biological, and physicochemical methods, highlighting that conventional systems inadequately remove emerging micropollutants such as pharmaceuticals, pesticides, microplastics, and nanoparticles. The authors identify key barriers to progress including high costs, aging infrastructure, and weak governance, and advocate for integrated approaches combining membrane technologies, nanomaterials, and circular economy principles.
Unlocking the circular economy potential of spent dialysate in hemodialysis
This review examines the waste stream produced by kidney dialysis machines — called spent dialysate — and finds it contains microplastics alongside other contaminants like PFAS and antibiotic resistance genes. The paper explores whether advanced filtration technologies could treat this waste and recover useful resources like water and nutrients rather than simply disposing of it. The presence of microplastics in dialysate is particularly relevant because dialysis patients are exposed to large volumes of processed water, raising questions about contamination pathways.