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Circular economy approaches for water reuse and emerging contaminant mitigation: innovations in water treatment

Environment Development and Sustainability 2023 21 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Saumya Das, Chandra Kant Singh, Kushneet Kaur Sodhi, Vandana Kumari Singh

Summary

This review examines advanced treatment processes — including photocatalysis, membrane filtration, and electrochemical methods — for removing emerging contaminants like microplastics, pharmaceuticals, and personal care products from water, while integrating circular economy principles such as energy and nutrient recovery. It establishes that conventional water treatment is insufficient for microplastic removal and that resource-recovery frameworks are needed to make advanced treatment both effective and economically viable.

Study Type Environmental

Water scarcity and the presence of emerging contaminants (ECs) pose significant challenges to sustainable water management. Because of the potential harm to human beings and the environment, the presence of new contaminants in water sources, such as medications, personal care products, and microplastics, has received a lot of attention in recent years. This article examines the present level of knowledge about developing pollutants and the different water treatment procedures used to reduce their prevalence. Because of their complicated nature and low concentrations, standard treatment procedures usually utilized to remove ECs frequently fall short of efficiently eliminating ECs. To address these challenges, the article focuses on advanced treatment processes that have shown promise in removing ECs from water sources. In addition, the study delves into the notion of circular economy in water treatment, which seeks to maximize resource efficiency while minimizing waste output. It emphasizes creative ways that match with circular economy ideas, such as recovering useful resources from wastewater (e.g., energy, nutrients) and integrating water treatment systems with other industrial processes. This article seeks to provide insights and guidance for policymakers, researchers, and practitioners involved in sustainable water management by comprehensively examining current research and advancements in water treatment processes for ECs and their integration into circular economy principles.

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