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Leading Techniques for Per- and Polyfluoroalkyl Substances (PFASs) Remediating in Water and Wastewater
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Per- and polyfluoroalkyl substances (PFAS), often called "forever chemicals," are highly persistent contaminants found in water and soil worldwide. This review evaluates the leading remediation techniques available for removing PFAS from contaminated environments, comparing their effectiveness, scalability, and cost. Given PFAS's resistance to natural degradation, engineered removal strategies are essential for protecting drinking water sources and ecosystems.
Per- and polyfluoroalkyl substances (PFASs), a class of synthetic organic compounds since the 1940s, have become widespread and persistent environmental pollutants. Due to their high chemical stability, bioaccumulation potential, and extensive industrial and household applications, PFASs have drawn significant attention from researchers worldwide in recent years, while PFASs have become a hot topic, and the publications are updated very quickly. Various remediation technologies, including adsorption, pyrolysis, biodegradation, and advanced oxidation, have been developed and treated as the leading techniques to mitigate PFAS contamination. Other alternative techniques are foam fractionation, constructed wetland, and piezoelectric ball milling. However, the effectiveness of these methods varies depending on their reaction mechanisms, operational conditions, and environmental factors. This review provides a comprehensive summary of the latest advancements in PFASs removal strategies, highlighting their advantages, limitations, and potential synergies. Furthermore, future research directions and technological developments are discussed to explore more efficient, sustainable, and cost-effective solutions for PFASs remediation.
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A Review of Treatment Techniques for Short-Chain Perfluoroalkyl Substances
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This review evaluates treatment techniques for removing short-chain perfluoroalkyl substances (PFAS) from water, including adsorption, advanced oxidation, and other methods. Researchers found that adsorption was the most widely used and effective approach, capable of handling a broad range of concentrations, though adsorbent regeneration remains a challenge. The study emphasizes the urgent need to improve water treatment technologies as these persistent and mobile chemicals accumulate in the water cycle.
Comparative Study on Degradation Methods of Per- and Polyfluoroalkyl Compounds in Water
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This study reviews and compares methods for degrading per- and polyfluoroalkyl substances (PFAS) in water, examining photocatalysis, activated carbon adsorption, and advanced oxidation processes, finding that each approach has distinct trade-offs in efficacy and applicability depending on the type of water body being treated.
Recent Advancement and Understanding on the “Forever Chemicals”, PFAS in Drinking Water
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This review surveys current analytical detection methods and treatment technologies for PFAS "forever chemicals" in drinking water, highlighting limitations including matrix interference and inconsistent recovery rates, while calling for standardized protocols and innovative removal solutions to better protect public health from these persistent pollutants.
Poly- and per-fluoroalkyl substances in water: Occurrence, analytical methodologies, and remediations strategies: A comprehensive review
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This review comprehensively compiled information on per- and polyfluoroalkyl substances (PFAS) in water, covering their sources, health effects, analytical detection methods, and remediation strategies for removing these persistent contaminants from aquatic environments.
Enhancing PFAS removal: feasibility of an integrated electrocoagulation and adsorptive membrane approach
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This review examines the potential of combining electrocoagulation with adsorptive membrane filtration as a tandem system for removing per- and polyfluoroalkyl substances (PFAS) from water, noting that the two technologies complement each other by targeting different chain lengths of these persistent chemicals. The integrated approach shows promise for high removal efficiency while also potentially degrading PFAS rather than merely concentrating them.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.