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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.
Abstract. This article aims to explore the degradation methods of per- and polyfluoroalkyl compounds (PFASs) in water bodies, and analyze the principles, advantages and disadvantages of different degradation methods and their application effects in different types of water bodies. In view of the wide application, long half-life, high mobility and potential harm to the ecological environment and biological health of PFASs, it is of great significance to study their effective degradation methods. By reviewing the existing literature, this article lists several major PFASs degradation methods, such as photocatalysis, activated carbon adsorption, and advanced oxidation, and compares their performance characteristics, which provides a scientific basis for the control of PFASs pollution in water bodies.
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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.
Photocatalysis and Electro-Oxidation for PFAS Degradation: Mechanisms, Performance, and Energy Efficiency
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Heterogeneous photocatalysis and electrochemical oxidation—particularly using BDD anodes and Ti4O7 membranes—achieve near-complete PFAS degradation, with solar-driven systems offering environmental benefits despite higher energy requirements. PFAS and microplastics are co-contaminants that often travel together in water systems and share chemical resistance to conventional treatment, making these advanced oxidation findings directly applicable to combined remediation strategies.
Global Occurrence, Health Risks, and Treatment Challenges of PFAS in Wastewater: Prospects for Photocatalytic Membrane Technologies
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Per- and polyfluoroalkyl substances (PFAS) resist conventional wastewater treatment and persist globally in aquatic environments, with monitoring and removal data highly variable across regions and methods. Photocatalytic membrane technologies show promise as a cost-credible, destructive treatment approach that improves catalyst reusability and degradation efficiency at scale.
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.
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.
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