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REMOVAL OF POLY- AND PERFLUOROALKYL SUBSTANCES (PFAS) FROM WATER BY ADSORPTION: ROLE OF PFAS CHAIN LENGTH, EFFECT OF ORGANIC MATTER AND CHALLENGES IN ADSORBENT REGENERATION
Gagliano, E., M. Sgroi, P.P.Falciglia, F.G.A.Vagliasindi, and P. Roccaro.
Water Research 171:115381(2020)
Recent studies on long- and short-chain PFAS removal by adsorption were examined to summarize the performance of different adsorbents for both long- and short-chain PFAS, the effect of organic matter, and adsorbent regeneration techniques. Findings indicated that strong anion-exchange resins seem to better remove both long- and short-chain PFAS, but the adsorption capacity of short-chain PFAS is lower and are thus more challenging to remove. The effect of organic matter on PFAS adsorption in water or wastewater under real environmental conditions is generally overlooked. The rapid breakthrough of PFAS is a limiting factor; regeneration of PFAS-exhausted adsorbents is very challenging and requires more research.
Water Research 171:115381(2020)
Recent studies on long- and short-chain PFAS removal by adsorption were examined to summarize the performance of different adsorbents for both long- and short-chain PFAS, the effect of organic matter, and adsorbent regeneration techniques. Findings indicated that strong anion-exchange resins seem to better remove both long- and short-chain PFAS, but the adsorption capacity of short-chain PFAS is lower and are thus more challenging to remove. The effect of organic matter on PFAS adsorption in water or wastewater under real environmental conditions is generally overlooked. The rapid breakthrough of PFAS is a limiting factor; regeneration of PFAS-exhausted adsorbents is very challenging and requires more research.
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