Removal Technologies for Perfluoro-and Polyfluoroalkyl Substances (PFAS) Based on Literature Review: Progress, Comparisons, and Prospects_Vol. 3 No. 2 (JSSE 2026)_Journal of Safety Science and Engineering (ISSN: 3005-5814)

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Removal Technologies for Perfluoro-and Polyfluoroalkyl Substances (PFAS) Based on Literature Review: Progress, Comparisons, and Prospects

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DOI: https://doi.org/10.62517/jsse.202608203

Author(s)

Haoyi Qi

Affiliation(s)

Hebei Environmental Engineering College, Shijiazhuang, Hebei, China

Abstract

Perfluoro-and polyfluoroalkyl substances (PFAS) exhibit strong chemical stability, bioaccumulation, and multiple toxic effects, making their environmental remediation a global challenge [2]. Through literature thematic mapping, this study categorizes existing research into four types: core removal mechanism studies, process optimization and prediction, pollution characteristics and risks in specific environmental media, and PFAS toxicology and health risks, clarifying the research background and driving forces. Focusing on the first two categories, an analytical framework is constructed with three core schools: degradation technology, separation technology, and technology empowerment. The framework elaborates on the perspectives, technical principles, and cutting-edge developments of each school. Limitations in current research are identified, including the transition from laboratory to engineering applications, treatment of short-chain PFAS and by-products, integration and evaluation of technologies, and the interpretability of empowerment technologies. Future research should prioritize developing efficient, precise, low-consumption, and non-secondary-pollution intelligent integrated remediation strategies, providing a literature foundation and conceptual framework for PFAS removal technology development and engineering applications.

Keywords

Per-and Polyfluoroalkyl Substances (PFAS); Removal Technologies; Literature Review; Advanced Oxidation Processes (AOPs); Adsorption; Machine Learning (ML); Technology Integration

References

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