Scholarlink

<p>This systematic review and meta-analysis evaluate the occurrence of per- and polyfluoroalkyl substances (PFAS) in wastewater treatment plants (WWTPs) based on 65 studies conducted across 23 countries from 2014 to 2024. The majority of studies were from developed countries, including China, the United States, and Australia, while data from developing nations remain very few. PFAS were detected in influents, effluents, sludge, and biosolids, with PFOA, PFHxA, PFOS, and PFHxS being the most common. Concentrations were higher in WWTPs near industrial sources. In municipal WWTPs, influents ranged from &lt; RL to over 28,000&#xa0;ng/L, while industrial WWTPs ranged from &lt; RL to over 22,000&#xa0;ng/L. Effluents varied from &lt; RL to over 4,000&#xa0;ng/L in municipal WWTPs and &lt; RL to over 40,000&#xa0;ng/L in industrial WWTPs, highlighting industrial discharges as a major source. Municipal and Industrial WWTPs showed poor removal efficiencies for certain PFAS, exacerbating the inadequacies of current treatment method. Advanced treatment technologies such as reverse osmosis (RO) and granular activated carbon (GAC) showed improved removal rates (&gt; 90%) but generated PFAS-concentrated byproducts requiring additional management. Key research gaps identified include limited data from underrepresented regions, understanding of microbial degradation pathways, and long-term environmental implications of emerging PFAS. The review highlights the need for global monitoring, the development of biodegradable PFAS alternatives, and improved treatment technologies. By synthesizing current knowledge, this work provides a valuable resource to inform research, and advance sustainable solutions for addressing PFAS contamination in wastewater systems.</p> Graphical Abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

A Systematic Review and Meta Analysis on the Occurrence of Per-and Polyfluoroalkyl Substances (PFAS) in Wastewater Treatment Plants

  • 期刊论文

  • 发表日期：

    2025年6月27日

查看全文
  • Chichedo I Duru,
  • Samendra P Sherchan

摘要

This systematic review and meta-analysis evaluate the occurrence of per- and polyfluoroalkyl substances (PFAS) in wastewater treatment plants (WWTPs) based on 65 studies conducted across 23 countries from 2014 to 2024. The majority of studies were from developed countries, including China, the United States, and Australia, while data from developing nations remain very few. PFAS were detected in influents, effluents, sludge, and biosolids, with PFOA, PFHxA, PFOS, and PFHxS being the most common. Concentrations were higher in WWTPs near industrial sources. In municipal WWTPs, influents ranged from < RL to over 28,000 ng/L, while industrial WWTPs ranged from < RL to over 22,000 ng/L. Effluents varied from < RL to over 4,000 ng/L in municipal WWTPs and < RL to over 40,000 ng/L in industrial WWTPs, highlighting industrial discharges as a major source. Municipal and Industrial WWTPs showed poor removal efficiencies for certain PFAS, exacerbating the inadequacies of current treatment method. Advanced treatment technologies such as reverse osmosis (RO) and granular activated carbon (GAC) showed improved removal rates (> 90%) but generated PFAS-concentrated byproducts requiring additional management. Key research gaps identified include limited data from underrepresented regions, understanding of microbial degradation pathways, and long-term environmental implications of emerging PFAS. The review highlights the need for global monitoring, the development of biodegradable PFAS alternatives, and improved treatment technologies. By synthesizing current knowledge, this work provides a valuable resource to inform research, and advance sustainable solutions for addressing PFAS contamination in wastewater systems.

Graphical Abstract