Natural engineering approaches for the removal of per- and poly-fluoroalkyl substances from aquatic environment: A review

IF 4.9 Q2 ENGINEERING, ENVIRONMENTAL

Groundwater for Sustainable Development Pub Date : 2025-05-12 DOI:10.1016/j.gsd.2025.101465

Monali Priyadarshini , Azhan Ahmad , Mohd Salim Mahtab , Saif Ullah Khan , Izharul Haq Farooqi , Norma Pérez

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引用次数: 0

Abstract

Per-and poly-fluoroalkyl substances (PFAS) are a family of fluorinated artificial chemicals manufactured substantially for commercial and industrial uses in recent decades due to their remarkable hydrophobicity and stability. The PFAS contains numerous carbon-fluorine linkages, making them highly resilient to chemical and biological destruction. Conventional water and wastewater treatment plants do not effectively remove PFAS; as a result, PFAS make their way to aquatic ecosystems. Significant attempts have been made in the past few years to develop efficient techniques for removing PFAS. For instance, methods such as thermal treatment, adsorption, filtration, chemical oxidation, and reduction have significant drawbacks, including high cost, excessive use of energy, and unsuitable for in-situ treatment. The current review emphasized the suitability of natural engineering techniques, such as fungal and algae degradation, microbial bioremediation, constructed wetlands, bio-electrochemical techniques, and green adsorption methods for removing PFAS. This review covers the specific mechanism, removal efficiency, and pros and cons of each technology. A thorough economic analysis and the pilot-scale investigations are also presented at the end. Further details regarding the existing obstacles to the field's implementation along with future research directions for each technology, are provided. Overall, this paper provides an in-depth and up-to-date review for industry experts and researchers in this field that could facilitate easy access to knowledge and valuable insights into research possibilities.

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从水生环境中去除单氟烷基和多氟烷基物质的自然工程方法：综述

全氟烷基和聚氟烷基物质（PFAS）是一类含氟人工化学品，由于其卓越的疏水性和稳定性，近几十年来主要用于商业和工业用途。PFAS含有大量的碳氟键，使它们对化学和生物破坏具有高度的弹性。传统的水和废水处理厂不能有效地去除PFAS；结果，PFAS进入了水生生态系统。在过去几年中，为开发去除PFAS的有效技术进行了重大尝试。例如，热处理、吸附、过滤、化学氧化、还原等方法存在成本高、能耗大、不适合原位处理等明显缺陷。目前的综述强调了自然工程技术的适用性，如真菌和藻类降解、微生物生物修复、人工湿地、生物电化学技术和绿色吸附法去除PFAS。本文综述了每种技术的具体机理、去除效率和优缺点。最后还进行了全面的经济分析和中试调查。提供了有关该领域实施的现有障碍以及每种技术未来研究方向的进一步细节。总体而言，本文为该领域的行业专家和研究人员提供了深入和最新的综述，可以方便地获取知识和有价值的见解，以研究可能性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Groundwater for Sustainable Development Social Sciences-Geography, Planning and Development

CiteScore

11.50

自引率

10.20%

发文量

152

期刊介绍： Groundwater for Sustainable Development is directed to different stakeholders and professionals, including government and non-governmental organizations, international funding agencies, universities, public water institutions, public health and other public/private sector professionals, and other relevant institutions. It is aimed at professionals, academics and students in the fields of disciplines such as: groundwater and its connection to surface hydrology and environment, soil sciences, engineering, ecology, microbiology, atmospheric sciences, analytical chemistry, hydro-engineering, water technology, environmental ethics, economics, public health, policy, as well as social sciences, legal disciplines, or any other area connected with water issues. The objectives of this journal are to facilitate: • The improvement of effective and sustainable management of water resources across the globe. • The improvement of human access to groundwater resources in adequate quantity and good quality. • The meeting of the increasing demand for drinking and irrigation water needed for food security to contribute to a social and economically sound human development. • The creation of a global inter- and multidisciplinary platform and forum to improve our understanding of groundwater resources and to advocate their effective and sustainable management and protection against contamination. • Interdisciplinary information exchange and to stimulate scientific research in the fields of groundwater related sciences and social and health sciences required to achieve the United Nations Millennium Development Goals for sustainable development.