چکیده مقاله
Purpose: Poly and perfluoroalkyl substances PFAS are widely used in industrial and consumer products, leading to their continuous entry into wastewater streams Consequently, wastewater treatment plants WWTPs have become major pathways for PFAS release into the environment Although many studies have examined PFAS behavior in WWTPs, limited attention has been paid to their distribution, transformation, and persistence in sludge Methods: A systematic review of peer reviewed studies was conducted to synthesize current knowledge on PFAS occurrence, fate, and transport within sludge The review focused on identifying biological and physicochemical factors influencing PFAS transformation and adsorption processes in WWTPs Results: Findings indicate considerable variability in PFAS concentrations across treatment plants, largely influenced by aqueous to solid partitioning behavior Sludge from wastewater containing higher PFOS and PFOA levels typically exhibits elevated PFAS accumulation Biological pathways, including cytochrome P450 monooxygenase activity, transamination, and beta oxidation, appear to play roles in PFAS biotransformation, though precursor specific effects remain unclear Conclusion: Overall, the review highlights the complex interplay between chemical structure, biological activity, and wastewater composition in determining PFAS behavior in biosolids Understanding these interactions is essential for developing effective management strategies to mitigate PFAS persistence and environmental release from WWTPs
کلیدواژهها
نویسندگان
Ali Behnami
Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
Mahnoush Malekzadeh
Office of Waste Management Organization, Municipality of Boroujerd, Boroujerd, Iran
Ali Abdolahnejad
Department of Environmental Health Engineering, Maragheh University of Medical Sciences, Maragheh, Iran
Mitra Gholami
Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
Mojtaba Pourakbar
Department of Environmental Health Engineering, Maragheh University of Medical Sciences, Maragheh, Iran
شیوه ارجاع
Behnami, Ali and Malekzadeh, Mahnoush and Abdolahnejad, Ali and Gholami, Mitra and Pourakbar, Mojtaba,1404,Biosolids as a key pathway for the release of poly- and perfluoroalkyl substances (PFAS) from wastewater treatment plants into the environment,The 3rd National Conference on Environmental Challenges: The role of industry, mining, and society in developing green governance,Tehran
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مجموعه مقالات سومین کنفرانس و نمایشگاه ملی چالش های محیط زیستی: نقش صنعت، معدن و جامعه در گسترش حکمرانی سبز19 آبان 1404 · تهران