文章基本信息

标题：Sustainable Proposal for Regulating Organophosphate Pesticides in Wastewater Treatment Plants in South Korea
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作者：Ryu, Hong-Duck ; Han, Hyeyeol ; Park, Ji-Hyoung 等
期刊名称：Sustainability
印刷版ISSN：2071-1050
出版年度：2022
卷号：14
期号：19
页码：1-12
DOI：10.3390/su141911979
语种：English
出版社：MDPI, Open Access Journal
摘要：Organophosphate pesticides (OPs) are highly toxic; their presence in surface waters is a matter of great concern. To the best of our knowledge, OPs in wastewater from agrochemical manufacturing facilities (AMFs) and influents and effluents from agrochemical wastewater treatment plants (AWWTPs) have not been previously investigated. Therefore, we investigated the presence of 8 OPs (5 of which are regulated under the Water Environment Conservation Act (WECA)) in 15 AMFs and 13 AWWTPs detected through surface water monitoring and proposed measures for effectively regulating these OPs in AWWTPs. Five OPs (chlorpyrifos, diazinon, dichlorvos, EPN, and fenitrothion) were detected in the AMF and AWWTP influents; three (methyldemeton, parathion, and phenthoate) were not. Of the five detected OPs, chlorpyrifos, dichlorvos, and fenitrothion are not currently regulated via effluent limitations for WWTPs under WECA; thus, additional regulations are required. The most effective process configuration for the removal of these OPs was biological treatment through activated sludge processes, followed by activated carbon adsorption. In the system, 100% OP removal from the AWWTP influents was observed. This treatment technology can be implemented in AWWTPs to minimize the presence of OPs in surface waters, thereby protecting human health and aquatic life.
关键词：organophosphate pesticide; surface water; agrochemical wastewater; wastewater treatment plant; effluent limitations; activated sludge process; activated carbon adsorption