School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangzhou 510006, PR China.
School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangzhou 510006, PR China.
Sci Total Environ. 2019 Mar 20;657:696-703. doi: 10.1016/j.scitotenv.2018.12.008. Epub 2018 Dec 4.
This work investigated the biotoxicity and the residual dissolved organic matter (DOM) of the effluents from nine typical full-scale textile plants located at Pearl River Delta (PRD) in Guangdong province, China. The fluorescence regional integration (FRI) analysis showed that the tryptophan-like (II), soluble microbial product-like (IV) and fulvic acid-like substances (III) were the dominant compounds in the DOM. The acute toxicity test showed toxic effects still remained in most textile effluents, which might attribute to the undegraded dyes or aromatic compounds. Combining with the results from multiple methods, it indicated that the selected nine textile wastewater treatment plants (tWWTPs) all contained some residual micro organic pollutants in their effluents, and the residual benzene-derived products or aromatic amines were probably the toxicity-causing substances. Both ozonization and membrane filtration were capable of further decreasing the content of residual DOM, but by comprehensively considering the effects of removing DOM and biotoxicity, membrane filtration was better than ozonization.
本研究调查了位于中国广东省珠江三角洲（PRD）的 9 家典型纺织厂的废水的生物毒性和残留溶解性有机物（DOM）。荧光区域积分（FRI）分析表明，DOM 中主要的化合物包括色氨酸类（II）、可溶性微生物产物类（IV）和富里酸类物质（III）。急性毒性试验表明，大多数纺织废水中仍存在毒性作用，这可能归因于未降解的染料或芳香族化合物。结合多种方法的结果表明，所选的 9 家纺织废水处理厂（tWWTPs）的废水中都含有一些残留的微量有机污染物，残留的苯衍生产物或芳香胺可能是毒性物质。臭氧氧化和膜过滤都能进一步降低残留 DOM 的含量，但综合考虑去除 DOM 和生物毒性的效果，膜过滤优于臭氧氧化。
