Molecular characterization of effluent organic matter in secondary effluent and reclaimed water: Comparison to natural organic matter in source water

被引：50
作者：
Wang, Xin [1 ,2 ]
Wang, Juan [1 ,2 ]
Li, Kuixiao [3 ]
Zhang, Haifeng [1 ,2 ]
Yang, Min [1 ,2 ]
机构：
[1] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Beijing Drainage Grp Co Ltd, Beijing 100084, Peoples R China
来源：
JOURNAL OF ENVIRONMENTAL SCIENCES | 2018年 / 63卷
基金：
中国国家自然科学基金;
关键词：
Secondary effluent; Reclaimed water; Source water; Effluent organic matter; Natural organic matter; FT-ICR MS; RESOLUTION MASS-SPECTROMETRY; WASTE-WATER; TREATMENT PLANTS; PILOT-SCALE; FRACTIONS; PRODUCTS; MEMBRANE; EFOM; FORMULAS; SEWAGE;
D O I：
10.1016/j.jes.2017.03.020
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Municipal wastewater reclamation is becoming of increasing importance in the world to solve the problem of water scarcity. A better understanding of the molecular composition of effluent organic matter (EfOM) in the treated effluents of municipal wastewater treatment plants (WWTPs) is crucial for ensuring the safety of water reuse. In this study, the molecular composition of EfOM in the secondary effluent of a WWTP in Beijing and the reclaimed water further treated with a coagulation-sedimentation-ozonation process were characterized using a non-target Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) method and compared to that of natural organic matter (NOM) in the local source water from a reservoir. It was found that the molecular composition of EfOM in the secondary effluent and reclaimed water was dominated by CHOS formulas, while NOM in the source water was dominated by CHO formulas. The CHO formulas of the three samples had similar origins. Anthropogenic surfactants were responsible for the CHOS formulas in EfOM of the secondary effluent andwere not well removed by the coagulation-sedimentation-ozonation treatment process adopted. (C) 2017 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
引用
收藏
页码：140 / 146
页数：7
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