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Characterization of non-volatile organic contaminants in coking wastewater using non-target screening: Dominance of nitrogen, sulfur, and oxygen-containing compounds in biological effluents
Zang, Lijie; Wan, Yi; Zhang, Haifeng; Zhang, Yu; Gao, Yingxin; He, Yupeng; Hu, Jianying; Kang, Yuehui; Cao, Dong; Yang, Min
2022-09-01
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume837Issue:0Pages:155768
AbstractWhile abundant volatile compounds (VOCs) have been identified in coking wastewater, the structures and occurrence of non-volatile organic compounds (non-VOCs) have remained unknown. In this study, 3966 non-VOCs belonging to 24 groups were tentatively identified for the first time in wastewater from four biological coking wastewater treatment systems in northern China using a non-target screening technique. A total of 227 compounds with CHNO, CHO, CHOS, and CHNOS elemental compositions were assigned with level 2 identification confidence, and 19 of them were con-firmed with authentic standards, with 9-methyl-9H-carbazole-3-carbaldehyde (1706.3-2032.7 mu g/L) and 3-Indolyl acetic acid monomethyl terephthalate (773.7-1449.9 mu g/L) as the top two compounds in the influents, and 9-methyl-9H-carbazole-3-carbaldehyde (31.8-130.1 mu g/L) and monomethyl terephthalate (13.9-196.6 mu g/L) as the top two in the effluents. The four groups of substances accounted for 93.4% and 71.5% of the total responses of tenta-tively identified compounds in the influents and biological effluents, respectively, and were estimated to contribute 32.3-48.9% of the chemical oxygen demand in the biological effluents. In comparison with those in the influent, abun-dant S-containing compounds (CHOS and CHNOS, 35.2% of the total responses) were observed in the biological efflu-ents, suggesting their highly bio-refractory characteristics. The advanced treatment process using synchronized oxidation-adsorption could almost completely remove the CHOS and CHNOS compounds from the biological effluents.
Department环境化学与生态毒理学国家重点实验室 ; 环境化学与生态毒理学国家重点实验室
KeywordPOLYCYCLIC AROMATIC-HYDROCARBONS TRANSFORMATION PRODUCTS ENHANCED TREATMENT FENTON OXIDATION REMOVAL POLLUTANTS PAHS IDENTIFICATION OPTIMIZATION FATE
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/47485
Collection环境化学与生态毒理学国家重点实验室
Corresponding AuthorYang, Min
Affiliation1.Chinese Acad Sci, Natl Engn Res Ctr Ind Wastewater Detoxicat & Resou, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
2.Peking Univ, Coll Urban & Environm Sci, Lab Earth Surface Proc, Beijing 100871, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China
Recommended Citation
GB/T 7714
Zang, Lijie,Wan, Yi,Zhang, Haifeng,et al. Characterization of non-volatile organic contaminants in coking wastewater using non-target screening: Dominance of nitrogen, sulfur, and oxygen-containing compounds in biological effluents[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,837(0):155768.
APA Zang, Lijie.,Wan, Yi.,Zhang, Haifeng.,Zhang, Yu.,Gao, Yingxin.,...&Yang, Min.(2022).Characterization of non-volatile organic contaminants in coking wastewater using non-target screening: Dominance of nitrogen, sulfur, and oxygen-containing compounds in biological effluents.SCIENCE OF THE TOTAL ENVIRONMENT,837(0),155768.
MLA Zang, Lijie,et al."Characterization of non-volatile organic contaminants in coking wastewater using non-target screening: Dominance of nitrogen, sulfur, and oxygen-containing compounds in biological effluents".SCIENCE OF THE TOTAL ENVIRONMENT 837.0(2022):155768.
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