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- Title
重庆市垃圾处理厂和污水处理厂中典型环境内分泌干 扰物的排放特征.
- Authors
石运刚; 刘嘉烈; 唐娜; 马艳; 庄僖; 李洁; 郑晶
- Abstract
To investigate the emission characteristics of phenolic environmental estrogens (PEEs) and phthalic acid esters (PAEs) from sewage treatment plants (STPs) and waste treatment plants (WTPs) in Chongqing, and to assess their potential risks to the Yangtze River Basin, the concentrations of 3 PEEs and 16 PAEs in influent and effluent of 3 WTPs and 16 STPs in Chongqing were analyzed, and the ecological risk levels and estrogenic effects in effluent were assessed as well. 3 PEEs and 11 PAEs were detected in the influent and effluent. Highest concentrations of PEEs and PAEs were detected in landfill leachate, with total concentrations ranging from 11.07 〜278.41 (xg<L_1 and 25.83 〜97.17(xg<L_1, respectively; while the lowest was detected in influent of industrial sewage treatment plants, with total concentrations ranging from 0.04 〜13.97(xg<L_1 and 0.14 〜4.69(xg<L_1, respectively. Similar concentrations for PEEs and PAEs were found in the effluent, ranging from 0.05 〜8.96(xg<L_1 and 1.37 〜4.19(±g •L"1, respectively. The average removal rates of 4-tert-octylphenol (4-t-OP) and dinonyl phthalate (DNP) were up to 88% and 95%, respectively. Membrane separation technology were more effective in removing estrogens from waste, while activated sludge and oxidation ditch had lower removal efficiency. Nonylphenol (4-NP) showed the highest ecological risk and estrogenic activity in the effluents, indicating a potential risk to organisms in aquatic environment.
- Subjects
CHONGQING (China); SEWAGE disposal plants; PHTHALATE esters; OXIDATION ditches; XENOESTROGENS; MEMBRANE separation; LANDFILL management
- Publication
Asian Journals of Ecotoxicology, 2022, Vol 17, Issue 3, p189
- ISSN
1673-5897
- Publication type
Article
- DOI
10.7524/AJE.1673-5897.20210322001