Polychlorinated Biphenyls in the Centralized Wastewater Treatment Plant in a Chemical Industry Zone: Source, Distribution, and Removal
Joint Authors
Yao, Min
Li, Zhongjian
Zhang, Xingwang
Lei, Lecheng
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-08-04
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Polychlorinated biphenyls (PCBs) could be dissolved in wastewater or adsorbed on particulate.
The fate of PCBs in wastewater is essential to evaluate the feasibility of wastewater treatment processes and the environmental risk.
Here dissolved and adsorbed concentrations of twenty concerned PCB congeners and total PCBs have been measured in the centralized wastewater treatment plant of a chemical industry zone in Zhejiang, China.
It was found that the dyeing chemical processes were the main source of PCBs, which contributed more than 13.6%.
The most abundant PCB was PCB-11 in the liquid and solid phase of each treatment stage, accounting for more than 60% of the total 209 PCBs.
Partitioning behavior of PCBs between the dissolved and adsorbed phases suggested that Di-CBs were the dominant isomers (>70%) and more than 89.8% of them was adsorbed on the particles and sludge.
The total removal efficiency of ∑ 209 PCBs was only 23.2% throughout the whole treatment process.
A weak correlation was obtained between the individual PCB concentration and their log K ow in primary sedimentation, anaerobic hydrolysis, aerobic bioprocess stage, and the whole treatment process.
American Psychological Association (APA)
Yao, Min& Li, Zhongjian& Zhang, Xingwang& Lei, Lecheng. 2014. Polychlorinated Biphenyls in the Centralized Wastewater Treatment Plant in a Chemical Industry Zone: Source, Distribution, and Removal. Journal of Chemistry،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1039947
Modern Language Association (MLA)
Yao, Min…[et al.]. Polychlorinated Biphenyls in the Centralized Wastewater Treatment Plant in a Chemical Industry Zone: Source, Distribution, and Removal. Journal of Chemistry No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-1039947
American Medical Association (AMA)
Yao, Min& Li, Zhongjian& Zhang, Xingwang& Lei, Lecheng. Polychlorinated Biphenyls in the Centralized Wastewater Treatment Plant in a Chemical Industry Zone: Source, Distribution, and Removal. Journal of Chemistry. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1039947
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1039947