The presence of perfluorinated compounds (PFCs) in the effluents of a wastewater treatment plant (WWTP) in Beijing was investigated in the current study. Perfluorooctanoate acid and perfluorooctane sulfonate were the predominant PFCs in wastewater, accounting for 19–27% and 18–31%, respectively. The concentrations of PFCs with long chains were much lower than those PFCs with short chains (≤C8). An electrochemical oxidation reactor was employed for advanced treatment of PFCs in WWTP effluents using stainless steel plates as anode and cathode electrodes. It was concluded that the removal efficiency of PFCs was improved accordingly with the increasing applied current density. The removal efficiencies of target PFCs ranged from 23.53 to 51.79% with a reaction time of 30 minutes, current density of 20 mA/cm2, electrode plate distance of 1.0 cm and electrode plate amounts of five pairs.
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Research Article|
April 01 2015
Removal of perfluorinated compounds in wastewater treatment plant effluents by electrochemical oxidation Available to Purchase
Chunhui Zhang;
1School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Room 607, Yifu Science and Research Building, Ding 11 Xueyuan Road, Beijing 100083, China
E-mail: [email protected]
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Liangliang Wang;
Liangliang Wang
1School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Room 607, Yifu Science and Research Building, Ding 11 Xueyuan Road, Beijing 100083, China
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Juan Li;
Juan Li
1School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Room 607, Yifu Science and Research Building, Ding 11 Xueyuan Road, Beijing 100083, China
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Peidong Su;
Peidong Su
1School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Room 607, Yifu Science and Research Building, Ding 11 Xueyuan Road, Beijing 100083, China
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Chen Peng
Chen Peng
1School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Room 607, Yifu Science and Research Building, Ding 11 Xueyuan Road, Beijing 100083, China
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Water Sci Technol (2015) 71 (12): 1783–1789.
Article history
Received:
September 01 2014
Accepted:
March 23 2015
Citation
Chunhui Zhang, Liangliang Wang, Juan Li, Peidong Su, Chen Peng; Removal of perfluorinated compounds in wastewater treatment plant effluents by electrochemical oxidation. Water Sci Technol 1 June 2015; 71 (12): 1783–1789. doi: https://doi.org/10.2166/wst.2015.160
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