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Advanced treatment of biologically pretreated coking wastewater by a bipolar three-dimensional electrode reactor.
Environ Technol. 2013 Jul-Aug; 34(13-16):2371-6.ET

Abstract

Electrochemical oxidation is a promising technology for the treatment ofbio-refractory wastewater. In this research, advanced treatment of coking wastewater which had previously undergone A/O (anaerobic-aerobic biological) treatment was investigated over Ti/RuO2 x IrO2 anode, stainless steel cathode and coke powder particle electrodes which were packed into the electrodes in a bipolar three-dimensional electrode reactor (BTDR). The results showed that the removal efficiency of COD and ammonia nitrogen increased with applied current density. The main influencing factors of BTDR were evaluated by an orthogonal test, including reaction time, plate distance, current density, plate amounts and aeration flow rate. With reaction time of 60 min, plate distance of 1.0 cm, current density of 20 mA/cm2 and plate amounts of four pairs, most of the contaminants in coking wastewater can be remediated by BTDR, which can then meet the discharge limit for coking wastewater in China. For organic pollutants, 12 kinds of organic pollutants can be completely removed, and the removal efficiencies of 11 kinds of organic pollutants are between 13.3 and 70.3% by advanced treatment with BTDR. We conclude that there is great potential for BTDR in engineering applications as a final treatment for coking wastewater.

Authors+Show Affiliations

School of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing, P.R. China. truemanjung@163.comState Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, P.R. China.School of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing, P.R. China.School of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing, P.R. China.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24350493

Citation

Zhang, Chunhui, et al. "Advanced Treatment of Biologically Pretreated Coking Wastewater By a Bipolar Three-dimensional Electrode Reactor." Environmental Technology, vol. 34, no. 13-16, 2013, pp. 2371-6.
Zhang C, Lin H, Chen J, et al. Advanced treatment of biologically pretreated coking wastewater by a bipolar three-dimensional electrode reactor. Environ Technol. 2013;34(13-16):2371-6.
Zhang, C., Lin, H., Chen, J., & Zhang, W. (2013). Advanced treatment of biologically pretreated coking wastewater by a bipolar three-dimensional electrode reactor. Environmental Technology, 34(13-16), 2371-6.
Zhang C, et al. Advanced Treatment of Biologically Pretreated Coking Wastewater By a Bipolar Three-dimensional Electrode Reactor. Environ Technol. 2013 Jul-Aug;34(13-16):2371-6. PubMed PMID: 24350493.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Advanced treatment of biologically pretreated coking wastewater by a bipolar three-dimensional electrode reactor. AU - Zhang,Chunhui, AU - Lin,Hui, AU - Chen,Jun, AU - Zhang,Wenwen, PY - 2013/12/20/entrez PY - 2013/12/20/pubmed PY - 2014/1/17/medline SP - 2371 EP - 6 JF - Environmental technology JO - Environ Technol VL - 34 IS - 13-16 N2 - Electrochemical oxidation is a promising technology for the treatment ofbio-refractory wastewater. In this research, advanced treatment of coking wastewater which had previously undergone A/O (anaerobic-aerobic biological) treatment was investigated over Ti/RuO2 x IrO2 anode, stainless steel cathode and coke powder particle electrodes which were packed into the electrodes in a bipolar three-dimensional electrode reactor (BTDR). The results showed that the removal efficiency of COD and ammonia nitrogen increased with applied current density. The main influencing factors of BTDR were evaluated by an orthogonal test, including reaction time, plate distance, current density, plate amounts and aeration flow rate. With reaction time of 60 min, plate distance of 1.0 cm, current density of 20 mA/cm2 and plate amounts of four pairs, most of the contaminants in coking wastewater can be remediated by BTDR, which can then meet the discharge limit for coking wastewater in China. For organic pollutants, 12 kinds of organic pollutants can be completely removed, and the removal efficiencies of 11 kinds of organic pollutants are between 13.3 and 70.3% by advanced treatment with BTDR. We conclude that there is great potential for BTDR in engineering applications as a final treatment for coking wastewater. SN - 0959-3330 UR - https://www.unboundmedicine.com/medline/citation/24350493/Advanced_treatment_of_biologically_pretreated_coking_wastewater_by_a_bipolar_three_dimensional_electrode_reactor_ L2 - https://www.tandfonline.com/doi/full/10.1080/09593330.2013.770559 DB - PRIME DP - Unbound Medicine ER -