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A platform for research: civil engineering, architecture and urbanism
Biodegradation of Polychlorinated Biphenyls Using a Moving‐Bed Biofilm Reactor
As persistent organic pollutants, polychlorinated biphenyls (PCBs) are rarely degraded in nature environment. Biodegradation is an effective method for the removal of PCBs from contaminated wastewater. In this study, an assessment of the performance of a combined moving‐bed biofilm reactor and a membrane filtration system (MBBR‐MF) for the treatment of PCB‐containing wastewater was performed. Simulated wastewater containing PCB77 was treated in an MBBR system. PCB removal efficiency was investigated at different sections of the combined MBBR‐MF system. The results showed that the removal efficiencies for PCB77 in the anaerobic MBBR were 73 and 84.4% in the aerobic section. The possible biodegradation products were investigated. The results of gas chromatography–mass spectrometry indicate that the PCBs were converted into small molecules that were easily mineralized under aerobic conditions. Thus, the MBBR technology could have potential for biodegradation use of PCB‐contaminated wastewater.
Biodegradation of Polychlorinated Biphenyls Using a Moving‐Bed Biofilm Reactor
As persistent organic pollutants, polychlorinated biphenyls (PCBs) are rarely degraded in nature environment. Biodegradation is an effective method for the removal of PCBs from contaminated wastewater. In this study, an assessment of the performance of a combined moving‐bed biofilm reactor and a membrane filtration system (MBBR‐MF) for the treatment of PCB‐containing wastewater was performed. Simulated wastewater containing PCB77 was treated in an MBBR system. PCB removal efficiency was investigated at different sections of the combined MBBR‐MF system. The results showed that the removal efficiencies for PCB77 in the anaerobic MBBR were 73 and 84.4% in the aerobic section. The possible biodegradation products were investigated. The results of gas chromatography–mass spectrometry indicate that the PCBs were converted into small molecules that were easily mineralized under aerobic conditions. Thus, the MBBR technology could have potential for biodegradation use of PCB‐contaminated wastewater.
Biodegradation of Polychlorinated Biphenyls Using a Moving‐Bed Biofilm Reactor
Dong, Bin (author) / Chen, Han‐Yu (author) / Yang, Yang (author) / He, Qun‐biao (author) / Dai, Xiao‐Hu (author)
CLEAN – Soil, Air, Water ; 43 ; 1078-1083
2015-07-01
7 pages
Article (Journal)
Electronic Resource
English
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