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ZHU Shengjie, LI Ziwu, XIA Haifeng. Construction of microbial agent for COD degradation and its evaluate in wastewater treatment[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 5029-5034. doi: 10.12030/j.cjee.201609132
Citation: ZHU Shengjie, LI Ziwu, XIA Haifeng. Construction of microbial agent for COD degradation and its evaluate in wastewater treatment[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 5029-5034. doi: 10.12030/j.cjee.201609132
shu

Construction of microbial agent for COD degradation and its evaluate in wastewater treatment

  • 1.

    National Engineering Laboratory for Cereal Fermentation Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, China

  • Received Date: 02/11/2016
    Accepted Date: 14/09/2016
    Available Online: 26/08/2017
    Fund Project:
  • The active strains were isolated and screened from activated sludge by microbial breeding technology. The principle of construction of microbial agent for COD degradation was explored combined with microbial ecology. 7 strains were obtained by investigating the COD removal effect and flocculation effect of each single strains. The microbial agents were verified in the SBR and A/O simulation system. According to the proportion of COD-03, the SBR system effluent COD decreased from 300 mg·L-1 to about 120 mg·L-1 (inflow COD is 1 200 mg·L-1), which have a significant reduction (α=0.01) compared with other groups. Effluent COD of A/O decreased from about 500 mg·L-1 to nearly 100 mg·L-1 (inflow COD is 1 200 mg·L-1). The results well improve the operability and feasibility of construction strategy for composite agent for COD degradation.
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Construction of microbial agent for COD degradation and its evaluate in wastewater treatment

  • Received Date: 02/11/2016
  • Accepted Date: 14/09/2016
  • Available Online: 26/08/2017
Fund Project:

Abstract: The active strains were isolated and screened from activated sludge by microbial breeding technology. The principle of construction of microbial agent for COD degradation was explored combined with microbial ecology. 7 strains were obtained by investigating the COD removal effect and flocculation effect of each single strains. The microbial agents were verified in the SBR and A/O simulation system. According to the proportion of COD-03, the SBR system effluent COD decreased from 300 mg·L-1 to about 120 mg·L-1 (inflow COD is 1 200 mg·L-1), which have a significant reduction (α=0.01) compared with other groups. Effluent COD of A/O decreased from about 500 mg·L-1 to nearly 100 mg·L-1 (inflow COD is 1 200 mg·L-1). The results well improve the operability and feasibility of construction strategy for composite agent for COD degradation.

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