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Bao Linlin, Zhao Jianguo, Li Xiaokai, Li Dong, Zhang Jie. Start-up and stability of Anammox bioreactor at normal temperature and low substrate concentration[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 981-986.
Citation: Bao Linlin, Zhao Jianguo, Li Xiaokai, Li Dong, Zhang Jie. Start-up and stability of Anammox bioreactor at normal temperature and low substrate concentration[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 981-986.
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Start-up and stability of Anammox bioreactor at normal temperature and low substrate concentration

  • 1.

    Henan Key Laboratory of Environmental Pollution Control, Key Laboratory for Yellow River and Huaihe River Water Environment and Pollution Control, Ministry of Education, School of Environment, Henan Normal University, Xinxiang 453007, China

  • 2.

    School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China

  • Received Date: 15/12/2011
    Accepted Date: 13/09/2011
    Available Online: 18/03/2013
    Fund Project:
  • In this study, lab-scale up-flow biofilter reactor fed with the oxidation ditch backflow sludge was used to start-up the anaerobic ammonium oxidation (Anammox) process under normal temperature and low substrate concentration. Firstly, aerobic nitration biofilm was cultivated, and then Anammox biofilm was cultivated under anaerobic condition. The influent pH of 7.50~7.80, NH4+-N of 30~40 mg/L, NO2--N of 35~50 mg/L and temperature of 20~25℃ were controlled in this study. After 224 days of operation, the Anammox reactor was started up successfully. In the stable operation stage, the average concentration of effluent NO2--N and NH4+-N were 1.4 mg/L and 4.6 mg/L, respectively, the removal rate of NO2--N and NH4+-N were 95.3% and 90.1%, respectively. The removal proportion of NO2--N/NH4+-N was 1~1.8∶1 and the main focused on 1.4~1.5∶1. The removal volume loading rate of NO2--N and NH4+-N were 104.2 mg/(L·d) and 146.0 mg/(L·d), respectively.
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Start-up and stability of Anammox bioreactor at normal temperature and low substrate concentration

  • Received Date: 15/12/2011
  • Accepted Date: 13/09/2011
  • Available Online: 18/03/2013
Fund Project:

Abstract: In this study, lab-scale up-flow biofilter reactor fed with the oxidation ditch backflow sludge was used to start-up the anaerobic ammonium oxidation (Anammox) process under normal temperature and low substrate concentration. Firstly, aerobic nitration biofilm was cultivated, and then Anammox biofilm was cultivated under anaerobic condition. The influent pH of 7.50~7.80, NH4+-N of 30~40 mg/L, NO2--N of 35~50 mg/L and temperature of 20~25℃ were controlled in this study. After 224 days of operation, the Anammox reactor was started up successfully. In the stable operation stage, the average concentration of effluent NO2--N and NH4+-N were 1.4 mg/L and 4.6 mg/L, respectively, the removal rate of NO2--N and NH4+-N were 95.3% and 90.1%, respectively. The removal proportion of NO2--N/NH4+-N was 1~1.8∶1 and the main focused on 1.4~1.5∶1. The removal volume loading rate of NO2--N and NH4+-N were 104.2 mg/(L·d) and 146.0 mg/(L·d), respectively.

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