2010 Volume 4 Issue 6
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Ji Min, Li Chao, Zhang Yunxia, Sui Hongzhi, Li Xin, Guo Li. Pilot test of domestic wastewater treatment in anaerobic/aerobic granular sludge SBR system[J]. Chinese Journal of Environmental Engineering, 2010, 4(6): 1276-1282.
Citation: Ji Min, Li Chao, Zhang Yunxia, Sui Hongzhi, Li Xin, Guo Li. Pilot test of domestic wastewater treatment in anaerobic/aerobic granular sludge SBR system[J]. Chinese Journal of Environmental Engineering, 2010, 4(6): 1276-1282.
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Pilot test of domestic wastewater treatment in anaerobic/aerobic granular sludge SBR system

  • 1.

    School of Environmental Science and Engineering, Tianjin University, Tianjin 300072,China

  • 2.

    Tianjin Municipal Engineering Design & Research Institute, Tianjin 300051,China

  • Received Date: 14/06/2009
    Accepted Date: 20/04/2009
    Fund Project:
  • A pilot-scale anaerobic/aerobic granular sludge SBR system inoculated with normal activated sludge was used to treat domestic wastewater. The cultivation process of aerobic granular sludge and the efficiency of the system were investigated, as well as the characteristics of granular sludge. After 72 d’s cultivation, small granular sludge appeared in the reactor. Within another 230 d’s operation, the diameter and the percentage of aerobic granular sludge increased gradually by changing DO concentration, volume exchange rate and operation programs. Under the optimum working conditions, MLSS reached 3 000～4 000 mg/L and SVI decreased to 45～55 mL/g. The average removal efficiencies of COD, NH3-N, TN and TP reached 91.63%, 74.02%, 68.42% and 96.41%, respectively. Simultaneous nitrogen and phosphorus removal ability was achieved in the reactor.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Pilot test of domestic wastewater treatment in anaerobic/aerobic granular sludge SBR system

  • Received Date: 14/06/2009
  • Accepted Date: 20/04/2009
Fund Project:

Abstract: A pilot-scale anaerobic/aerobic granular sludge SBR system inoculated with normal activated sludge was used to treat domestic wastewater. The cultivation process of aerobic granular sludge and the efficiency of the system were investigated, as well as the characteristics of granular sludge. After 72 d’s cultivation, small granular sludge appeared in the reactor. Within another 230 d’s operation, the diameter and the percentage of aerobic granular sludge increased gradually by changing DO concentration, volume exchange rate and operation programs. Under the optimum working conditions, MLSS reached 3 000～4 000 mg/L and SVI decreased to 45～55 mL/g. The average removal efficiencies of COD, NH3-N, TN and TP reached 91.63%, 74.02%, 68.42% and 96.41%, respectively. Simultaneous nitrogen and phosphorus removal ability was achieved in the reactor.

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