J4 ›› 2012, Vol. 42 ›› Issue (1): 233-239.

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A Novel Combined Process（CSTR-UASBAF-NMBR）in the Pilot Treatment of Organic Wastewater and Its Mathematical Modelling

GAO Lei1,REN Nan-qi1,CHEN Zhao-bo2,WANG Ai-jie1,ZHANG Lu-si1,WANG Hong-cheng2   

  1. 1.State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology,Harbin150090,China;
    2.College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin150090, China
  • Received:2011-04-21 Online:2012-01-26 Published:2012-01-26

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Abstract:

A novel combined biological process (CSTR-UASBAF-NMBR) was used to treat the effluent waste water in a corn deep processing enterprise. Results demonstrated that the combined process successfully started after 50 d. In the 155 days’ steady process, the removal rates of COD and BOD achieved 99.4% and 99.8%, respectively. The investigation to explore optimum conditions of the NMBR indicated that hydraulic retention time (HRT) was controlled in 12 h in NMBR; the effluent could achieve the standard of reclaimed water recycle. Based on the anaerobic digestion model No.1(ADM1) and activated sludge model No.1(ASM1), the mathematical simulation of CSTR-UASBAF-NMBR process was performed. The favorable simulation illustrated that the average deviations of the three processes were lower than 15%, suggesting that the model can predict well on the novel combined process.

Key words: wastewater treatment, organic wastewater, CSTR, UASBAF, NMBR, mathematical model

CLC Number: 

  • X322
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