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Ni Zhe, Pan Chaozhi, Niu Dongjie, Chen Ling. Treatment of chicken manure by two-phase anaerobic digestion reactor[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1522-1526.
Citation: Ni Zhe, Pan Chaozhi, Niu Dongjie, Chen Ling. Treatment of chicken manure by two-phase anaerobic digestion reactor[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1522-1526.
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Treatment of chicken manure by two-phase anaerobic digestion reactor

  • 1.

    College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China

  • 2.

    Key Laboratory of Yangtze Aquatic Environment, Ministry of Education, Tongji University, Shanghai 200092, China

  • Received Date: 18/01/2012
    Accepted Date: 28/10/2011
    Available Online: 09/04/2013
    Fund Project:
  • Two-phase batch anaerobic digestion process was carried out under the mesophilic condition (37℃) for the treatment of chicken manure. The pH values of hydrolysis acidification phase and methanogenesis phase were controlled at 5.5±0.3 and 7.0±0.3, respectively. The effects of organic loading rate (OLR) on the conversion and removal of pollutant were studied by changing the influent total solid content. The results indicate that with OLR increase, the concentration of total organic carbon (TOC), volatile fatty acid (VFA) and ammonia-nitrogen (NH4+-N) in the effluent of hydrolysis acidification phase significantly increase. The distribution of individual VFA is stable with acetic acid accounting for 57%~64% of total VFAs concentration, followed by n-butyric acid and propionic acid. The TOC and VFAs concentration in the effluent of methanogenesis phase is in a low level; and the maximum removal rate of TOC is more than 90%. In the late stage of experiment, the methane content produced in methanogenesis phase is above 64% by volume, suggesting that two-phase anaerobic digestion process was operated well under the experimental condition.
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Treatment of chicken manure by two-phase anaerobic digestion reactor

  • Received Date: 18/01/2012
  • Accepted Date: 28/10/2011
  • Available Online: 09/04/2013
Fund Project:

Abstract: Two-phase batch anaerobic digestion process was carried out under the mesophilic condition (37℃) for the treatment of chicken manure. The pH values of hydrolysis acidification phase and methanogenesis phase were controlled at 5.5±0.3 and 7.0±0.3, respectively. The effects of organic loading rate (OLR) on the conversion and removal of pollutant were studied by changing the influent total solid content. The results indicate that with OLR increase, the concentration of total organic carbon (TOC), volatile fatty acid (VFA) and ammonia-nitrogen (NH4+-N) in the effluent of hydrolysis acidification phase significantly increase. The distribution of individual VFA is stable with acetic acid accounting for 57%~64% of total VFAs concentration, followed by n-butyric acid and propionic acid. The TOC and VFAs concentration in the effluent of methanogenesis phase is in a low level; and the maximum removal rate of TOC is more than 90%. In the late stage of experiment, the methane content produced in methanogenesis phase is above 64% by volume, suggesting that two-phase anaerobic digestion process was operated well under the experimental condition.

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