Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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Comparison of the Performance of Chamber and Bag Digesters for Solid State Anaerobic Digestion of Separated Solid Fraction of Swine Manure

  • Lee, Jaehee (Dept. of Animal Biosystems Science, Chungnam National University) ;
  • Lee, Seunghun (Dept. of Animal Biosystems Science, Chungnam National University) ;
  • Kim, Eunjong (Dept. of Animal Biosystems Science, Chungnam National University) ;
  • Jo, Hyunsoo (Dept. of Animal Biosystems Science, Chungnam National University) ;
  • Ahn, Heekwon (Dept. of Animal Biosystems Science, Chungnam National University)
  • Received : 2015.04.05
  • Accepted : 2015.04.17
  • Published : 2015.04.30
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Abstract

The performance of chamber and bag digesters for solid state anaerobic digestion (SS-AD) of separated solid fraction of swine manure was investigated using lab-scale digester (4,460 mL total volume and 1,800 mL of effective volume) operating at $37^{\circ}C$ for 63 days. The performance of two different digester types was evaluated in terms of the kinetic constants of methane production obtained from the Gompertz and Gaussian equations. Methane production potential of chamber and bag digester was 202 and $218N{\cdot}mL$ $CH_4/g$ VS. Time to produce 95% methane production potential (T95) and calculated effective anaerobic digestion time were 55.5 days and 41.8 days for chamber digester and 52.8 days and 43.5 days for bag digester, respectively. Our results reveal that the performance was not significantly different between chamber and bag digester.

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References

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