Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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A Study on the Effect of Energy Saving with Newly Implemented Vertical Circulating Tray Mixer in Anaerobic digester

혐기성 소화조의 에너지 효율 향상을 위한 수직 왕복형 교반기 적용에 관한 연구

  • Joo, Yoon-Sik (Technology R&D Center, Woojin Co., Ltd.) ;
  • Son, Guntae (Department of Environmental Engineering, Kumoh National Institute of Techonology) ;
  • Bae, Youngjun (Technology R&D Center, Woojin Co., Ltd.) ;
  • Park, Jungsoo (Technology R&D Center, Woojin Co., Ltd.) ;
  • Lee, Seunghwan (Department of Environmental Engineering, Kumoh National Institute of Techonology)
  • 주윤식 (주식회사 우진 기술연구소) ;
  • 손건태 (금오공과대학교 환경공학과) ;
  • 배영준 (주식회사 우진 기술연구소) ;
  • 박정수 (주식회사 우진 기술연구소) ;
  • 이승환 (금오공과대학교 환경공학과)
  • Received : 2016.09.05
  • Accepted : 2017.01.25
  • Published : 2017.02.28
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Abstract

Relatively low efficiency in anaerobic digestion process is mainly caused by unproper mixing method. In this study, tray motion type agitator was applied in actual anaerobic digestion tank in order to improve the digestion efficiency, equalize the flow velocity distribution and energy saving. The impeller of tray motion type agitator was reciprocated vertically. Gas lift type agitator and tray motion type agitator appears almost same mixing efficiency include digestion rates. However, tray motion type agitator have shown that lower energy consumption compared to the conventional gas lift type agitator. Implementation of tray motion type agitator in the anaerobic digestion tanks contributed to the stabilization of mixing environment, efficiency and energy efficiency of the tank.

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References

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