A Study on the Pretreatment of Activated Sludge for Bio-hydrogen Production Process

생물학적 수소생산 공정 개발을 위한 오니 슬러지 전처리에 대한 연구

  • Park, Dae-Won (Water Environmental & Remediation Research Center, Korea Institute Science and Technology) ;
  • Kim, Dong-Kun (Water Environmental & Remediation Research Center, Korea Institute Science and Technology) ;
  • Kim, Ji-Seong (Water Environmental & Remediation Research Center, Korea Institute Science and Technology) ;
  • Park, Ho-Il (Water Environmental & Remediation Research Center, Korea Institute Science and Technology)
  • 박대원 (한국과학기술연구원/수질환경 및 복원 연구센타) ;
  • 김동건 (한국과학기술연구원/수질환경 및 복원 연구센타) ;
  • 김지성 (한국과학기술연구원/수질환경 및 복원 연구센타) ;
  • 박호일 (한국과학기술연구원/수질환경 및 복원 연구센타)
  • Published : 2004.09.30

Abstract

In this study, Anaerobic sewage sludge in a batch reactor operation at $35^\circ{C}$ was used as the seed to investigate the effect of pretreatments of waste activated sludge and to evaluate its hydrogen production potential by anaerobic fermentation. Various pretreatments including physical, chemical and biological means were conducted to utilize for substrate. As a result, SCODcr of alkali and mechanical treatment was 15 and 12 times enhanced, compared with a supernatant of activated sludge. And SCODcr was 2 time increase after re-treatment with biological hydrolysis. Those were shown that sequential hybridized treatment of sludge by chemical & biological methods to conform hydrogen production potential in bath experiments. When buffer solution was added to the activated sludge, hydrogen production potential increased as compare with no addition. Combination of alkali and mechanical treatment was higher in hydrogen production potential than other treatments.

Keywords

References

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