Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Acid Fermentation Characteristic of Food Wastes According to the Organic Loading Rate

유기물부하에 따른 음식물찌꺼기의 산발효 특성

  • Park, Jin-Sik (Department of Health & Environmental, Kyungwoon University) ;
  • Ahn, Chul-Woo (Environmental Team, Korea National Parks Authrority) ;
  • Jang, Seong-Ho (Department of Environmental System Engineering, Pusan National University)
  • 박진식 (경운대학교 보건환경전공) ;
  • 안철우 (국립공원관리공단 환경팀) ;
  • 장성호 (부산대학교 지역환경시스템공학)
  • Published : 2006.10.31
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Abstract

This study has been conducted to optimum operating conditions for effective acid fermentation according to OLR(organic loading rate) in the mesophilic and thermophilic acid fermentation process. The results are summarized as follows. In order to obtain reasonable acid fermentation efficiency in performing acid fermentation of food wastes in thermophilic condition, organic loading rate was required below 20 gVS/L.d. As $SCOD_{Cr}/TKN,\;SCOD_{Cr}/T-P$ of thermophilic acid fermented food wastes In organic loading rate 20 gVS/L.d were 18.9, 73.4 respectively, it was possible to utilize as external carbon source for denitrification in sewage treatment plant after solid-liquid separation as well as co-digestion of fermented food wastes and sewage sludge.

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References

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