Journal of Korea Society of Waste Management (한국폐기물자원순환학회지)

Korea Society of Waste Management (한국폐기물자원순환학회)
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Estimation of Characteristics Treatment for Food Waste using Ultra Thermophilic Aerobic Composting Process

초고온 호기성 퇴비화 공정을 이용한 음식물쓰레기 처리 특성 평가

  • Park, Seyong (Plant Engineering Center, Institute for Advanced Engineering) ;
  • Oh, Dooyoung (Plant Engineering Center, Institute for Advanced Engineering) ;
  • Cheong, Cheoljin (Plant Engineering Center, Institute for Advanced Engineering) ;
  • Jang, Eunsuk (Plant Engineering Center, Institute for Advanced Engineering) ;
  • Song, Hyoungwoon (Plant Engineering Center, Institute for Advanced Engineering)
  • 박세용 (고등기술연구원 플랜트엔지니어링 본부) ;
  • 오두영 (고등기술연구원 플랜트엔지니어링 본부) ;
  • 정철진 (고등기술연구원 플랜트엔지니어링 본부) ;
  • 장은석 (고등기술연구원 플랜트엔지니어링 본부) ;
  • 송형운 (고등기술연구원 플랜트엔지니어링 본부)
  • Received : 2016.11.02
  • Accepted : 2017.01.02
  • Published : 2017.03.31
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Abstract

This study was conducted to evaluate the effects of physical characteristics. Twelve specific odorous compounds and various sources of bacteria were tested via treatment of food waste using an ultra-thermophilic aerobic composting process. Food waste was mixed with seed material and operated for 47 days. During composting, the temperature was maintained at $80-90^{\circ}C$. The variations in $O_2$, $CO_2$ and $NH_3$ production suggested typical microorganism-driven organic decomposition patterns. After composting, the concentrations of 12 specific odorous compounds other than ammonia did not exceed the allowable exhaust limits for odor. After composting, thermophiles represented 50% of all bacteria. After composting, the percentage of thermophile bacterial increased by 15%. Therefore, both stable composting operation and economic benefit can be expected when an ultra-thermophilic composting process is applied to food waste.

Keywords

Acknowledgement

Supported by : 농림수산식품기술기획평가원