Life Cycle Assessment of Greenhouse Gas Emissions from Livestock and Food Wastes Co-digestive Biogas Production System

전과정평가 방법을 이용한 가축분뇨/음식폐기물 통합 소화형 바이오가스 시설의 온실가스 배출량 평가

  • Nam, Jae-Jak (Department of Climate Change and AgroEcology, National Academy of Agricultural Science, RDA) ;
  • Yoon, Young-Man (Biogas Research Center, Hankyong National University) ;
  • Lee, Young-Haeng (Center for Environmental Technology Research, Korea Institute of Science and Technology) ;
  • So, Kyu-Ho (Department of Climate Change and AgroEcology, National Academy of Agricultural Science, RDA) ;
  • Kim, Chang-Hyun (Biogas Research Center, Hankyong National University)
  • 남재작 (농촌진흥청 농업과학원 기후변화생태과) ;
  • 윤영만 (한경대학교 바이오가스 연구센터) ;
  • 이영행 (한국과학기술연구원 환경기술연구단) ;
  • 소규호 (농촌진흥청 농업과학원 기후변화생태과) ;
  • 김창현 (한경대학교 바이오가스 연구센터)
  • Published : 2008.12.31


Biogas plant with anaerobic digestion is receiving high attention as a facility for both livestock waste treatment and electric power generation. Objective of this study was to perform life cycle assessment (LCA) of a biogas plant which incorporates swine and food waste (7:3) as source materials for biogas production. In addition, the biogas production process was compared with the prevalent composting method as a reference in the aspects of green house gas (GHG) reduction potential and environmental impact. The biogas method was capable of reducing 52 kg $CO_2$ eq. emission per ton of swine/food waste, but the composting process was estimated to emit 268 kg $CO_2$ eq. into air. The biogas method was evaluated as more beneficial to the environment by mitigating the impact on abiotic depletion potential (ADP), global warming potential (GWP), ozone depletion potential (ODP), eutrophication potential (EP), and photochemical ozone creation potential (POCP), but not to acidification potential (AP).


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