Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
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Life Cycle Impact Assessment to Corn Field Appling Anaerobic and Aerobic Digestates Including Each Swine Waste Treatment System

돈분처리 시스템을 포함한 액비 시용에 따른 옥수수 재배과정에 대한 전과정 환경영향 평가

  • Shin, Joung-Du (Dept. of Climate Change & agro-ecology, National Academy of Agricultural Science) ;
  • Lee, Sun-Il (Dept. of Climate Change & agro-ecology, National Academy of Agricultural Science) ;
  • Park, Woo-Kyun (Dept. of Climate Change & agro-ecology, National Academy of Agricultural Science) ;
  • Choi, Yong-Su (Dept. of Climate Change & agro-ecology, National Academy of Agricultural Science) ;
  • Na, Young-Eun (Coordination Division, Rural Development Adminstration) ;
  • Park, Yoo-Sung (Environmental Engineering, Ajou University)
  • 신중두 (국립농업과학원 기후변화생태과) ;
  • 이선일 (국립농업과학원 기후변화생태과) ;
  • 박우균 (국립농업과학원 기후변화생태과) ;
  • 최용수 (국립농업과학원 기후변화생태과) ;
  • 나영은 (농촌진흥청 연구정책국 연구운영과) ;
  • 박유성 (아주대학교 환경공학과)
  • Received : 2014.06.13
  • Accepted : 2014.06.28
  • Published : 2014.06.30
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Abstract

The application of the Life Cycle Impact Assessment (LCIA) methodology to analyze the environmental burden of appling the digestates to corn field including different swine waste treatment systems was investigated. The first part of LCA is an inventory of parameters used to emissions released due to the system under investigation. In the following step, the Life Cycle Impact Assessment, the inventory data were analyzed and aggregated in order to finally get one index representing the each environmental burden. Each corn field applied with the aerobic and anaerobic digestates including different swine waste treatment systems was used as an example for the life cycle impact analysis. With analyzing the agricultural environmental burden, it observed that the effect of corn field applied aerobic digestate including digestion system was 7.6 times higher at eutrophication effects, but global warming potential effect was 0.9 times less than its applied anaerobic digestate.

각기 다른 돈분 처리시스템 운영 과정을 포함하여 액비의 농경지 살포에 따른 옥수수 재배에 대한 환경영향을 분석하기 위하여 전과정 평가방법을 적용하였다. 전과정평가의 첫 번째 부분은 사용될 분석 항목을 구성하는 것으로 돈분 처리시스템 운영에 대한 유입 및 배출에 대한 항목이며, 전과정 영향평가를 위한 다음 단계로서 전체 환경부하를 최종적으로 하나의 지수로 통합하기 위하여, 특정 항목에 대한 자료를 취합하고 분석하는 것이다. 전과정 영향 분석을 위한 실례로서 호기 및 혐기소화시스템 운영부터 호기 및 혐기 액비의 농경지 시용에 대한 옥수수 재배과정에 이르기 까지를 평가하였다. 농업환경영향에 대한 부하량 평가에서, 혐기소화액을 이용한 옥수수 재배에서는 수계부영야화가 7.6배 높았으며, 지구온난화에 대한 생태지표 지수(Eco-indicator value)는 10.9 tonne $CO_2$ eq.로 0.9배 적게 배출하는 것으로 산정되었다.

Keywords

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