대한환경공학회지 (Journal of Korean Society of Environmental Engineers)

  • 제34권11호
  • /
  • Pages.765-771
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  • 2012
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  • 1225-5025(pISSN)
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  • 2383-7810(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
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시설농업부산물의 잠재메탄발생량 평가 및 사일로 저장에 따른 메탄 발생 변화

Biochemical Methane Potential of Agricultural Residues and Influence of Ensiling on Methane Production

  • 이유진 (서울대학교 공과대학 건설환경공학부) ;
  • 조한상 (동부제철 기술연구소) ;
  • 김재영 (서울대학교 공과대학 건설환경공학부) ;
  • 강준구 (국립환경과학원 환경자원연구부 폐자원에너지연구과) ;
  • 이성수 (국립환경과학원 환경자원연구부 폐자원에너지연구과) ;
  • 김규연 (국립환경과학원 환경자원연구부 폐자원에너지연구과)
  • Lee, Yu Jin (Department of Civil and Environmental Engineering, Seoul National University) ;
  • Cho, Han Sang (Dongbu Steel Technical Research Laboratories) ;
  • Kim, Jae Young (Department of Civil and Environmental Engineering, Seoul National University) ;
  • Kang, Jungu (Waste-to-Energy Research Division, Environmental Resources Research Department, National Institute of Environmental Research) ;
  • Rhee, Sungsu (Waste-to-Energy Research Division, Environmental Resources Research Department, National Institute of Environmental Research) ;
  • Kim, Kyuyeon (Waste-to-Energy Research Division, Environmental Resources Research Department, National Institute of Environmental Research)
  • 투고 : 2012.09.04
  • 심사 : 2012.11.26
  • 발행 : 2012.11.30
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초록

본 연구에서는 BMP (Biochemical Methane Potential) test를 통해 얼갈이배추, 딸기, 토마토, 오이, 참외 시설농업부산물의 잠재메탄발생량을 조사하였다. 또한, 시설농업부산물을 사일로에 저장하고 저장 전후의 잠재메탄발생량을 비교하여 사일리지 저장기술이 메탄 생산에 미치는 영향을 분석하였다. 대상 시료의 잠재메탄발생량과 생분해도는 각각 149~286 mL-$CH_4/g$-VS, 27~48%(by vol.)의 범위를 나타내었으며 메탄발생량은 얼갈이배추 > 참외 > 딸기 ${\approx}$ 오이 > 토마토 순으로 조사되었다. 사일로 저장 후, 원시료와 비교하였을 때 VS 기준 메탄발생량이 -11~36%(by vol.) 증감하여 시료 별로 상이한 결과를 보였다. 저장기간 중 유기산 증가, 섬유소 분해로 메탄발생량이 증가하고 화학 성분의 변화, 암모니아 저해로 메탄발생량이 감소한 것으로 판단된다.

In this study, the biochemical methane potentials of different agricultural residues produced from agricultural plastic greenhouse were determined. Additionally, ensiling storage practice was applied on agricultural residues for its effect on biogas production. Agricultural residues of cabbage, strawberry, tomato, cucumber, and oriental melon were selected as sample. The methane potential and biodegradability of agricultural residues ranged from 149~286 mL-$CH_4/g$-VS, 27~48% (by vol.), respectively and methane production was in order of cabbage > oriental melon > strawberry ${\approx}$ cucumber > tomato. Ensiling caused difference in methane production in a range of -11~36% (by vol.) per VS compared with raw material. An increase in methane potential was presumably linked to the organic acid accumulation, cellulose degradation and decrease in methane potential was due to chemical composition change, ammonia accumulation during the storage process.

키워드

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