대한환경공학회지 (Journal of Korean Society of Environmental Engineers)

  • 제36권10호
  • /
  • Pages.679-684
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  • 2014
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  • 1225-5025(pISSN)
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  • 2383-7810(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
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매몰지 생물반응조 개조를 통한 사체의 안정화 촉진

Enhanced Stabilization of Carcasses by Retrofitting Burial Sites to Bioreactor

  • 김건하 (한남대학교 건설시스템공학과) ;
  • 전해성 (한남대학교 건설시스템공학과)
  • Kim, Geonha (Department of Civil & Environmental Engineering, Hannam University) ;
  • Jeon, Haeseong (Department of Civil & Environmental Engineering, Hannam University)
  • 투고 : 2014.08.04
  • 심사 : 2014.10.24
  • 발행 : 2014.10.30
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초록

가축전염병 확산을 방지하기 위하여 조성된 긴급매몰지의 경우 침출수 누출이 확인되면 원형저장조로 이설된 경우가 있는데, 저장조 내 낮은 함수율과 혼합문제로 인해 분해가 거의 이루어지지 않고 있는 실정이다. 본 연구에서는 사체의 안정화를 촉진할 수 있도록 원형저장조를 생물반응조(Bioreactor)로 구조를 변경하였다. 침출수를 재순환하고 미생물을 공급하여 안정화에 필요한 미생물활동을 증가시켰다. 원형저장조 내부 유기물의 변형을 고려한 침하량 모형을 사용하여 예측한 침하량 최종치는 생물저장조 구조 변경 후 5년간 약 30%이었다.

Many burial sites were constructed to suppress the spread of foot and mouth disease during outbreak. Defected burial sites were removed when leachate leak is presumed and carcasses were moved to the circular storage tanks. However, carcasses were not decomposed possibly due to low water content, low microbial activities, and poor mixing. In this research, storage tank containing carcasses in it was modified to bioreactor to accelerate stabilization. Liquids with nutrients were added and circulated to maintain the optimum water content while extraneous microorganisms were augmented. Settlement was used as the primary index for assessing stabilization rate, and the consolidation theory was utilized to estimate the expected final settlement. 30% of carcasses is expected to be decomposed and removed from the storage tank for five years of bioreactor operation.

키워드

참고문헌

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