유기물자원화 (Journal of the Korea Organic Resources Recycling Association)

  • 제26권1호
  • /
  • Pages.55-64
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  • 2018
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  • 1225-6498(pISSN)
  • /
  • 2508-3015(eISSN)
유기성자원학회 (Korea Organic Resources Recycling Association)
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바이오가스 이용 기술지침 마련을 위한 연구(I) - 현장조사 결과 중심으로

A Study on Establishment of Technical Guideline of the Installation and Operation for the Biogas Utilization of Power Generation and Stream - Results of the Field Investigation

  • 문희성 (국립환경과학원 환경자원연구부) ;
  • 배지수 (국립환경과학원 환경자원연구부) ;
  • 박호연 (국립환경과학원 환경자원연구부) ;
  • 전태완 (국립환경과학원 환경자원연구부) ;
  • 이영기 (국립환경과학원 환경자원연구부) ;
  • 이동진 (국립환경과학원 환경자원연구부)
  • Moon, HeeSung (Environmental Resource Research Department, National Institute of Environmental Research) ;
  • Bae, Jisu (Environmental Resource Research Department, National Institute of Environmental Research) ;
  • Park, Hoyeun (Environmental Resource Research Department, National Institute of Environmental Research) ;
  • Jeon, Taewan (Environmental Resource Research Department, National Institute of Environmental Research) ;
  • Lee, Younggi (Environmental Resource Research Department, National Institute of Environmental Research) ;
  • Lee, Dongjin (Environmental Resource Research Department, National Institute of Environmental Research)
  • 투고 : 2018.03.09
  • 심사 : 2018.03.14
  • 발행 : 2018.03.30
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초록

본 연구는 유기성폐자원(가축분뇨, 음식물류폐기물, 음식물류폐수 등)의 바이오가스 이용에 대한 적정 설계 및 운전 기술지침서 마련하고자 현장조사와 정밀모니터링 등을 실시하였다. 정부의 중장기 바이오가스화 정책에 따라 폐자원의 자원화 시설 확충이 활발히 추진되고 있다. 하지만 생산된 바이오가스를 이용하여 발전 및 스팀으로 활용하는 시설은 효율이 아직은 저조하고 잦은 고장이 발생되고 있다. 현재 운영 중인 바이오가스화 11개소를 대상으로 바이오가스 이용 공정별 특징 및 문제점을 분석하고 혐기소화조 현장 시료의 계절별 정밀모니터링을 실시하여 바이오가스 이용 공정 흐름에 따른 설계 운영 가이드라인을 제시하였다. 현장조사 수행 결과, 바이오가스 이용 공정에서 바이오가스의 적정 제습, 황화수소 전처리, 발전시설의 적정처리 등이 주요 문제점으로 조사되었다. 따라서 유기성폐자원의 바이오가스화 시설의 단점을 보완하고 바이오가스 이용 최적화 방안을 마련하기 위하여 현장지설에 대한 정밀조사를 실시하여 공정별 문제점들을 정리하였다.

The purpose of this study is to provide a design and operation technical guideline for meeting the appropriate design criteria to biogas utilization treating organic wastes. In accordance with the government's mid-to long-term policies on bio-gasification and energization of organic wastes, the expansion of the waste-to-energy (WTE) facilities is being remarkably promoted. However, because of the limitation of livestock manure containing low-concentration of volatile solids, there has been increased in combined bio-gasification without installing new anaerobic digestion facilities. The characteristics and common problems of each treatment processes were investigated for on-going 11 bio-gasification facilities. The seasonal precision monitoring of chemicophysics analysis on anaerobic digestor samples was conducted to provide guidelines for design and operation according to the progress of biogas utilization. Consequently, Major problems were investigated such as large deviation of organic materials depending on seasons, proper dehumidification of biogas, pretreatment of hydrogen sulfide, operation of power generation and steam. This study was conducted to optimize biogas utilization of type of organic waste(containing sewage sludge and food waste, animal manure), research the facilities problem through field investigation.

키워드

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