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NTIS 바로가기대한환경공학회지 = Journal of Korean Society of Environmental Engineers, v.31 no.9, 2009년, pp.693 - 704
송영채 (한국해양대학교 건설환경공학부) , 우정희 (한국해양대학교 녹색에너지환경연구센터) , 유규선 (전주대학교 토목환경공학과)
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핵심어 | 질문 | 논문에서 추출한 답변 |
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미생물연료전지는 어떻게 구성됩니까? | 미생물연료전지는 유기물에 함유된 화학에너지를 전기적으로 활성을 가진 미생물의 촉매작용을 이용하여 전기에너지로 직접 변환시키는 새로운 형태의 에너지 변환장치이다. 미생물연료전지는 음극과 양극을 각각 담지하고 있는 음극 반응조와 양극반응조 그리고 이들을 공간적으로 분리하여 구분시키는 분리막, 음극과 양극을 도선으로 연결한 회로로 구성된다. 유기물은 미생물연료전지의 음극반응조로 유입하며, 음극의 표면에 생물막 형태로 존재하는 미생물에 의하여 분해되어 전자와 양성자 및 이산화탄소를 생성한다. | |
하폐수처리를 위한 미생물연료전지 기술은 무엇을 의미하며 이것의 장점은 어떠합니까? | 3) 하폐수처리를 위한 미생물연료전지 기술에 대한 연구는 Kim 등 (1999)이 철환원균인 Shewanella putrefaciens가 별도의 매개체 없이 전자를 무생물인 전극으로 전달할 수 있다고 보고한 이후 본격적으로 연구되기 시작하였다.4~7) 미생물연료전지기술은 하폐수처리를 위한 미래의 2P3L (2P : Production of clean water and electric power, 3L : Low operation cost, Low sludge production and Low carbon dioxide emission)기술이라 할 수 있다. 이것은 미생물연료전지의 원료로 하폐수에 함유된 유기물을 이용한다면 하폐수를 처리하여 청정한 처리수를 생산함과 동시에 원료에 대한 대가 지불 없이 전기를 생산할 수 있다는 것을 의미한다. 또한, 미생물연료전지에서 유기물은 혐기성상태에서 분해되기 때문에 폭기 등을 위한 별도의 운전비용이 필요하지 않으며,7) 음극표면의 전기적으로 활성을 가진 미생물은 수율이 낮아 슬러지 생산량이 상대적으로 크지 않으며,8,14) 혐기성공정이기 때문에 발생하는 이산화탄소는 쉽게 포집하여 방출을 막을 수 있음을 나타낸다. 지난 10여년 동안 미생물연료전지 연구의 주요 관심사는 하폐수에 함유된 유기물로부터 생산하는 전력을 극대화하는 것이었으며, 최근 들어 괄목할 만한 연구성과들이 보고되고 있다. | |
미생물연료전지란 무엇입니까? | 미생물연료전지는 유기물에 함유된 화학에너지를 전기적으로 활성을 가진 미생물의 촉매작용을 이용하여 전기에너지로 직접 변환시키는 새로운 형태의 에너지 변환장치이다. 미생물연료전지는 음극과 양극을 각각 담지하고 있는 음극 반응조와 양극반응조 그리고 이들을 공간적으로 분리하여 구분시키는 분리막, 음극과 양극을 도선으로 연결한 회로로 구성된다. |
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