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NTIS 바로가기멤브레인 = Membrane Journal, v.23 no.1, 2013년, pp.24 - 44
조일형 (경기대학교 환경에너지시스템공학과 하.폐수고도처리기술개발사업단) , 김지태 (경기대학교 환경에너지시스템공학과 하.폐수고도처리기술개발사업단)
The MBR technology has evolved rapidly over the past two decades with significant gains in performance and reliability, and reductions in costs. Membrane bioreactors (MBR) technology is widely recognised as offering a key option for enhanced wastewater treatment or reuse. The objective of this paper...
핵심어 | 질문 | 논문에서 추출한 답변 |
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분리막 생물반응기의 장점은 무엇인가? | 분리막 생물반응기(Membrane Bio-Reactors; MBR)는기존의 재래식 활성슬러지 공정(Conventional Activated Sludge; CAS)보다 소요부지 면적이 적고 수질규제에 능동적으로 대응할 수 있으며 효율적으로 시스템을 운 영할 수 있는 것으로 평가된다. 또한 인구증가와 도시 화로 인해 물 수요의 증가로 보다 엄격해지는 수질규제에 맞추기 위해 MBR 기술은 지속적으로 증가될 것으로 전망하고 있다[1]. | |
침지식 분리막은 무엇으로 나뉘는가? | Table 1은 국내⋅외 상업용 MBR 현황을 침지식와순환식 방식에 따라 제조사별로 제품을 제시하였다. 우선 침지식 분리막은 평판형(Flat sheet type)과 중공사형 (Hollow fiber type)으로 나뉜다. 세계적으로 침지식 평판형 분리막의 공급사(제조사)는 약 16개사로 파악되고 상용화 제품은 약 20개로 나타났다. | |
유럽의 MBR 시장에 영향을 미치는 긍정적인 요인에는 무엇이 있는가? | Fig 1은 유럽의 MBR 시장에 영향을 미치는 긍정적인 요인과 제한요인을 제시하였다. 긍정적인 성장요 인으로는 병원성 미생물(pathogenic micro-organism) 관리와 수질강화를 위해 1976년에 제정되어 2006년에 개정된 「EC Bathing Water Directive」이 중요한 성장계기가 되었다. 또한 도시 하수 처리수의 병원성 세균, 영양물질(N, P) 및 유해물질 등 부정적인 환경영향을 최소화 하기 위해 처리시설의 용량과 수계의 민감도에 따라 수준별로 방류수 허용치를 규제해야 한다는 내용으로 1995년에 시행된 「Urban Wastewater Treatment Directive」 등도 중요한 성장배경 중 하나이다. 특히 「EU Water Framework Directive」는 국가의 범위를 넘어서 유럽전 체의 수자원 보호와 효율적 이용을 도모하는 계획으로 평가된다. 이러한 제도적 여건 하에서 수자원 보호는 물론 대체수자원 확보 측면에서 MBR 공정이 효율적인 기술 대안으로 자리 잡고 있다[2]. |
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