ASBF 생물반응기를 이용한 COD 및 질소 제거특성

Removal Characteristics of COD and Nitrogen by Aerated Submerged Bio-film(ASBF) Reactor

  • 최영익 (신라대학교 환경공학과) ;
  • 정병길 (동아대학교 환경공학과) ;
  • 손희종 (부산광역시 상수도사업본부 수질연구소) ;
  • 성낙창 (동아대학교 환경공학과)
  • Choi, Young-Ik (Department of Environmental Engineering, Silla University) ;
  • Jung, Byung-Gil (Department of Environmental Engineering, Dong-A University) ;
  • Son, Hee-Jong (Water Quality Research Institute, Waterworks Headquarter) ;
  • Sung, Nak-Chang (Department of Environmental Engineering, Dong-A University)
  • 발행 : 2007.09.30

초록

본 연구의 목적은 pilot scale ASBF(호기성 침지형 생물막) 반응기를 이용하여 용해성 유기물과 질소화합물의 제거실험을 하였으며, 고정생물막 내에서의 용해성 유기물과 질소화합물 제거를 통한 종속영양미생물 및 독립영양미생물의 동적관계를 이해하고 개선하고자 하였다. 또한, 침지형 생물막 표면에 질산화 박테리아의 성장을 촉진시키기 위해 특별하게 설계한 구조를 라군에 추가하여 폐수처리 효과의 강화 가능성을 조사하였다. 침지형 생물막에 공기 기포가 직접적으로 접촉할 수 있도록 하였으며, 특히 낮은 온도에서 ASBF 실험장치의 용해성 유기물과 암모니아성질소 제거효과를 살펴보기 위해 회분식으로 운전하였다. 본 연구의 ASBF 반응조는 향후 용해성 유기물과 질소화합물의 제거를 위해 기존 폐수처리장 뿐만 아니라 신설 폐수처리장에도 확대 적용될 수 있을 것으로 기대 된다.

The objectives of this research are to remove dissolved organic matter and nitrogen compounds by using aerated submerged bio-film(ASBF) reactors in batch systems and improve understanding of dissolved organic matter and nitrogen compounds removal rates with dynamic relationships between heterotrophic and autotrophic bacteria in the fixed-film reactor. This research explores the possibility of enhancing the performance of shallow wastewater treatment lagoons through the addition of specially designed structures. These structures are designed to encourage the growth of a nitrifying bacterial bio-film on a submerged surface. Specially, the effects of cold temperatures on the dissolved organic matter and ammonia nitrogen performance of the ASBF pilot plant was investigated for the batch system. It is anticipated thai the ASBF would be used for a design of biological treatment for removing of dissolved organic matter and nitrogen compounds in new wastewater treatment plants as well as existing wastewater treatment plants.

키워드

참고문헌

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