생명과학회지 (Journal of Life Science)

  • 제22권9호
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  • Pages.1237-1242
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  • 2012
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  • 1225-9918(pISSN)
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  • 2287-3406(eISSN)
한국생명과학회 (Korean Society of Life Science)
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생물활성탄 부착세균 분포 실태에 관한 연구

A Study of the Distribution of a Bacterial Community in Biological-Activated Carbon (BAC)

  • 박홍기 (부산광역시 상수도사업본부 수질연구소) ;
  • 정은영 (부산광역시 상수도사업본부 수질연구소) ;
  • 차동진 (부산광역시 상수도사업본부 수질연구소) ;
  • 김정아 (부산광역시 상수도사업본부 수질연구소) ;
  • 빈재훈 (부산광역시 상수도사업본부 수질연구소)
  • Park, Hong-Ki (Water Quality Institute, Water Works HQ of Busan Metropolitan City) ;
  • Jung, Eun-Young (Water Quality Institute, Water Works HQ of Busan Metropolitan City) ;
  • Cha, Dong-Jin (Water Quality Institute, Water Works HQ of Busan Metropolitan City) ;
  • Kim, Jung-A (Water Quality Institute, Water Works HQ of Busan Metropolitan City) ;
  • Bean, Jae-Hoon (Water Quality Institute, Water Works HQ of Busan Metropolitan City)
  • 투고 : 2012.08.02
  • 심사 : 2012.09.17
  • 발행 : 2012.09.30
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초록

정수처리 공정에서 생물활성탄(BAC) 공정은 미생물의 유기물 제거능을 극대화시킨 일종의 생물여과 공정이다. 본 연구는 낙동강 원수를 이용하여 재질이 다른 생물활성탄을 사용하고 있는 정수장을 대상으로 세균 군집을 조사하였다. 실험결과 석탄계 재질의 BAC 부착세균 생체량 및 활성도가 각각 $1.20{\sim}34.0{\times}10^7$ CFU/g, 0.61~1.10 mg-C/$m^3{\cdot}h$의 범위를 보여 세균 생체량과 DOC 제거율은 석탄계 재질이 가장 높은 것으로 나타났다. 부착세균을 동정한 결과 Pseudomonas 속이 우점하였으며, 그 다음으로 Chryseomonas 속, Flavobacterium 속, Alcaligenes 속, Acinetobacter 속, Sphingomonas 속 등의 순으로 동정되었다. 그리고 Pseudomonas cepacia는 석탄계 재질, Chryseomonas luteola는 목탄계 재질의 우점세균으로 조사되었다.

The use of biological-activated carbon (BAC) processes in water treatment involves biofiltration, which maximizes the bacteria's capabilities to remove organic matter. In this study, the distribution of the bacterial community was assessed in response to different types of BAC processes applied downstream in the Nakdong River. The bacterial biomass and activity were $1.20{\sim}34.0{\times}10^7$ CFU/g and 0.61~1.10 mg-C/$m^3{\cdot}hr$ in coal-based BAC, respectively. The attachment of the bacterial biomass and the removal efficiency of the organic carbon were greatest with the coal-based activated carbon. The bacteria attached to each activated carbon material were detected in the order of Pseudomonas genus, Chryseomonas genus, Flavobacterium genus, Alcaligenes genus, Acinetobacter genus, and Spingomona genus. Pseudomonas cepacia was the dominant species in the coal-based materials, and Chryseomonas luteola was the dominant species in the wood-based material.

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