지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제21권 제2호
- 발행연도
- 2011.1
- 수록면
- 115 - 123 (9page)
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초록· 키워드
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To investigate the effects of pipe materials on biofilm accumulation and water quality, an annular reactor with the sample coupons of four pipe materials (steel, copper,stainless steel, and polyvinyl chloride) was operated under hydraulic conditions similar to a real plumbing system for 15 months. The bacterial concentrations were substantially increased in the steel and copper reactors with progression of corrosion, whereas those in stainless steel (STS) and polyvinyl chloride (PVC) reactors were affected mainly by water temperature. The heterotrophic plate count (HPC)of biofilms was about 100 times higher on steel pipe than other pipes throughout the experiment, with the STS pipe showing the lowest bacterial number at the end of the operation. Analysis of the 16S rDNA sequences of 176cultivated isolates revealed that 66.5% was Proteobacteria and the others included unclassified bacteria, Actinobacteria,and Bacilli. Regardless of the pipe materials, Sphingomonas was the predominant species in all biofilms. PCR-DGGE analysis showed that steel pipe exhibited the highest bacterial diversity among the metallic pipes, and the DGGE profile of biofilm on PVC showed three additional bands not detected from the profiles of the metallic materials. Environmental scanning electron microscopy showed that corrosion level and biofilm accumulation were the least in the STS coupon. These results suggest that the STS pipe is the best material for plumbing systems in terms of the microbiological aspects of water quality.
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참고문헌 (25)
참고문헌 신청
APHA / 1998 / Standard Methods for the Examination of Water and Wastewater / American Public Health Association, American Water Works Association, Water Environment Federation
Altschul, S. F / 1990 / Basic local alignment tool / J. Mol. Biol 215 : 403 ~ 410
Baribeau, H / 2001 / Changes in chlorine and DOX concentrations in distribution systems / J. Am. Water Works Assoc 93 : 102 ~ 114
Brocca, D / 2002 / Identification of organic compounds migrating from polyethylene pipelines into drinking water / Water Res 36 : 3676 ~ 3680
Camper, A. K / 1996 / Factors limiting microbial growth in distribution systems Laboratory and pilot-scale experiments / American Water Works Association Research Foundation
Altschul, S. F / 1990 / Basic local alignment tool / J. Mol. Biol 215 : 403 ~ 410
Baribeau, H / 2001 / Changes in chlorine and DOX concentrations in distribution systems / J. Am. Water Works Assoc 93 : 102 ~ 114
Brocca, D / 2002 / Identification of organic compounds migrating from polyethylene pipelines into drinking water / Water Res 36 : 3676 ~ 3680
Camper, A. K / 1996 / Factors limiting microbial growth in distribution systems Laboratory and pilot-scale experiments / American Water Works Association Research Foundation
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