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오염퇴적물에 함유된 PCBs의 생물분해 특성

Title
오염퇴적물에 함유된 PCBs의 생물분해 특성
Other Titles
Biodegradation of PCBs into Contaminated Dredged Sediments
Author
배우근
Keywords
Dredged sediment; PCBs; Biodegradation; 준설퇴적물; 유기염소계 화합물; 생물학적 분해
Issue Date
2004-06
Publisher
한국지하수토양환경학회
Citation
한국지하수토양환경학회지, v. 9, No. 2, Page. 41-47
Abstract
본 연구는 혐기성조건에서 오염퇴적물 내 PCBs의 생물학적 분해와 PCBs의 생물 분해시 우점종인 미생물을 분리하고자 하였다. PCBs의 분해 미생물을 얻기하기 위해서 180일간 집식배양을 수행하였으며, 초기 농도를 1.6 ppm과 0.7 ppm으로 주입하였다. 180일 후의 PCBs의 분해능은 각각 80-87%, 57-71%의 제거효율을 보였다. 집식 배양에서 우점화된 PCBs 분해 미생물에 의한 PCBs의 분해능을 조사하였다. 그 결과, 초기 PCBs 농도 1.3 ppm에서 약 20일 동안, 80%의 높은 분해효율을 보였다. 또한, 집식 배양된 PCBs 분해 미생물을 순수분리하였으며, 미생물 동정은 Pseudoxanthomonas 속으로 밝혀졌다. This research in the degradation of polychlorinated biphenyls(PCB) has focussed on the use of experimental enrichment cultures to obtain PCB-degrading communities and identification of PCB-degrading bacteria according to pure culture. During 180 days, enrichment culture was performed to obtain PCB-degrading bacteria and initial concentration was injected 1.6 ppm. 0.7 ppm, respectively. After 180 days of enrichment culture, PCBs was removed 80-87% and 57-71 %. Biodegradation of PCBs was studied according to dominated PCB-degrading bacteria. Biodegraddation of PCBs was 80% in initial concentration of PCBs for 20days, enrichment cultured PCB-degrading bacteria was isolated by pure culture and it was verified to Pseudoxanthomonas sp.
URI
http://scholar.dkyobobook.co.kr/searchDetail.laf?barcode=4010009166423#https://repository.hanyang.ac.kr/handle/20.500.11754/151041
ISSN
1598-6438
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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