해양퇴적토에 오염된 다환방향족탄화수소의 생물정화용 fed-batch 형 생물반응기 개발

Title
해양퇴적토에 오염된 다환방향족탄화수소의 생물정화용 fed-batch 형 생물반응기 개발
Alternative Title
Development of the fed-batch bioslurry reactor for the bioremediation of marine sediment contaminated by polycyclic aromatic hydrocarbons
Author(s)
정홍배; 권개경; 김상진
KIOST Author(s)
Kwon, Kae Kyoung(권개경)
Publication Year
2005-10-13
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are a toxic environmental pollutant, accumulated usually in marine sediments. Due to the potential hazardous on ecosystem and human, removal of PAHs from sediments has been great concern. In this study, development of ex situ bioremediation technique using fed-batch bioslurry reactor has been conducted for the cleanup of marine sediments polluted by PAHs. Experimental reactor was consisted of original reactor and derivative reactors that were receiving part (1/10 (A) or 1/5 (B) of working volume) of sediment slurry of original reactor after 1 (d1), 2 (d2), and 3 (d3) days incubation. The activity of electron transport system (ETSA) of original reactor was increased from 5.1±0.1 ㎍-O2/㎖/hr after 1 day of incubation to 27.4±0.3 ㎍-O2/㎖/hr after 2-3 days of incubation. ETSA of d2 & d3 reactors was similar to that of original reactor after 2-3 days of incubation. The degradation rate of PAHs was 81.0-92.7% (A) and 85.1-95.4% (B) at d2 & d3 reactors, respectively. The degradation rate of PAHs was increased with the repetition of treatment. The result implies that fed-batch bioslurry reactor was effective for bioremediation of sediments contaminated by PAHs.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/31300
Bibliographic Citation
한국미생물학회연합회 2005 국제 학술회의, pp.179, 2005
Publisher
한국미생물학회연합회
Type
Conference
Language
English
Publisher
한국미생물학회연합회
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