해양퇴적토에 오염된 다환방향족탄화수소 분해 증진을 위한 bioreactor 조건 연구

Title
해양퇴적토에 오염된 다환방향족탄화수소 분해 증진을 위한 bioreactor 조건 연구
Alternative Title
Development of Bioremediation Techniques of Marine Sediments Contaminated Polycyclic Aromatic Hydrocarbons in ex situ Bioslurry Reactor
Author(s)
정홍배; Tian Yun; 이희순; 권개경; 김상진
KIOST Author(s)
Kwon, Kae Kyoung(권개경)
Publication Year
2005-05-13
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are a kind of toxic environmental pollutant, accumulated usually in marine sediments. Due to the potential hazardous to human, removal of PAHs from sediments has been great concern. In the present sturdy, the effect of microbial inoculation and the supplementation of mixed form cyclodextrin (M-CD) was assessed in the pre-sterilized or unsterilized microcosms for optimizing operational conditions of bioslurry reactor for ex situ bioremediation of sediment contaminated by PAHs. The activity og electron transport system was increased by the addition of M-CD. The degradation rate of PAHs in sterilized microcosms as app. 9-20% by the inoculation of single strain and 24-37% by the inoculation of microbial consortium supplemented with 1% M-CD, respectively. The degradation was not observed in microcosms without sterilization under the same conditions. Signals of inoculated bacteria were decreased to detection limit after 2 days in the microcosms without M-CD. As a conclusion, microbial inoculation with appropriate carbon sources and removal of natural flora and grazers are required for the efficient remediation of sediments contaminated by PAHs in ex situ bioreactor.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/31473
Bibliographic Citation
2005년도 한국해양과학기술협의회 공동학술대회, pp.649, 2005
Publisher
한국해양과학기술협의회
Type
Conference
Language
Korean
Publisher
한국해양과학기술협의회
Related Researcher
Research Interests

Acquisition of marine microbial bioresources,Marine microbial diversity,Application study on marine microbes,해양미생물 자원 확보,해양미생물 다양성,해양미생물 기능 활용

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