Biological treatment of wastewater containing chlorinated phenols by a mixed culture = 복합미생물제재를 이용한 염소화 페놀계 폐수의 생물학적 처리

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Title
Biological treatment of wastewater containing chlorinated phenols by a mixed culture = 복합미생물제재를 이용한 염소화 페놀계 폐수의 생물학적 처리
Author(s)
Wan Seok Lee; Sang Wook Jung; Chan Sun Park; Byung Dae Yoon; Jang Eok Kim; Hee Mock Oh
Bibliographic Citation
Korean Journal of (Applied) Microbiology & Biotechnology, vol. 29, no. 2, pp. 115-120
Publication Year
2001
Abstract
The biodegradation of chlorinated phenols in an artificial wastewater was investigated using a mixed culture. The mixed culture was composed of 8 microorganisms isolated from the soil contaminated with various chlorinated phenols. Pseudomonas sp. BM as a main constituent of a mixed culture was Gram-negative, catalase- and oxidase-positive, and rod-shaped, and did not grow at 41°C. It degraded 99% of initial 500 mg/l of pentachlorophenol (PCP) in the minimal salts medium as a sole source of carbon and energy within 3 days. The degradation efficiency of Pseudomonas sp. BM was not affected by the other organic carbon and nitrogen compounds. Pseudomonas sp. BM was able to grow in a broad range of pH 5 - 8, and degrade 2,000 mg/l PCP. In the experiment with an artificial wastewater containing chlorinated phenols, the degradation efficiency of the mixed culture was the range of 73% (2,4-dichlorophenol) -96% (2-chlorophenol) during an incubation of 7 days. In a continuous culture experiment, the degradation efficiency of mixed culture plus activated sludge was about 2 times higher than that of the control containing only activated sludge. These results indicate that it is possible to apply the mixed culture to other wastewaters containing chlorinated phenols.
Keyword
biodegradationchlorinated phenolspentachlorophenolPseudomonas sp. BM
ISSN
0257-2389
Publisher
Korea Soc-Assoc-Inst
Type
Article
Appears in Collections:
Jeonbuk Branch Institute > Immunoregulatory materials Research Center > 1. Journal Articles
Synthetic Biology and Bioengineering Research Institute > Cell Factory Research Center > 1. Journal Articles
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