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Title 

Biological treatment of wastewater containing chlorinated phenols by a mixed culture

 

복합미생물제재를 이용한 염소화 페놀계 폐수의 생물학적 처리

Authors 

Wan Seok LeeSang Wook JungChan Sun ParkByung Dae YoonJang Eok KimHee Mock Oh

Publisher 

Korean Journal of Applied Microbiology and Biotechnology

Issue Date 

2001

Citation 

Korean Journal of Applied Microbiology & Biotechnology, vol. 29, no. 2, pp. 115-120

Keywords 

biodegradationchlorinated phenolspentachlorophenolPseudomonas sp. BM

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.

ISSN 

0257-2389

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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