alexa Biodegradation of Phenol by Native Bacteria Isolated From Dioxin Contaminated Soils
ISSN: 2155-6199

Journal of Bioremediation & Biodegradation
Open Access

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Research Article

Biodegradation of Phenol by Native Bacteria Isolated From Dioxin Contaminated Soils

Han Ba Bui1, Lan Thi Nguyen2 and Long Duc Dang2*
1Department of Biotechnology, Faculty of Chemical Engineering, Da Nang University of Technology, The University of Da Nang, Da Nang, Vietnam and Faculty of Biotechnology and Environmental Technology, Duc Tri College, Da Nang, Vietnam
2Department of Biotechnology, Faculty of Chemical Engineering, Da Nang University of Technology, The University of Da Nang, Da Nang, Vietnam
Corresponding Author : Long Duc Dang
Department of Biotechnology
Faculty of Chemical Engineering
Da Nang University of Technology
The University of Da Nang
Da Nang, Vietnam
Tel: (+84) 01643 733 070
E-mail: [email protected]
Received September 14, 2012; Accepted September 28, 2012; Published September 30, 2012
Citation: Bui HB, Nguyen LT, Dang LD (2012) Biodegradation of Phenol by Native Bacteria Isolated From Dioxin Contaminated Soils. J Bioremed Biodeg 3:168. doi: 10.4172/2155-6199.1000168
Copyright: © 2012 Bui HB, et al. This is an open-a ccess article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

In this investigation, aerobic bacteria in soil contaminated with dioxin (taken from Da Nang airport’s area in
Vietnam) were isolated and selected for their ability to degrade phenol using enrichment technique containing phenol as sole source of carbon and energy (100 mg/L phenol in a mineral salt medium). Four strains (designated D1.1, D1.3, D1.4, and D1.6) were obtained and characterized. The results showed that these bacteria were highly effective for the removal of phenol. After 120 hours of culture, strain D1.4 degraded 54.84% and 44.19% phenol from the initial concentrations of 100 mg/L and 1000 mg/L, respectively; strain D1.6 degraded 66.45% of phenol from the initial concentration of 1500 mg/L. The combination of those bacteria in the same medium had a positive effect on the phenol degradation activity. The outcome of the study can contribute new useful resources for treatments of wastewater and soils contaminated with phenolic wastes.

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