A Study on Biodegradation of Phenol by Isolated Native Bacteria from Phenol Wastewater

Subject Areas : environmental management

Somaye Eskandary ¹ , Arezoo Tahmourespour ² , Mehran Hoodaji ³

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Received: 2008-07-08 Accepted : 2009-01-08 Published : 2011-12-22

Keywords: Wastewater, : Biodegradation, Phenol, Isolation, Native Bacterias,

Abstract :

Wastewater of coal tar plants is counted wastewater pollutant for the environment. For degradation wastewater, usage of Biological systems is a common way. The percentage of removal pollutant is depended on rare types of microorganisms activities. Some of the materials that are presented in wastewater are inhibitors for microorganisms activities such as: toluene and phenol. Phenol and its compounds are so toxic for human and environment which makes this removal very important. There is a lot of ways for removal or degradation of phenol but the best way is biodegradation. In this study isolated phenol degradation bacteria is from a phenol wastewater of Isfahan steal meal plant. It takes some activities such as diagnosis, phenol removal and adaptation to high concentration of phenol. Results show that one of the isolated bacterias removals is 2233(mg/l) phenol which happens during 96 hours and another happens during 120 hours. By usage different isolated bacteria types which are adapted to high concentration of phenol, degradation of it takes much shorter time