International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2016, Volume : 4, Issue : 5
First page : (175) Last page : (181)
Article doi: http://dx.doi.org/10.18782/2320-7051.2373
Effect of pH and Concentration of Phenol on Degradation Potential of Selected Bacterial Strains from Effluent Treatment Plant of Coir Industry, Kerala, India
Sowparnika* S., Rajani V. and Aswathy R.
PG Department of Environmental Sciences, All Saints’ College, Thiruvananthapuram, Kerala, India
*Corresponding Author E-mail: sowbi93@gmail.com
Received: 8.09.2016 | Revised: 20.09.2016 | Accepted: 25.09.2016
ABSTRACT
Phenols are highy toxic components that are being deposited at various areas by industrial activities and are seen in water bodies. Phenol-degrading bacteria exist widely in the environments. The aim of this study was to isolate bacterial strains capable of degrading phenol from effluent treatment plant of coir industry, Kerala and to study their phenol degrading capacity and growth when subjected to different pH. For the study, three different pH conditions were selected- pH5, pH7 and pH9. From the isolated bacterial strains, 5 most potent strains were selected for the study (Brucella sp, Aquaspirillum sp, Erwinia sp, Aeromonas sp and Moraxella sp). As the result of the study, it was clear that the selected 5 bacterial strains were able to survive and gave maximum degradation up to 800 mg/L phenol. The growth of bacteria and phenol concentration in the media showed the inverse proportion with each other. From the preliminary analysis, it can be observed that the most potent strains were Brucella sp and Aeromonas sp. When the pH of the medium was optimum, bacterial strains gave maximum degradation. At the same time, there observed a change in their growth and degradation potential with varying pH. Waste water from Coir industry contains a variety of substances including phenolic components. Their degradation mechanism was examined in a series of different phenol concentrations. Serial exposure to increasing level of phenol concentration can be used to determine acclimatisability of a particular isolate. Future studies should be carried out to isolate more potent useful microbes from various industrial effluents.
Key words: Brucella sp, Coir Industry, Phenol degradation, pH
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Sowparnika, S., Rajani, V. and Aswathy, R., Effect of pH and Concentration of Phenol on Degradation Potential of Selected Bacterial Strains from Effluent Treatment Plant of Coir Industry, Kerala, India , Int. J. Pure App. Biosci. 4(5): 175-181 (2016). doi: http://dx.doi.org/10.18782/2320-7051.2373
