Please use this identifier to cite or link to this item:
Title: Naphthalene Degradation Kinetics of Micrococcus sp., Isolated from Activated Sludge
Authors: Jegan, J.
Vijayaraghavan, K. 
Senthilkumar, R.
Velan, M.
Keywords: Biodegradation
Microbial kinetics
Micrococcus sp.
Issue Date: Sep-2010
Citation: Jegan, J., Vijayaraghavan, K., Senthilkumar, R., Velan, M. (2010-09). Naphthalene Degradation Kinetics of Micrococcus sp., Isolated from Activated Sludge. Clean - Soil, Air, Water 38 (9) : 837-842. ScholarBank@NUS Repository.
Abstract: Biodegradation of naphthalene by Micrococcus sp., isolated from the effluent of an activated sludge plant, was studied. The effects of pH (5-8), glucose concentration (100-1000 mg/L) and inoculum concentrations (1-5%) on the growth and naphthalene degradation potential of Micrococcus sp. were investigated. Maximum naphthalene degradation and subsequent high microbial growth were observed at optimum pH (pH 7), glucose concentration (500 mg/L) and inoculum concentration (3%). To investigate the maximum naphthalene tolerance potential of Micrococcus sp., very high concentrations of naphthalene (500-5000 mg/L) were used in the presence of non-ionic surfactants. The examined surfactants (Triton X-100 and Tween-80) increased the bioavailability of naphthalene to the microbes and Complete naphthalene degradation by Micrococcus sp. was observed at an initial naphthalene concentration of 500 mg/L. However, the degradation potential decreases as the naphthalene concentration increases. Very high naphthalene concentrations also affected the growth of microbes and the corresponding substrate inhibition kinetics was described using four models (Haldane, Webb, Edward and Aiba). Based on correlation coefficient and percentage error values, all four substrate kinetic models were able to describe the dynamic behavior of naphthalene biodegradation by Micrococcus sp. Biodegradation kinetics of naphthalene by Micrococcus sp. isolated from activated sludge were studied. Different substrate inhibition kinetic models were used to describe behavior of naphthalene degradation. © 2010 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim.
Source Title: Clean - Soil, Air, Water
ISSN: 18630650
DOI: 10.1002/clen.200900148
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Feb 19, 2019


checked on Feb 19, 2019

Page view(s)

checked on Dec 29, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.