%0 Journal Article
%T Biodegradation of phenol by Pseudomonas pictorum on immobilized with chitin
%A G Annadurai
%A LY Ling
%A J Lee
%J African Journal of Biotechnology
%D 2007
%I Academic Journals
%X Biodegradation of phenol using Pseudomonas pictorum (ATCC 23328) a potential biodegradant of phenol was investigated under different operating conditions. Chitin was chosen as a support material and then partially characterized physically and chemically. The pH of the solution was varied over a range of 7 ¨C 9. The maximum adsorption and degradation capacity of bacteria immobilized with chitin at 30oC when the phenol concentration was 0.200 mg/L is at pH 7.0. The results showed that the equilibrium data for all phenol-degradation sorbent systems fitted the Langmuir, Freundlich and Redlich-Peterson model best. Kinetic modeling of phenol degradation was done using the pseudo-first order and pseudo-second order rate expression. The biodegradation data generally fit the intraparticle diffusion rate equation from which biodegradation rate constant, diffusion rate constant were determined.
%U http://www.ajol.info/index.php/ajb/article/view/56197