GROWTH AND OPTIMIZATION PROCESSES OF MIXED MICROBIAL POPULATION DEGRADING CHRYSENE

Authors : Amechi Kingsley ANI, Felix EZEUGWU, Ebere OCHIN

Pages : 740-757

View : 18 | Download : 6

Publication Date : 2018-09-01

Article Type : Research Paper

Abstract :The response surface methodology insert ignore into journalissuearticles values(RSM); of chrysene removal was studied using mixed microbial population. The effects of process factors such as initial chrysene concentration, agitation rate and pH on chrysene removal were also investigated. Maximum chrysene removal rates of 60 and 50% were achieved at 300rpm agitation rate and pH 8, respectively. The numerical optimization process indicated that the optimum values for agitation rate, pH and initial chrysene concentration were 334.3rpm, 8.8 and 40.6mg/l, respectively with desirability of 0.955. The second order quadratic model was statistically significant for the chrysene removal process with good agreement between R² insert ignore into journalissuearticles values(0.9642);, adjusted R² insert ignore into journalissuearticles values(0.9320); and predicted R² insert ignore into journalissuearticles values(0.8289);. Finally, the results obtained from this study highlighted the optimal conditions for chrysene removal from aqueous medium.
Keywords : chrysene, chrysene