Kinetics of phenol degradation and growth of predominant Pseudomonas species in a simple batch stirred tank reactor

作者：Saravanan P^*; Pakshirajan K; Saha P

来源：Bulgarian Chemical Communications, 2011, 43(4): 502-509.

• Batch stirred tank reactor
• biodegradation
• phenol
• substrate inhibition models
• Pseudomonas sp.

A culture predominantly consisting of the Pseudomonas species was isolated from a sewage treatment plant and was utilized to study phenol degradation and culture growth kinetics. The culture was capable of completely degrading phenol at a maximum initial concentration up to 400 mg/l in a simple batch stirred tank reactor. The maximum time taken to degrade phenol at this concentration level was 194 h. Kinetics of phenol degradation at various initial concentrations in the media largely exhibited zero order rate with a maximum value of the coefficient of determination (R-2) = 0.99 at 400 mg/l of phenol. Deterministic models such as those of Haldane, Han-Levenspiel, Luong, Edward, Yano and Koga, Tseng and Wayman were employed to fit the data of substrate inhibition on the kinetics of culture growth and phenol degradation. All models tested, except the Tseng and Wayman model fitted well the experimental data.

• 出版日期2011