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- W2271896411 abstract "in English) This thesis examined the biological treatment of gas streams containing Benzene, Toluene, Ethylbenzene and o-Xylene using a spouted bed bioreactor. Organic-degrading bacteria, Pseudomonas putida, were immobilized in Polyvinyl Alcohol matrices. An initial investigation of Toluene degradation was carried out by studying the reduction rate of dissolved oxygen as a function of initial Toluene concentration, residence time, gas flow rate, temperature, Polyvinyl Alcohol volume fraction % and pH. A parametric study for the continuous biodegradation of Benzene, Toluene, Ethylbenzene and o-Xylene was carried out to evaluate the effect of different operating parameters on the performance of the bioreactor for dual and multi-component mixtures. The effects of Polyvinyl Alcohol volume fraction in the bioreactor, air flow rate, initial gases concentration, operating temperature, water pH and competitive biodegradation (single, dual and multi-components) on the biodegradation rate were evaluated. In order to determine the best geometry that would provide good mixing and high removal, a larger volume spouted bed bioreactor was built, tested, and optimized for the biodegradation process. Response Surface Methodology was used to optimize the biodegradation by Pseudomonas putida immobilized in Polyvinyl Alcohol matrices in spouted bed bioreactor. The parameters investigated included the contaminated air flow rate, operating temperature, Polyvinyl Alcohol volume fraction, and water pH. Maximum biodegradation efficiency was predicted to occur at an air flow rate of 500 ml/min, an" @default.
- W2271896411 created "2016-06-24" @default.
- W2271896411 creator A5013661374 @default.
- W2271896411 creator A5089915065 @default.
- W2271896411 date "2014-01-01" @default.
- W2271896411 modified "2023-09-24" @default.
- W2271896411 title "Optimization of the Biodegradation of BTEX by Pseudomonas Putida Immobilized In PVA Gel" @default.
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