Kinetic characteristics of bacterial azo-dye decolorization by pseudomonas luteola

摘要

A pseudomonas luteola strain expressing azoreductase activity was utilized to remove the color of an azo dye (reactive red 22) from contaminated solutions. The effects of substrate concentrations, medium compositions, and operation parameters (e.g., pH, temperature, dissolved oxygen, etc.) on decolorization of the azo dye by a p.luteola strain were systematically investigated to reveal the key factors that dominate the performance of azo-dye decolorization.