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Yu Wenjuan, Xie Xuehui, Hong Wulin, Liu Jianshe. Kinetics and optimizing immobilization conditions for strain RB5-M1 decolorizing Reactive Black 5[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 1175-1180.
Citation: Yu Wenjuan, Xie Xuehui, Hong Wulin, Liu Jianshe. Kinetics and optimizing immobilization conditions for strain RB5-M1 decolorizing Reactive Black 5[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 1175-1180.
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Kinetics and optimizing immobilization conditions for strain RB5-M1 decolorizing Reactive Black 5

  • 1.

    College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China

  • Received Date: 29/12/2011
    Accepted Date: 10/11/2011
    Available Online: 18/03/2013
    Fund Project:
  • Based on experiments of Aeromonas hydrophila strain RB5-M1 decolorizing Reactive Black 5, the kinetic equations at different initial dye concentrations were discussed. Furthermore, the optimized immobilization conditions were concluded by considering three factors, respectively the mechanical strength, imbedding biomass and the leakage biomass. Results showed that when dyes were added at different initial concentrations of 50, 100, 150, 200, 250 and 300 mg/L, the kinetic equation would be highly correspond with the Monod zero-order reaction equation. As for the immobilization condition, of which cooling temperature is 30℃, the ratio of PVA to sodium alginate is 10∶1, concentration of CaCl2 is 2%, concentration of gelatin is 0.2%, then the immobilized globules could form with higher mechanical strength and embedding biomass. Under the condition of which concentration of CaCl2 is 2%; concentration of gelatin is 0.3%, the ratio of PVA to sodium alginate equals to 9∶2, cooling temperature is 20℃, then immobilized globules could form with lower leakage biomass.
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Kinetics and optimizing immobilization conditions for strain RB5-M1 decolorizing Reactive Black 5

  • Received Date: 29/12/2011
  • Accepted Date: 10/11/2011
  • Available Online: 18/03/2013
Fund Project:

Abstract: Based on experiments of Aeromonas hydrophila strain RB5-M1 decolorizing Reactive Black 5, the kinetic equations at different initial dye concentrations were discussed. Furthermore, the optimized immobilization conditions were concluded by considering three factors, respectively the mechanical strength, imbedding biomass and the leakage biomass. Results showed that when dyes were added at different initial concentrations of 50, 100, 150, 200, 250 and 300 mg/L, the kinetic equation would be highly correspond with the Monod zero-order reaction equation. As for the immobilization condition, of which cooling temperature is 30℃, the ratio of PVA to sodium alginate is 10∶1, concentration of CaCl2 is 2%, concentration of gelatin is 0.2%, then the immobilized globules could form with higher mechanical strength and embedding biomass. Under the condition of which concentration of CaCl2 is 2%; concentration of gelatin is 0.3%, the ratio of PVA to sodium alginate equals to 9∶2, cooling temperature is 20℃, then immobilized globules could form with lower leakage biomass.

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