Study on Kinetic Model of Immobilized Dominant Bacteria for Treatment of COD in Coke Plant Wastewater

Abstract

Dominant bacteria of coke plant wastewater were immobilized by sodium alginate for the treatment of chemical oxygen demand (COD) in coke plant wastewater, and the kinetic model was established. The experimental result indicates that the degradation rates of COD in coke plant wastewater obey Monod equation in the concentration range of 300–1,530 mg L⁻¹. The model parameters were determined by experiment and the value of r′_S,max and K_S are 239.4 and 1,175.8, respectively. These data would supply useful information for designing immobilized bioreactor.

Keywords:

• coke plant wastewater
• immobilized dominant bacteria
• kinetic model
• parameters

Acknowledgments

This work was financially supported by the Biochemical Engineering Program of 211 Project in Taiyuan University and Technology, Shanxi Nature Science Foundation (No. 20051017), Shanxi Returned Scholar Research Project (No. 2005-21), and Innovation team program in MOE (IRT0517, NCET-05-0267), China.