To strengthen the microbial immobilization technology in the coking wastewater applications,five advantage denitrifying bacterias from the sludge of coking wastewater were selected.The advantage denitrifying bacteria were fixed on the rice husk containing coking wastewater to prepare immobilization products by using solid state fermentation technology.The TTC dehydrogenises activity were measured as an indicator for the solid-state fermentation of biomass,and then the fermentation conditions of denitrifying...