Microbial community of biofilm in BIM-DNBF
One biomass-iron mixture (BIM) filter material based on mixotrophic denitrification mode (heterotrophic and iron-driven autotrophic denitrification) was developed and then used to construct a novel denitrification biological filter (BIM-DNBF) for the nitrogen removal of secondary effluent. As the operation of BIM-DNBF, the dynamics of the microbial community of biofilm in BIM-DNBF were explored.