曝气量对生物膜法短程硝化反硝化工艺的影响研究

In this paper, starting and process control of autotrophic denitrification biofilm process on low-carbon conditions was studied. The large number of databases showed when the ammonia concentration of influent was 70 - 190mg / L, the NO2-/NO3- maintained the level of 79 ± 2%, the system was stable as the concentration of ammonia ranged from 70 mg / L to 190 mg / L, but the removal rate of ammonia and total nitrogen decreases; Optimal HRT was 8h; Best pH was8.0; DO was a key factor in nitrite accumulation, the system runs well when DO was in the 0.8-1.0mg / L; When the organic content was not higher than 100mg / L, the impact on the system was smallest; microorganisms in the system grew well on 28 ℃.