An efficient way to enhance the total nitrogen removal efficiency of the Anammox process by S0-based short-cut autotrophic denitrification

摘要: Abstract In order to reduce the amount of NO3−–N generated by Anammox process, and alleviate competition between denitrification for NO2−–N in a single reactor, preference S0 reacting with coexisting sulfur autotrophic denitrifying (SADN) process coupling effect short-cut SADN were studied. The results showed that preferentially reacted NO3− produce NO2−–N, then when was insufficient, which could effectively bacteria (SADNB) (AnAOB) NO2−–N. After 170 days operation, S0-SADN first successfully achieved. SADNB converted into once again available AnAOB. total nitrogen removal efficiency eventually stabilized at over 95%, effluent controlled within 10 mg/L, high NH4+–N wastewater treated process. Microbial community analysis further Candidatus Brocadia Thiobacillus functional microorganisms AnAOB SADNB.