摘要
在间歇式反应器（SBR）中经20d驯化后，普通消化污泥具有亚硝化功能．然后接种厌氧颗粒污泥，控制反应条件：温度21℃，pH7．5～8．5，溶解氧（DO）质量浓度0．5—1．0mg／L，25d后完成厌氧颗粒污泥向好氧亚硝化颗粒污泥的转变．好氧亚硝化颗粒污泥具有较好的脱氮效果，一个反应周期内氨氮（NH4^＋-N）去除率达到91．4％，总氮（TN）去除率达到70．6％，亚硝酸盐氮与硝酸盐氮质量浓度比（P（NO2^--N）／p（NO3^--N））〉0．70，反应器实现了同步亚硝化反硝化．
The cultivation of nitrosificated granular sludge was studied. Firstly, the ordinary digested sludge was acclimatized in the sequencing batch reactor（SBR）. It reached nitrogen removal by nitrosification in 20 days. Then, anaerobic granular sludge was inoculated into the SBR. And controlling the reaction conditions are as follows： temperature 21℃, dissovled oxygen（DO） weight concentration 0. 5 mg/L to 1.0 mg/L, pH value 7. 5 to 8. 5. The anaerobic granular sludge was converted to aerobic nitrosificated granules in 25 days. The aerobic nitrosificated sludge granules had high nitrogen removal capacity. In one reaction cycle, the removal rate of NH4^＋- N reached 91.4%, the removal rate of total nitrogeny（TN） reached 70. 6%. The ratio of NO2^-- N to NO3^- - N exceeded 0. 70. Results show that the nitrosification and the denitrification occurr simultaneously on the reactor.
出处
《南京工业大学学报（自然科学版）》
CAS
2008年第6期83-86,共4页
Journal of Nanjing Tech University(Natural Science Edition)
关键词
亚硝化反硝化
颗粒污泥
间歇式反应器
nitrosification and denitrification
granular sludge
sequencing batch reactor
