硝化污泥低温冲击强化试验

采用完全好氧式膜生物反应器富集耐低温硝化污泥，通过低温冲击强化试验研究硝化污泥的耐低温特性。结果表明，低温对硝化污泥中微生物的群落多样性影响较大，温度越低，微生物多样性越低。低温强化组投加了耐低温高硝化菌含量硝化污泥，使得硝化菌在反应器内生长趋势良好，对低温冲击的恢复更有效果，且低温硝化污泥比中温硝化污泥具有更好的氨氮及亚硝氮去除效果。

Enhancement Test of Low Temperature Impact on Nitrifying Sludge

The low temperature resistance of nitrifying sludge was studied through low temperature impact enhancement test using complete aerobic membrane bioreactor to enrich low temperature resistant nitrifying sludge. The results showed that low temperature had a great influence in microbial community diversity. The lower the temperature was, the lower the microbial diversity was. When adding high content of nitrifying bacteria to low temperature resistant nitrifying sludge, nitrifying bacteria grew well in the reactor and had more effect on the recovery of low temperature impact. Low temperature nitrifying sludge had better removal effect on ammonia nitrogen and nitrite nitrogen than medium temperature nitrifying sludge did.