新型一体化反应器的启动及其脱氮性能初试

提出一种新型的一体化生物膜反应器用于生活污水脱氮的处理,考察了反应器启动阶段出水的变化.生物膜驯化成熟后,考察了系统对总氮的去除效果,结果表明在水力停留时间为24 h,进水总氮37.69 mg/L时,反应器总氮去除率达到85％.此状态下,对反应器单个运行周期的脱氮特性进行了考察,结果表明连续出水水质稳定,氨氮去除率达到98％,出水氨氮基本维持在1 mg/L以下.

Start up and Nitrogen Removal Performance of a New Integrated Reactor

A novel integrated biofilm reactor for nitrogen removal of domestic wastewater was proposed,and the effluent change of the reactor was investigated during the start-up phase.The effect of TN(total nitrogen) removal was investigated in the system after the biofilm acclimation was mature.With the influent TN is 37.69 mg/L and 24 h of HRT(Hydraulic Retention Time),the TN removal efficiency is 85%.The investigation ofnitrogen variation in one operation cycle shows that the effluent quality was steady and NH+4-N(ammonia nitrogen) removal efficiency reached 98% with the the concentration of NH+4-N of the effluent less than 1 mg/L.