一体式A/O复合反应池脱氮性能的研究

Research on nitrogen removal performance of integrated A/O compound reaction tank

结合太原市经济技术开发区污水处理厂工艺性能试验,重点考察了一体式A/O复合反应池的环境温度、C/N比和硝化液回流比对一体式A/O复合反应池脱氮效果的影响,结果表明:在20℃～35℃时,NH3-N的去除率在70%～80%;当C/N值为3时,NH3-N去除率为79%左右,平均出水TN为12.1 mg/L;当回流比为200%时,NH3-N去除率为98.6%,TN去除率为75.5%。

Combining with the technology performance test of the sewage treatment plant in Taiyuan economic technology development area, the paper mainly examines the impacts of environment temperature, C/N ratio and nitration fluid backflow of integral A/O complex reaction tank. Results show that the removal ratio of NH3-N is 70% - 80% with the temperature of 20℃ - 35 ℃, the removal ratio of NH3-N is about 79% when the value of C/N is 3, and the TN of average water amount is 12.1 mg/L, then the back flow ratio is 200%, the removal ratio of NH3-N is 98.6%, and the removal ratio of TN is 75.5%.