多段式A/O-SBR工艺处理列车集便器污水研究

TREATMENT OF THE FECAL WASTEWATER FROM THE TRAIN TOILET BY MULTISTAGE A/O-SBR PROCESS

应用序批式活性污泥反应器(SBR)处理列车集便器粪便污水,在结合SBR工艺的运行具有易调控性,在运行期容易调节厌氧-好氧(A/O)工作模式的基础上,对传统SBR工艺进行多段化改进,探讨了多段式A/O-SBR工艺的最佳运行模式;并对比分析了最佳A/O-SBR模式与传统SBR工艺对COD和氨氮的去除效果。结果表明,2段式A/O-SBR为多段式A/O-SBR工艺的最佳运行模式,其对粪便污水中COD和氨氮的平均去除率分别达到76.3%和72.9%。此外,2段A/O-SBR对COD和氨氮的去除率要高于传统SBR工艺。

The application of the sequencing batch reactor（SBR） for treating the fecal wastewater from the train toilet was studied.On the basis of SBR and anaerobic/aerobic（A/O） process,the traditional SBR process is modified to multistage modes and the optimal operating model of multistage A/OSBR models was explored.The comparison of the best multistage A/O-SBR mode and the traditional SBR model of NH3-N and COD removal efficiency was also studied.The results show that two-stage A/O-SBR mode is the best operating mode of all,and the average removal efficiency of COD and NH3-N was 76.3% and 72.9%,respectively.In addition,two-stage A/O-SBR has better NH3-N and COD removal efficiency than the traditional SBR process.