摘要
模拟SBR工艺处理分散型校园生活污水停止运行后的重启过程,研究反应器系统的恢复特征。在SBR稳定运行的基础上,停止运行反应器36 d后重新启动。试验结果表明,系统内污泥质量浓度(MLSS)在重启后第13天左右基本恢复到停止运行前污泥MLSS质量浓度(3 418 mg/L);系统的COD去除性能、硝化性能在重启后第5天左右基本恢复至停止运行前的平均去除水平(停止运行前COD和NH4+-N的平均去除率分别为86.09%和94.25%);系统的脱氮除磷性能在重启后第3天基本恢复到停止运行前水平(停止运行前TN和TP的平均去除率分别为:50.64%和77.90%)。因此,通过模拟SBR工艺停止运行后重启的恢复特征研究可知,分散型校园生活污水处理设施停止运行后重新启动迅速能恢复其处理能力。
This paper simulated the restart process of the SBR plant treating distributed campus life sewage after a stop, researching the recovery characteristics. Based on SBR steady operation, this system was ceased for 36 days and then restarted. The results showed that after SBR was restarted for nearly 13 days, MLSS of SBR recovered to the level of before ceased （MLSS=3 418 mg/L）. The recovery of COD and nitrification performance needed about 5 days （Before the system was stopped, the average removal efficiency for COD and NH4＋-N were 86.09% and 94.25%,respectively）, meanwhile the nitrogen removal and phosphorus removal needed 3 days roughly （Before the system was ceased, the average removal efficiency for TN and TP were 50.64% and 77.90%, respectivelY）. As a result, SBR treating domestic wastewater of decentralized campus could recover rapidly after it was stopped.
出处
《水处理技术》
CAS
CSCD
北大核心
2012年第12期111-114,共4页
Technology of Water Treatment
基金
国家水体污染控制与治理科技重大专项(2009ZX07212-002-004-003)
