重力出流式DMBR处理生活污水的研究

采用重力出流式动态膜生物反应器(DMBR)处理生活污水,重点探讨了有机负荷、DO、pH等因素对污染物去除效果的影响及延缓膜污染的措施.结果表明:该系统对SS的去除效果很好,出水SS基本为零,但对TP的去除率仅为40%左右;耐冲击负荷性能良好,对COD、氨氮的去除效果均保持稳定;在DO、pH得到适当控制时,系统对COD、NH3-N的去除率分别可达94.2%、92.1%;沉淀区的污泥沉降作用和膜组件区的曝气作用可以有效减缓膜污染速度.

Dynamic Membrane Bioreactor with Gravity Flow for Treatment of Domestic Sewage

Dynamic membrane bioreactor(DMBR) with gravity flow was used to treat domestic sewage,and the influence of organic load,DO,pH on the pollutant removal and the measures to retard the membrane fouling were discussed.The results indicate that the system is effective to remove SS,and the effluent SS is nearly zero,but the TP removal rate is only 40% or so;the system resistance to shock loading is excellent,and the removal efficiencies of COD and NH3-N are stable;when DO and pH are suitable,the removal rates of ...