不同C/N对气升式内循环膜反应器的脱氮除磷的影响

EFFECT OF DIFFERENT C/N ON INNER LOOP AIRLIFT MEMBRANE REACTOR FOR REMOVING NITROGEN AND PHOSPHORUS

提出了一种新型的气升式内循环膜反应器的设计构想,利用曝气来实现混合液在厌氧区和好氧区的循环,采用变液位间歇交换模式在厌氧区创造厌氧、缺氧交替环境,通过加强反硝化除磷过程实现污水同步脱氮除磷。对气升式内循环膜反应器进行了初步的研究,考察了不同m(C)/m(N)对脱氮除磷的影响。结果表明,在高的m(C)/m(N)(有机碳源和无机氨氮的质量比)条件下,TN、COD和PO43--P的去除率可以分别达到85%、95%和95%,该反应器需要高含量的碳源;在周期试验表明该反应器中具有反硝化聚磷菌,并且了解到了TN、COD和PO43--P等污染物的去除过程。

Proposed a new type of aidift inner loop membrane reactor designed concept, use the aeration to the circulation of the mixture in the anaerobic and aerobic area, the changed liquid level intermittent exchange mode create anaerobic/anoxic in the anaerobic area. Through the strengthening of the denitrifying phosphorus removal process achieve simultaneous nitrogen and phosphorus removal in Sewage.This airlift inner loop membrane reactor conducted a preliminary inquiry.Investigated the effects of different m（C）/m（N） of nitrogen and phosphorus removal. The results show that under the high m（C）/m（N） conditions, removal efficiency of TN, COD and PO4^3--P can reach 85%, 95% and 95%, the reactor requires high concentrations of carbon source. In cycle experiment, the experimental results show that the reactor with the DPB （denitrifying phosphorus removal bacteria）, and learned that the removal of TN, COD and PO4^3--P and other pollutants.