MLSS和温度对以NO2--N为电子受体的反硝化除磷的影响研究

Influence of MLSS and Temperature on Denitrifying Dephosphatation With NO2--N as the Electron Accepter

对经过长期培养驯化的以NO2^--N为电子受体的反硝化聚磷污泥进行静态烧杯试验，研究了MLSS和温度等因素对反硝化除磷系统处理效果的影响。结果表明，MISS浓度过高或过低都会影响系统对PO4^3--P的去除效果，MLSS为4000mg／L左右时，系统的除磷效果最佳。系统运行的最佳温度为20℃左右，此时系统对PO4^3--P的去除率达到了89．14％。

Based on static beaker testing of phosphorus sludge of the long - term raise domestication denitrification with NO2^- - N as the electron acceptor, influences of MESS and temperature on denitrifying dephosphatation system were studied. The results show that higher or lower MLSS concentration can influence the PO4^3- - P removal effect. When the MLSS concentration is about 4 000 mg/L, phosphorus removal rate is the highest. When the operation temperature is about 20 ℃,the removal rate of PO3^4- - P can reach 89.14%.