BOD_5污泥负荷对多段多级AO工艺处理效果的影响

The Influence of BOD_5 Sludge Loadings for AMAO Process

研究了不同BOD_5污泥负荷下多段多级AO工艺对污染物的处理效果。结果表明,BOD_5污泥负荷对多段多级AO工艺去除COD的影响很小,BOD_5污泥负荷在0.02~0.15 d^(-1)时,对COD都有很好的处理效果;BOD_5污泥负荷在0.02~0.15 d^(-1)时,BOD_5污泥负荷越高,多段多级AO工艺的除磷效果越好;BOD_5污泥负荷为0.05~0.10 d^(-1)时,对TN的处理效果较好。在实际工程应用中,BOD_5污泥负荷一般都小于0.1 d^(-1)。

This work had investigated the treatment efficiency of the multi-segment/multi-step AO process to pollutants under different BOD_5 loadings.The results indicated that, the COD achieved good treatment efficiency when BOD_5 sludge loading was in range from 0.02^0.15 d^（-1）, and BOD_5 loadings in this range showed little influence on removal rate of multi-segment/multi-step AO process to COD. Better dephosphorization efficiency had been achieved at higher BOD_5 sludge loadings when BOD_5 ranged from 0.02～0.15 d^（-1）. At meanwhile, better TN treatment efficiency had been obtained at a BOD_5 sludge loadings of 0.05～0.1 d^（-1）. In engineering applications, the BOD5 sludge loadings is generally less than 0.10 d^（-1）.