碳源对反硝化除磷的影响

Effect of the carbon source on denitrifying phosphorus removal

文章研究碳源对反硝化除磷的影响。试验结果表明：反硝化除磷菌最大放磷量与碳源有关，当阳m〉800mg／L时，最大放磷量达到50mg／L，而ρCOD〈200mg／L时，反硝化除磷菌的最大放磷量还不到5mg／L；反硝化除磷菌最大放磷量所需时间也与碳源有关，随着COD质量浓度的降低，放磷所需时间也在减少，当COD的质量浓度从440-110mg／L时，所需时问则从120-10min。

The effect of the carbon source on denitrifying phosphorus removal is discussed in the paper. Experiments demonstrate that the largest amount of P-release were related with the carbon source. when ρCOD〉800 mg/L, the P-release amount reached to 50 mg/L; while ρCOD〈200 mg/L, the P-release amount was less than 5 mg/L. Experiments also indicate that the time for the largest amount of P-release also had relation with the carbon source. When ρCOD reduced, the time of P-release also declined; when ρCOD decreased from 440 mg/L to 110 mg/L, the time decreased from 120 min to 10 min.