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常温短程内源反硝化生物脱氮

Keywords: 生物脱氮,内源反硝化,亚硝酸盐

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Abstract:

为了确定短程内源反硝化的特性及其影响因素,采用SBR反应器,在20℃下,对以NO3-和NO2-为电子受体的内源反硝化脱氮状况进行了对比,并对不同污泥浓度下的短程内源反硝化速率进行了研究.结果表明,短程内源反硝化速率约为全程内源反硝化速率的1.6倍;污泥浓度从4g/L变化到12g/L时,短程内源反硝化速率平均值从0.026/d增加到0.038/d;短程内源反硝化间歇运行9个周期后,活性污泥的ρ(VSS)降低约16%,反硝化速率则降低了49%.

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