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初沉池改造为回流污泥反硝化池最佳进水比例研究 总被引：1，自引：0，他引：1
为强化脱氮除磷,需要对由初沉池改造的回流污泥反硝化池的进水比例进行优化.该文结合污水厂改造模拟试验,通过对比烧杯试验研究了不同进水比例下混合液的反硝化速率.结果表明:在污水厂出水总氮量达到国标一级A标准时,通过回流污泥3.2 h的内源反硝化.回流污泥反硝化池出水中NO3的质量浓度不超过1.5 mg/L,由初沉池改造的回流污泥反硝化池的最佳进水比例为0%. 相似文献
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The aim of this research is to develop a representative model which simulates the performance of a biofilter used to treat drinking water.A steady-sate model is applied.The Monod-type substrate utilization is used,and the external and the internal mass transfer are neglected in this model.The model describes the process of substrate biodegradation,bacterial attachment onto filter media,and detachment of suspended bacteria.It simulates the natural organic matter (NOM) and biomass profiles in a biofilter as a function of filter depth and filtration velocity.The key biokinetic parameters k and KS are estimated through a special experiment.The results of the model testing show that the model prediction agrees well with the experimental data 相似文献
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