深床过滤中的生物反硝化脱氮实验研究

Experimental study on removal nitrogen of bio-denitrification in the process of the deep bed filtration

研究了深床过滤过程的反硝化动力学,分析了填料床层脱氮时的影响因素 实验结果表明,深床过滤过程中的反硝化动力学级数在1/2~1级之间变动 在C/N=2.0~2.3,HRT=1及磷含量不低于0.05 mg/L时,脱氮效率超过90%以上。

Bio-denitrification kinetics was studied in the processes of the deep bed filtration in this paper. The influencing factors on removal nitrogen were analyzed. The result of the experiment shows that the orders of bio-denitrification kinetics was about 1/2-1. When C/N, HRT was about 2.0-2.3, lh respectively and the concentration of phosphorus was above 0.05mg/L, the efficiency of removal nitrogen was above 90%.