生物脱氮除磷工艺好氧区硝化功能的强化试验

在活性污泥法脱氮除磷工艺系统的好氧段投放高硬度聚乙烯悬浮小球作为生物载体，可以强化系统的硝肥功能，提高处理系统的脱氮除磷效率，同时避免产生填料间污泥结团。经两套试验装置的５种工况条件下平行对照试验结果表明：好氧区全池投放聚乙烯悬浮小球，装填密度在１０％￣１５％，ＴＫＮ去除率达９８．２％，ＴＮ去除率达到８６％，ＴＰ去除率达到９１％。

Intensive Test on Nitrification of Aerobic Zone of Biological Denitrification and Phosphorus Removal Process

When the suspended balls of high hardness polyethylene, the suspended biological supporter were put into the aerobic zone of biological nitrogen and phosphorus removal process, function of nitrification could be enhanced and the efficiency of nitrogen and phosphorus removal were increased. This method could prevent the sludge to be intercepted by the filler. Under five kinds of operating mode conditions, two sets of experimental equipment, parallel contrast experimental result showed that the filling density of suspended balls in the whole aerobie zone was 10% - 15%, removal rates of TKN was 98.2%, of TN was 86% and of TP was 91%