亚硝化型悬浮填料硝化效果的优化筛选

Optimal screening on short-cut nitrification effect of suspended carriers

在亚硝化系统中,以模拟生活污水为处理对象,对四种不同类型悬浮填料的挂膜方式和挂膜性能进行了优化筛选,试验表明,与自然挂膜方式相比较,人工强化法以挂膜时间短,生物膜稳定性强等优势成为载体优化筛选的运行方式;四种填料中,ZH新型高效生物硝化菌填料的亚硝化效果最佳;通过对最优载体典型周期进行在线监测得出短程硝化过程中DO和pH值的变化可以用来表征COD的降解和氨氮的转化的进程.

In a short-cut nitrification system, by using domestic sewage, optimal screening was carried out on the biofilm forming methods and properties of four suspended carriers. The results showed that compared with the natural way, the artificial method in biofilm forming enhanced biological membrane stability and shorted the forming time as the optimal operation mode; ZH new efficient nitrifying bacteria carrier had the best effect among these four; and the on-line monitoring of typical optimal carrier reflected that DO and pH value could react the relationship with COD degradation and ammonia transformation in the short-cut nitrifica- tion process.