and study was made on character and structure of sludge floc and diversity of microbial DNA,as well as its mechanism of pollutants removal.

• 模拟高氨氮浓度的进水对沸石强化活性污泥系统进行冲击的试验表明,沸石强化系统对氨氮的冲击比对照组有较强的耐受性;