摘要
为了筛选出一种既能提高常规活性污泥系统的除污效能,又能加强其抗冲击负荷能力的方法,考察了投加沸石粉的活性污泥系统对石化废水COD和氨氮的强化去除效果,研究了污泥絮体的性状和结构以及微生物DNA的多样性,探讨了沸石强化活性污泥系统对污染物去除的机理。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;冲击后采取投加沸石粉的补救措施表明,它对于冲击造成的损伤有较好的修复效果。
In order to select a method by which the pollutants removal efficiency of conventional activated sludge system can be improved and its shock resistance capacity can be upgraded,investigation was conducted on the effect of zeolite enhanced activated sludge system on removal of COD and ammonia nitrogen from petrochemical wastewater;and study was made on character and structure of sludge floc and diversity of microbial DNA,as well as its mechanism of pollutants removal.Also,simulation was carried out to the shock loading of influent with high ammonia content on the zeolite enhanced activated sludge system.Test results show that the zeolite enhanced system has much stronger resistance to shock loading than that of the control system.The remediation measures taken by addition of zeolite indicate that the zeolite enhanced activated sludge system has good effect on repairing the damage rising from shock loading.
出处
《中国给水排水》
CAS
CSCD
北大核心
2004年第7期16-20,共5页
China Water & Wastewater
基金
上海市环保局资助项目(02JG05030)
上海市生态学重点学科资助项目
关键词
沸石
活性污泥
石化废水
强化处理
zeolite
activated sludge
petrochemical wastewater
enhanced treatment
