摘要
活性污泥法处理废水时产生大量的剩余污泥会造成二次污染,需要对其进行成本适宜的处置。本文利用课题组前期筛选的厌氧菌群,对影响菌群破解剩余污泥过程的影响因素进行研究,为后续的优化提供理论指导。结果表明:温度为35℃时效果最好;升高转速有助于污泥破解;调节p H值至酸性或碱性可以有效提高破解速率,p H值为10时效果最好;加入一定量超声破碎后的污泥可以提高破解效率,表明给厌氧菌群以初始的营养物质有较好的效果(单纯污泥不具有较易利用的营养物质);蛋白酶和脂肪酶可以提高破解效率,但脂肪酶更有效。上述研究结果可为优化厌氧微生物破解剩余污泥过程的优化提供理论指导,更进一步推进其工业应用。
Large amount of sewage sludge are produced from activated sludge processes, which caused serious secondary pollution. It needs to be treated by a stable, safe, low-cost method. In this paper, the influencing factors of disintegrating excess sludge process was measured by using a group of anaerobic flora to destroy excess sludge. The results showed that the optimum temperature was at 35 ℃. And increased speed could help sludge crack. Adjusting p H to acidic or alkaline could effectively improve the rate of crack, and p H at 10 was best. And adding a certain amount of sludge after crushing ultrasound could improve the efficiency of disintegration. It indicated that adding initial nutrients could improve the disintegrating effect（raw sludge does not have the nutrients to use）. Protease and lipase improved disintegrating efficiency, and lipase was more effective. This study provided a guidance to achieve its industrial application further.
出处
《石河子大学学报（自然科学版）》
CAS
2015年第1期38-44,共7页
Journal of Shihezi University(Natural Science)
基金
石河子大学高层次人才项目(RCZX201205)
关键词
厌氧菌群
剩余污泥
破解
影响因素
anaerobic flora
excess sludge
disintegration
influence factors
作者简介
程宵宵（1989-），女，硕士研究生，专业方向为固体废弃物资源化处理。
通信作者：曹鹏（1978-），副教授，研究方向为水污染控制工程，e—mail：caop@shzu．edu．cn。
