超声强化混凝技术在给水处理中的研究  

The Study of Ultrasound Enhanced Coagulation in Water Supply

作　　者：吕淑清[1] 杜鹃山[2] 高飞[3] 

机构地区：[1]东北电力大学建筑工程学院,吉林吉林132012 [2]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150001 [3]山东青岛理工大学环境与市政工程学院,山东青岛266520

出　　处：《东北电力大学学报》2011年第5期137-141,共5页Journal of Northeast Electric Power University

摘　　要：随着经济和社会的发展,水资源的微污染问题日益严重,目前的水处理工艺必须考虑到微污染的问题。实验首先寻找传统混凝工艺的条件为pH=6.5～7.5,温度T=17℃～18℃,最佳投加量6.384 mg/L(以Al元素含量计算);然后在最佳的混凝条件下分别加入超声波的作用发现最佳的超声持续时间为30 s;但是我们发现超声对硅的去除并不明显;超声作用混凝30 s时,去除有机物的效率比传统混凝方法要高16.73%(以重铬酸钾指数为计)。得出结论:超声强化混凝对原水的浊度去除和有机物的去除都达到了很好的效果,而且比传统的混凝方法要好,但是在水中硅的去除方面和传统混凝相比并无优势。With development of the economy and society, micro-contamination of water resources is a growing problem, the present water treatment plant must take into account micro-pollution. In this study, first of all loo- king for the traditional coagulation process conditions pH = 6.5 - 7.5, temperature T = 17 - 18 ℃, the best dosage of 6.384 mg/L（ calculated with A1 content） ;then the best coagulation conditions were added the role of ultrasound to find the best duration of ultrasound 30 s; but we found ultrasonic removal of the silicon is not obvious;ultrasonic coagulation 30 s, the removal efficiency of organic matter than conventional coagulation method 16.73% higher （ in potassium dichromate）. Concluded ： Ultrasound enhanced coagulation of the raw water turbidity removal and the removal of organic matter has reached good results, and better than traditional methods of coagulation, but the removal of silicon in the water area and the traditional coagulation phase no ad- vantage compared

关 键 词：电厂水处理 微污染水 超声波 强化混凝 

分 类 号：TB495[一般工业技术]