净水污泥中铝盐混凝剂回收率影响因素研究  

A Research on Factors of Recovery Rate of Aluminum Coagulant from Water Supply Plant Sludge

作　　者：尹启超[1] 王东田[1,2] 田美玲[1] 

机构地区：[1]苏州科技学院江苏省环境科学与工程重点实验室,江苏苏州215011 [2]苏州科技学院化学与生物学院,江苏苏州215009

出　　处：《苏州科技学院学报（工程技术版）》2010年第4期1-4,共4页Journal of Suzhou University of Science and Technology （Engineering and Technology）

基　　金：国家自然科学基金资助项目(50878136);重点实验室开放课题项目(ZD071204);"六大人才高峰"项目(07-A-021);研究生科研创新计划项目(CX09S-048Z)

摘　　要：利用超声波法对净水污泥中铝盐进行回收,讨论了试验影响因素对超声波法回收污泥中铝盐的影响。与传统酸化法相比,利用超声波法回收污泥中铝盐可以减少酸用量,提高铝回收率,有效利用资源。研究结果表明:超声波与酸对污泥中铝盐混凝剂的回收具有协同作用。当超声波-盐酸协同时,最佳作用时间为40 min,铝回收率为44.34%。硫酸和超声波协同作用的最佳作用时间为50 min,铝回收率为50.77%。超声波-酸协同反应的最佳超声功率为1 000 W。The ultrasound synergic method was used to recover the aluminum from the water supply plant sludge,and the experimental influences on the ultrasound recovery were discussed in this paper.Compared with the traditional acidic way,the ultrasound synergic method could reduce the dosage of acid utilization and improve the aluminum coagulant recovery rate.The results show that the ultrasound and acid presented a synergy function in the recovery of the aluminum coagulant in the sludge.The best reaction time was 40 min and the recovery rate was 44.34% while the ultrasound cooperated with the hydrochloric acid.The best reaction time for the sulfuric acid cooperation with the ultrasound was 50 min,the recovery rate was 50.77%.The optimal ultrasonic power was 1 000 W in this ultrasound-acid synergic reaction.

关 键 词：净水污泥 铝盐混凝剂 回收率 

分 类 号：X703.1[环境科学与工程—环境工程]