不同强化混凝技术超滤工艺处理滦河水对比试验研究  

COMPARISON TEST OF ENHANCED COAGULATION-ULTRAFILTRATION PROCESS FOR TREATMENT OF LUAN RIVER WATER

作　　者：李诚[1,2] 黄廷林[1] 李志伟[3] 冯颜颜[1] 

机构地区：[1]西安建筑科技大学,陕西西安710055 [2]天津市创业环保集团股份有限公司,天津300000 [3]天津振津工程集团有限公司,天津300000

出　　处：《水处理技术》2012年第12期127-129,136,共4页Technology of Water Treatment

基　　金：天津市科技支撑计划项目(11ZCKFSF01700)

摘　　要：通过小试与中试相结合,考察了用小试混凝沉淀技术代替中试混凝超滤工艺判断混凝剂最佳投药量的可行性,对比研究了经聚合氯化铝(PAC)、FeCl3、硫酸铝(AS)3种混凝剂预处理超滤后在除浊、除有机物、膜污染控制等方面的效能。结果表明,浊度的去除效果与混凝剂的种类和投加量无关,有机物的去除效果由高到低为PAC(45.5%)>FeCl3(42.4%)>AS(35.5%),膜污染程度(ΔTMP)由高到低为AS(42.72kPa)>FeCl3(39.68 kPa)>PAC(21.01kPa),综合比较采用PAC混凝预处理效果最佳,对水厂实际运行具有一定指导意义。Through the combination of small experiment and pilot test,studied the feasibility of determining the optimal dosage of coagulant by coagulation sedimentation technology in the laboratory instead of pilot coagulation ultrafiltration process. Comparative studies on the performance of PAC, FeCl3, AS pretreatment after ultrafiltration in turbidity, organic matter removal and membrane pollution control. The results showed that the effect of Turbidity removal was unrelated with the agent types and dosage. The removal effect of organics from high to low were PAC （45.5%） 〉FeC13 （42.4%） 〉AS （35.5%）. Membrane fouling degree（ATMP） from high to low were AS （42.72 kPa） 〉FeCI3 （39.68 kPa） 〉PAC （21.01kPa）. Through Comprehensive comparison, the effect of using PAC coagulation pretreatment was the best, which had a certain guiding significance for the actual operation of water treatment works.

关 键 词：混凝 超滤 膜污染 跨膜压差 

分 类 号：TQ028.8[化学工程] TU991.22[建筑科学—市政工程]