电絮凝在西北地区窖水浊度去除中的参数优化研究  

Study on optimum parameter for turbidity removal in rainwater collection by electro-coagulation in northwest region

作　　者：张国珍[1] 巩师俞[1] 武福平[1] 杨仕超[1] 刘玲花[2] 

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070 [2]中国水利水电科学研究院水环境研究所,北京100038

出　　处：《水资源与水工程学报》2012年第1期38-41,共4页Journal of Water Resources and Water Engineering

基　　金：长江学者和创新团队发展计划(IRT0966)资助项目;国家支撑计划(2006BAJ08B08-03);国家水体污染控制与治理科技重大专项(2008ZX07425-005);甘肃省建设厅科技计划项目(JK2007-21)资助

摘　　要：以模拟集雨窖水为实验原水,通过改变电絮凝过程中的电流密度、通电时间、极板间距等因素值的大小,研究电絮凝在原水浊度去除中的的最优参数组合。得出影响浊度去除效果的各因素主次关系依次是:电流密度>极板间距>反应时间,当电流密度为18.89A/m2,极板间距为1 cm,反应时间为13 min时为电絮凝去除浊度的最优组合,浊度去除率为92.94%,同时对窖水中的CODMn、UV254也有一定的去除效果。The collecting rain water was used as raw water in this experiment.The current density,electrified time,polar board spacing were changed in electro-coagulation process to search the optimum parameter for removal of raw water turbidity.The sequence relation of each factor one by one which affect the removal effect is current density>polar board spacing>contact time.When the current density was 18.89 A/m2,polar board space was 1 cm,contact time was 13 mins,which is the optimum combination in electro-coagulation process of turbidity removal.Removal rate of CODMn and UV254 was improved in rainwater collection while the removal rate of turbidity was 92.94%.

关 键 词：电絮凝 集雨窖水 电流密度 浊度去除率 

分 类 号：X703.1[环境科学与工程—环境工程]