Experimental analysis of floc formation time and order in coagulation process

摘要：

The floc formation time and order were identified with the laser method while three kinds of coagulants such as polyaluminum chloride,ferric chloride,and aluminum sulfate were tested for comparison of their coagulation process.Floc formation time of three coagulants tended to decrease with the increase of coagulant dose and turbidity.When the pH was 7,floe formation time of PAC、 Al2(SO4)3 were smaller than that of other pH conditions.The minimum formation time of FeCl3 occurred when the pH was 6.The minimum dose for floe formation was 0.68,0.88,and 1.04 mg/L for PAC,FeCl3,and Al2(SO4)3,respectively.It was also found that the floc formation order of PAC was the largest among three coagulants.

关键词： floc formation time order coagulation

作者: Jianhai Zhao Yianping Lai

作者单位: Department of Environmental and Municipal Engineering,Tianjin Insititute of Urban Construction,Tianj Department of Energy and Mechanical Engineering,Tianjin Insititute of Urban Construction,Tianjin,300

会议类型: 国际会议

会议名称: 2010 International Conference of Environment Materials and Environment Management(2010年环境材料与环境管理国际学术会议 EMEM 2010)

会议地点: 哈尔滨

会议语种:英文

页码: 1058-1062

在线出版日期: 2010-07-24（万方平台首次上网日期，不代表论文的发表时间）