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Experimental analysis of floc formation time and order in coagulation process

机译:混凝过程中絮凝物形成时间和顺序的实验分析

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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.
机译:用激光法确定了絮凝物的形成时间和顺序,同时比较了聚氯化铝,氯化铁,硫酸铝三种混凝剂的凝结过程。三种凝结剂的凝结时间随着增加的增加而趋于减少。 pH为7时,PAC,Al2(SO4)3的絮凝时间要短于其他pH条件; pH为6时,FeCl3的絮凝最短时间是最短的。 PAC,FeCl3和Al2(SO4)3的浓度分别为0.68、0.88和1.04 mg / L。还发现,在三种混凝剂中,PAC的絮凝形成顺序最大。

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