聚合氯化铝铁的混凝性能

The coagulating characteristics of polymeric aluminum ferric chloride(PAFC)

通过聚合氯化铝铁 (PAFC)对不同 p H值原水的混凝实验结果的比较 ,得出原水 p H值不同时 ,发挥最佳混凝效果的 PAFC的 Al/ Fe摩尔比也不同。实验室制聚合氯化铝 (PA C)、聚合氯化铁 (PFC)、PAFC混凝实验结果表明 :p H 6 .5时 ,PAFC(Al/ Fe=5 / 5 ,B=1.5 )的混凝效果最好 ,p H>6 .5时 ,则 PA FC(Al/ Fe=9/ 1,B=2 .0 )的混凝效果最好。

The jar test results of PAFC,PAC and PFC for turbidity water of different pH values show that the Al/Fe molar ratio of the PAFC would be a key factor to the optimum coagulation.When pH6.5,PAFC(Al/Fe=5/5,B=1.5)gave the best efficiency of turbidity removal,while pH>6.5,The best coagulation results were obtained by using PAFC(Al/Fe=9/1,B=2.0).