... off firm, gathered, flocculation, coagulation, precipitation to purify the treatment effect. 2.SpecificationsPolyaluminium chloride1.Al2O3:Min 28%-30% ... water is also good flocculation3). In order to significantly reduce the stirring, mixing, precipitation, time, and to flocculation, sedimentation ... kg packed in two-layer bag with the interor in plastic and the exterior the woven or as your request . 5 ...