Main advantages of poly aluminium chloride coagulants

• The poly aluminium coagulants in general consume considerably less alkalinity than alum. They are effective over a broader pH range compared to alum and experience shows that PAC works satisfactorily over a pH range of 5.0 to 8.0;
• PAC work extremely well at low raw water temperatures. Flocs formed from alum at low temperatures settle very slowly, whereas flocs formed from poly aluminium coagulants tend to settle equally well at low and at normal water temperatures;
• Less sludge is produced compared to alum at an equivalent dose;
• Lower doses are required to give equivalent results to alum. For example, a dose of 12 mg/L PACl was required for treatment of a coloured, low turbidity water compared to similar performance obtained when using an alum dose of 55 mg/L, and the increase in chloride in the treated water is much lower than the sulphate increase from alum, resulting in lower overall increases in the TDS of the treated water;
• Poly aluminium chloride solution is stable for 5 to 6 months when stored at less than 50°C and is so ideal for bulk storage and dosing installations.

• HCVP-SW ( For Drinking Water )
• HCVP-SY