Polyacrylamide and polymeric aluminium chloride can be used at the same time?

Usually in the sewage treatment time, some waste water, the use of a single flocculant effect is not up, must pass both types in combination, the use of polyacrylamide and aluminum chloride treatment of sewage will achieve better results. But pay attention when adding pharmacy order, the order is not correct, but also fail to effect.

Polyacrylamide flocculant mixing and other sequential method added:

When using the composite flocculant must pay attention to their sequence and dosing intervals! Polymeric aluminium chloride and PAM is to make joint use of PAC in the first complete and the charge / colloid destabilization after the formation of small flocs, and further increase the floc size is conducive to fully precipitate. Since PAC PAC reaction time is very short, so need a strong mixing after adding, PAM longer duration of action, mixed note after the first strong weak - strong first is to mix evenly in order to avoid damage to the weak floc! Polyacrylamide flocculant belong, PAC belong coagulant, under normal circumstances is to add coagulant coupled with PAM, but to be safe, it is recommended that you add through experiments to determine the effect of the order! Dosing point, dosage, dosing time and the need to experiment to determine mixing intensity, remember do not put them to use both agents together, otherwise it will affect the results, increasing the cost.

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