Coagulants Use and dosage :

Coagulants are used after dilution. The rate of dilution will depend directly on the parameters of the solution to be treated (concentration, viscosity, …) and on the application equipment(pump, flow, …).

Direct injection of the coagulant can be considered, although a previous dilution between 0.5 and 10% is recommended.

The dosage of the coagulant will be a function of the number of charges to be neutralized in the medium, therefore on the concentration in colloidal particles in the water to be treated.

Other parameters also influence the dosage such as:

● Agitation : good dispersion of the coagulant in the solution to be treated is necessary for all the charges surrounding the colloidal particles to be neutralized (Flash mixing with a speed gradient of 1 000 s-1 is recommended).

● Dilution of the coagulant : the more the coagulant is diluted, the better the dispersion in the water to be treated and therefore the better neutralization of the charges.

Keywords:

water treatment, wastewater treatment, water treatment chemical,Water purifier, water purifying

PAC, polyaluminum chloride, polyDADMAC, cationic polymer coagulant, cationic polymer flocculant, coagulant, flocculant, Polyelectrolyte, polyquaterinum

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