Method of preparation of mixed coagulants for clarifying water, the mixed coagulants obtained by this process, and method for clarifying water with said mixed coagulants

摘要

Method for the preparation of coagulants for clarifying water, in which, to a solution of an inorganic water clarifying coagulant, maintained at a temperature between 25 degrees Celsius and 80 degrees Celsius, one adds at least one cationic polymer soluble in water, obtained from vinylic monomer(s), in a quantity between 0.1 percent and 10 percent of the total weight of the final product, agitating the solution for at least 15 minutes and at a temperature higher than ambient temperature, followed by cooling and filtering.