WATER CLARIFICATION

摘要

A method for clarifying water in which the water is contacted with a coagulant/adsorbent which comprises a finely divided particulate mineral, the individual particles of which have a particle size of 10 microns or less and have a thin hydroxylated surface layer having a positive zeta potential at the adsorption pH, characterized in that an organic polyelectrolyte is added to the water after contact and before separation of the coagulant/adsorbent from the water.