METHOD FOR THE REMOVAL OF SUBMICRON PARTICULATES FROM CHLORINATED WATER BY SEQUENTIALLY ADDING A CATIONIC POLYMER FOLLOWED BY ADDING AN ANIONIC POLYMER

摘要

A method for removing submicron colloidal particulates, such as hydrocarbons, from water. The method includes first adding a soluble, cationic polymer, such as chitosan, a salt, or solution of chitosan to water containing the submicron particulates and a halogenating agent, followed by adding a soluble, anionic polymer or anionic salt to the water. The resulting flocs are filtered to remove the submicron particulates.

主权项

1. A method for removing submicron particulates from water containing a halogenating agent, comprising:
(a) adding chitosan to water comprising submicron particulates and a halogenating agent to provide chitosan-treated water; (b) adding a soluble, anionic polymer to the chitosan-treated water to provide polymer-treated water; (c) allowing flocs comprising submicron particulates to form in the polymer-treated water; and (d) filtering the flocs to remove the submicron particulates from the water.