TREATMENT ADDITIVES AND METHODS FOR TREATING AN AQUEOUS MEDIUM

摘要

A method for clarifying an aqueous medium containing suspended material is provided. The method includes dispersing a treatment additive in the aqueous medium containing the suspended material for coagulating and flocculating the suspended material and then separating the suspended material from the treated aqueous medium. The treatment additive includes a crosslinked diallyldialkylammonium halide polymer prepared from solution polymerization and having from about 0.001 molar percent to less than 0.1 molar percent of a crosslinking agent. A treatment additive composition and method for making a treatment additive are also provided.