COMPOSITIONS AND METHODS FOR WATER CLARIFICATION AND WASTEWATER TREATMENT

摘要

47 Tannin containing polymers, their method of production and methods of using as water treatment agents are disclosed. The tannin containing polymers comprise a water soluble or dispersible tannin containing polymer having the formula: Tannin - ¢N-C-A! wherein N is a nonionic monomer, C is a cationic monomer and A is an anionic monomer, and the mole percentage of N is from 0 to 60%, the mole percentage of C is from 30 to 100% and the mole percentage of A is from 0 to 30% provided the total mole percentage in the polymer is 100%.