Green chemistry in water treatment: Use of coagulant derived from acacia mearnsii tannin extracts

Abstract

News coagulants for water and sewage treatment are synthesized trough the chemical transformation of tannin extracts. Tanfloc® is a cationic polymeric coagulant produced from tannin extract of Acacia mearnsii. In this paper we are supporting the use of cationic polymeric coagulant for treatment of polluted water instead of aluminum or iron salts to support the sustainable water supply systems according with the principles of the green chemistry.