Journal article

Ion exchange for the removal of natural organic matter

B Bolto, D Dixon, R Eldridge

REACTIVE & FUNCTIONAL POLYMERS | ELSEVIER | Published : 2004

Abstract

Because of their aliphatic and carboxylic acid structures, the polar components of natural organic matter (NOM), both charged and neutral, can give high yields of disinfection by-products (DBPs). For removal of charged organic species, ion exchange is better performing than coagulation with inorganic salts such as alum, as it very efficiently removes essentially all of the charged material, while alum preferentially removes only the larger molecules in these fractions. The influence of resin structure on performance is reviewed. There is an increase in NOM removal for quaternary ammonium resins of higher water content, with the more open structures allowing easier entry of the larger NOM spe..

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University of Melbourne Researchers