Effect of functional groups of humic substances on uf performance

摘要

The role of different functional groups present in humic substances on the membrane flux is unclear. This study is undertaken to (1) separate the carboxyl and phenolic groups from a humic solution, and (2) evaluate the effect of each fractionated humic substances on the ultrafiltration (UF) performance. A weak-base amine resin was used for the adsorption 9pH 7) and the subsequent desorption (pH 13) of the Phenolic groups from a commercial humic solution.