Removal of organic matter from effluents by Magnetic Ion Exchange (MIEX®)

Magnetic Ion Exchange Resin (MIEX®) is effective in removing the majority of organic carbon from biologically treated wastewater. It removed 77% of dissolved organic carbon (DOC) from synthetic wastewater when operated in batch mode using a MIEX® concentration of 10 mL/L. A pseudo second-order reaction rate model namely the Ho model was used for the kinetic study and it was found that it provided a realistic description of the adsorption kinetics of DOC. A fluidised bed MIEX® contactor effectively removed organic matter from synthetic biologically treated sewage effluent with more than 60% DOC removal even after 172 bed volumes. The regenerated MIEX® resin did not display any significant reduction in its ability to remove organic matter.

Research Highlights►MIEX® is effective in removing a majority of organic compound from BTSE ►MIEX® at a concentration of 10 mL/L could remove 77% DOC in batch mode. ►The Ho model could provide a realistic description of the DOC adsorption kinetics. ►A fluidised bed MIEX® could effectively remove 60% DOC from BTSE ►The regenerated MIEX® did not show any notably reduced ability in removing DOC