Magnetic ion exchange (MIEX (R)) resin can effectively remove significant amounts of organic matter from biologically treated sewage effluent. The MIEX (R) process has mainly been used as a batch process, which requires a large area for accommodating both contact tank and settling tank in the treatment process. In this Study; a fluidized bed MIEX (R) reactor(a semi-continuous process) was used as a pre-treatment fora submerged membrane. When used as a pre-treatment fora submerged membrane, the fluidized bed MIEX (R) contactor could remove a significant amount of organic matter in the wastewater (80% removal). This pre-treatment helped to reduce membrane fouling and keep transmembrane pressure low during the membrane operation of 8 h (less than 19 kPa). The regeneration of MIEX (R) resin (number of regeneration, regeneration time, etc.) did not have any adverse effect on the organic removal by MIEX (R).