In this study, a Ciliation (500㎥/day) was used at the N sewage treatment center in Seoul to reuse the treated sewage water. when the sewage treatment conditions are deteriorated, SS and COD<SUB>Cr</SUB> were test using the water bed test method process and the pollution due to the use of the Ciliumfilter was analyzed through SEM. By using the Disk type ciliumfilter, removal efficiency for SS was 49~92% which enaled the process to maintain the effluent water to be less than 3㎎/L. Removal efficiency of TCODcr was 13~56% due to the solubility organic and that of particle was 90% and 78% for particle size less than 20㎚ and 10~48㎚, respectively.