POLISHING DEVICE AND METHOD FOR SUPPORT SURFACE FOR FORMING ZEOLITE FILM

摘要

PROBLEM TO BE SOLVED: To provide a polishing device for a support surface for forming a zeolite film capable of promoting the formation of the homogeneous zeolite film by reducing uneven roughness of the support surface. SOLUTION: This device polishes the surface of the porous support used for a film module for separating mixture formed by depositing the zeolite film on the pipe-shaped porous support surface. This device is provided with a support roller 2 rotatably supporting the pipe-shaped porous support 1, a polishing material 3 being in a slide-contact with the outer circumferential surface of the pipe-shaped porous support 1 rotating on the support roller, means 4 pushing the polishing material 3 toward the pipe-shaped porous support 1 and making it to slide in the longitudinal direction of the porous support, and cleaning means 5 cleaning the surface of the porous support 1 in the front and/or the rear in the sliding direction of the polishing material.