METHOD FOR MANUFACTURING POROUS CERAMIC WATER PURIFICATION FILTER USING SILVER CLUSTER IMPREGNATED ZEOLITE AND OYSTER SHELL

摘要

PURPOSE: A method for manufacturing a porous ceramic water purification filter using silver cluster impregnated zeolite and oyster shell is provided to develop a ceramic water purification filter for filtering heavy metals and harmful organic compound and sterilizing bacteria as preserving natural water as it is. CONSTITUTION: The method for manufacturing a porous ceramic water purification filter using silver cluster impregnated zeolite and oyster shell comprises the processes of dehydrating the ion exchanged zeolite at 500 deg.C under the oxygen current after ion exchanging silver (Ag) onto zeolite; forming the mixture in a cylindrical shape by mixing diatomaceous earth and clay or bentonite with the oyster shell powder in a certain ratio after calcining oyster shell at 1000 deg.C and milling the calcined oyster shell into powder; and manufacturing a ceramic water purification filter having a high ceramic porosity after heat treating the resulting material at a relatively low temperature of 700 to 900 deg.C, wherein the ceramic water purification filter comprises the processes of mixing 40 to 60 wt.% of diatomaceous earth having particle size of 100 m or less, 10 to 30 wt.% of stabilized silver cluster that is prepared by dehydrating zeolite onto which silver (Ag) having excellent ion exchange capability is ion exchanged under the oxygen current, 3 to 5 wt.% of oyster shell powder, and 10 to 40 wt.% of viscous yellow soil or bentonite; and calcining the mixture at a temperature of 700 to 900 deg.C.