IMMOBILIZED TITANIUM DIOXIDE PHOTOCATALYST FOR REMOVAL OF RECALCITRANT COMPOUNDS IN WASTEWATER, FABRICATION METHOD THEREOF AND WATER TREATMENT APPARATUS USING THE SAME

摘要

PURPOSE: An immobilized titanium dioxide photocatalyst for the removal of recalcitrant compounds in wastewater, a fabrication method thereof and a water treatment apparatus using the same are provided. CONSTITUTION: The fabrication method of an immobilized titanium dioxide photocatalyst comprises the steps of injecting an anionic dispersant in aqueous titanium dioxide suspension for homogenization, wherein the anionic dispersant is selected from sodium polyacrylate and nonionic polyacrylate; injecting silicon or alumina binders in the aqueous titanium dioxide suspension, wherein the weight ratio of titanium dioxide and binder is 1:0.1 to 1:1; dipping hollow inorganic carrier or porous inorganic carrier with specific gravity of 0.5 to 1.5 g/cm¬3 in the aqueous titanium dioxide suspension for the immobilization of titanium dioxide particles onto the inorganic carrier. The water treatment apparatus(10) using the immobilized titanium dioxide photocatalyst comprises an ultraviolet lamp(11); a pair of inorganic binder recover devices(12) which is installed at upper side inside the water treatment apparatus; and a pair of diffusers(13) which is installed at bottom inside the water treatment apparatus.