Advanced oxidation processing apparatus using the photocatalyst and ozone

摘要

PROBLEM TO BE SOLVED: To provide a treatment apparatus by which treatment time can be shortened, which can be miniaturized, and whose cost is lowered by heightening a reaction efficiency by an activated oxygen seed and an OH radical in a case accelerated oxidation treatment is carried out for object water to be treated. ;SOLUTION: A black light 5 as a light source is installed in a reaction tank 1 through a lamp protective pipe 4, an aeration tube 3 for ozone gas is installed near the bottom wall of a reaction tank 1, light rays with 310-410nm are radiated to the water 10 to be treated and a titanium dioxide powder 9 charged to the reaction tank by the black light 5, so that dissolved ozone generated by ozone dispersion is decomposed by a photocatalytic reaction caused by light absorption of the titanium dioxide powder 9 and activated oxygen seed is produced. Organic substances in the water 10 to be treated are removed by oxidation by using the activated oxygen seed. The photocatalyst is prepared by forming a titanium dioxide film on the outer surface of the lamp protective pipe 4.;COPYRIGHT: (C)1998,JPO