Apparatus for treating gas containing substance to be decomposed and method of treating its gas
AssigneeCanon Kabushiki Kaisha
InventorKinya Kato
Life of this patent
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Abstract
The apparatus of the present invention for treating a gas containing a substance to be decomposed comprises an adsorption unit equipped with an adsorbent for adsorbing the substance to be decomposed, a steam introduction unit for bringing steam into contact with the adsorbent, a condensation unit for obtaining a condensed liquid containing the substance to be decomposed from the steam containing the substance, a reaction tank, a condensed liquid supply unit for supplying the condensed liquid to the reaction tank, a hypochlorous acid supply unit for supplying a solution containing hypochlorous acid to the reaction tank, and a light irradiation unit for irradiating the reaction tank with light.
Claims4
A method for treating a liquid containing a substance to be decomposed, comprising the steps of:
- mixing the liquid containing the substance to be decomposed and a hypochlorous acid-containing solution to obtain a mixed solution;
- contacting the mixed solution with air;
- irradiating with light a gas generated by the contacting step to decompose the substance;
- and
- neutralizing the mixed solution after the irradiating step.
An apparatus for treating a liquid containing a substance to be decomposed, comprising:
- a reaction tank for decomposing the substance in the liquid;
- a liquid supply means for supplying the liquid containing the substance to be decomposed to the reaction tank;
- a hypochlorous acid supply means for supplying a solution containing hypochlorous acid to the reaction tank,
- wherein the reaction tank comprises:
- (i) a treatment region composed of a vapor phase portion and a liquid phase portion;
- (ii) a means for introducing air in a mixed solution composed of the liquid and the hypochlorous acid-containing solution in the reaction tank;
- (iii) a light irradiation means for irradiating with light a gas generated from the mixed solution by introducing the air;
- and
- (iv) a solution discharge means for discharging the solution in the liquid phase portion;
- and
- a neutralizer for neutralizing the mixed solution after the gas is irradiated by the light irradiation means.
Dependencies are inferred from the claim text.