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OwnerKouji Kawakami, Yujiro Kitaide +1inventors
InventorsKouji Kawakami, Yujiro Kitaide, Nobuhisa Kato
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The present invention provides a method and a device, by which it is possible to decompose and treat a large amount of organic halogen compounds, etc. which are environmental pollutants, to a low concentration range at which it is dischargeable as waste liquor to sewage in a short time, and it is also possible to decompose organic substances and nitrogen or phosphorus compounds which are hardly decomposable by oxidation. To a sample solution 20 contained in a reaction vessel 10a in which an aqueous solution containing environmental pollutants is stored, for example, ultrasonic waves 50 are irradiated from a transducer 30a disposed at the central bottom portion of the reaction vessel 10a, and at the same time, ultraviolet rays are irradiated from an ultraviolet lamp 40a disposed at the peripheral edge of the reaction vessel 10a. In this instance, the ultraviolet lamp 40a is disposed at a position such that it does not interfere with the path of travel of ultrasonic waves 50.
A method for decomposing environmental pollutants, which comprises introducing a solution to be treated containing environmental pollutants into a reaction vessel, and irradiating the solution to be treated stored in the reaction vessel with ultrasonic waves and ultraviolet rays, wherein the reaction vessel is provided with an ultrasonic waves irradiating means to irradiate ultrasonic waves and an ultraviolet rays-irradiating means at a position where it does not substantially interfere with a path of travel of ultrasonic waves to irradiate ultraviolet rays towards the solution to be treated, stored in the path of travel of the ultrasonic waves.
A method for decomposing environmental pollutants, which comprises introducing a solution to be treated containing environmental pollutants into a reaction vessel, and irradiating the solution to be treated stored in the reaction vessel with ultrasonic waves and ultraviolet rays, wherein the solution to be treated is introduced into a first reaction vessel and irradiated with ultrasonic waves, and then the solution treated with ultrasonic waves is introduced into a second reaction vessel and irradiated with ultraviolet rays.
A device for decomposing environmental pollutants, which comprises a reaction vessel for storing a solution to be treated containing environmental pollutants, an ultrasonic waves-irradiating means for irradiating the solution to be treated in the reaction vessel with ultrasonic waves, and an ultraviolet rays-irradiating means for irradiating the solution to be treated in the reaction vessel with ultraviolet rays, wherein the ultraviolet rays-irradiating means is disposed at a position where it does not substantially interfere with a path of travel of ultrasonic waves irradiated by the ultrasonic waves-irradiating means and irradiates ultraviolet rays towards the solution to be treated, stored in the path of travel of the ultrasonic waves.
A device for decomposing environmental pollutants, which comprises a reaction vessel in which a solution to be treated containing environmental pollutants, a means for irradiating ultrasonic waves to the solution to be treated in the reaction vessel, and a means for irradiating ultraviolet rays to the solution to be treated in the reaction vessel, wherein the reaction vessel comprises a first reaction vessel for storing the solution to be treated and a second reaction vessel for storing the solution to be treated flowing out of the first reaction vessel, the first reaction vessel is provided with an ultrasonic waves-irradiating means for irradiating ultrasonic waves to the solution to be treated, and the second reaction vessel is provided with an ultraviolet rays-irradiating means for irradiating ultraviolet rays to the solution treated with ultrasonic waves.
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