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AssigneeCanon Kabushiki Kaisha
InventorsKinya Kato, Etsuko Sugawa
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An apparatus for decomposing a target substance, which is a halogenated aliphatic hydrocarbon compound or a halogenated aromatic compound. This apparatus has a water tank for holding water containing chlorine and for contacting the target substance with the chlorine, a means for feeding the target substance to the water, a light source for irradiating the water containing the supplied target substance with light at a wavelength of 300 nm to 500 nm, and a means for reducing a chlorine concentration of a wastewater discharged from the water tank by contacting the wastewater with air.
An apparatus for decomposing a target substance, which is a halogenated aliphatic hydrocarbon compound or a halogenated aromatic compound, comprising:
Dependencies are inferred from the claim text.
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By subjecting to electric or wave energy or particle or ionizing radiation: to electromagnetic radiation, e.g. emitted by a laser
Electrochemical processes, e.g. electrodialysis: electrolytic degradation or conversion
To electromagnetic radiation, e.g. emitted by a laser: ultraviolet radiations, i.e. radiation having a wavelength of about 3nm to 400nm
Devices therefor; Their operating or servicing: for producing "ionised" acidic or basic water
Term end not estimated
1. Field of the Invention
The present invention relates to a method for decomposing halogenated aliphatic hydrocarbon compounds or aromatic compounds, a method for cleaning a medium contaminated with at least one of these compounds, and an apparatus to be used for the same.
2. Related Background Art
FIG. 1 is a schematic diagram of an embodiment of the apparatus of the present invention for decomposing halogenated aliphatic hydrocarbon compounds;
FIG. 2 is a schematic diagram of another embodiment of the apparatus of the present-invention for decomposing halogenated aliphatic hydrocarbon compounds;
FIG. 3 is a schematic diagram of still another embodiment of the apparatus of the present invention for decomposing gaseous halogenated aliphatic hydrocarbon compounds;
One method of the present invention for decomposing halogenated aliphatic hydrocarbon compounds or aromatic compounds or both (hereinafter referred to as the target substance) comprises the steps of:
(i) contacting the target substance with functional water produced by electrolysis of water containing an electrolyte under irradiation with light; and
(ii) neutralizing the wastewater from the step (i) (a resulting solution after treatment of the step (i)).