Method for decomposing halogenated aliphatic hydrocarbon compounds or aromatic compounds, method for cleaning medium contaminated with at least one of these compounds, and apparatus for these
AssigneeCanon Kabushiki Kaisha
InventorsKINYA KATO, ETSUKO SUGAWA
Life of this patent
Estimating the term…
Abstract
A method for decomposing an organic compound by using functional water followed by neutralization of the wastewater not to affect the environment.
Claims82
A method for decomposing a halogenated aliphatic hydrocarbon compound or an aromatic compound, comprising the steps of:
- (i) contacting a halogenated aliphatic hydrocarbon compound or aromatic compound with functional water under irradiation with light, the functional water being produced by electrolysis of an aqueous electrolyte solution;
- and
- (ii) neutralizing wastewater from the step (i).
A method for decomposing a halogenated aliphatic hydrocarbon compound or aromatic compound comprising the steps of:
- (i) bringing the halogenated aliphatic hydrocarbon compound or aromatic compound into contact with functional water containing hypochlorous acid under irradiation with light;
- and
- (ii) neutralizing wastewater from the step (i).
A method for decomposing a halogenated aliphatic hydrocarbon compound or an aromatic compound comprising the steps of:
- (i) bringing a halogenated aliphatic hydrocarbon compound or aromatic compound into contact with functional water under irradiation with light, the functional water being produced by electrolysis of an aqueous electrolyte solution;
- and
- (ii) bringing wastewater from the step (i) into contact with a microorganism which can decompose a compound contained in wastewater from the step (i).
A method for decomposing a halogenated aliphatic hydrocarbon compound or aromatic compound, comprising the steps of:
- (i) bringing a halogenated aliphatic hydrocarbon compound or aromatic compound into contact with functional water under irradiation with light, the functional water being produced by electrolysis of an aqueous electrolyte solution;
- and
- (ii) bringing wastewater from the step (i) into contact with a microorganism which can decompose a compound contained in the wastewater from the step (i).
A method for purifying a medium contaminated with a halogenated aliphatic hydrocarbon compound or aromatic compound comprising the steps of:
- (i) contacting the contaminated medium with functional water under irradiation with light, the functional water being produced by electrolysis of an aqueous electrolyte solution;
- and
- (ii) neutralizing wastewater from the step (i).
A method for purifying a medium contaminated with a halogenated aliphatic hydrocarbon compound or aromatic compound comprising the steps of:
- (i) contacting the contaminated medium with functional water containing hypochloric acid under irradiation with light;
- and
- (ii) neutralizing wastewater from the step (i).
An apparatus for decomposing at least one of a halogenated aliphatic hydrocarbon compound and an aromatic compound comprising:
- (1) an electrolysis tank having an anodic and cathodic compartments partitioned with a diaphragm, a pair of electrodes provided in the compartments respectively, and a power source to apply a potential to the electrodes,
- (2) means for supplying an aqueous electrolytic solution to the electrolysis tank,
- (3) means for irradiating light at least to the anodic compartment of the electrolysis tank,
- (4) means for supplying the halogenated aliphatic hydrocarbon compound or the aromatic compound to be decomposed to the anodic compartment in the electrolysis tank, and
- (5) means for mixing wastewater discharged from the anodic compartment of the electrolysis tank with a liquid flowing out from the cathodic compartment of the electrolysis tank.
An apparatus for decomposing at least one of a halogenated aliphatic hydrocarbon compound and an aromatic compound comprising:
- (1) a decomposition treatment tank,
- (2) means for supplying functional water to the decomposition treatment tank, the functional water being produced around an anode when an aqueous electrolytic solution is electrolyzed in an electrolytic tank having two compartments partitioned by a diaphragm and provided with an anode and a cathode respectively,
- (3) means for supplying the halogenated aliphatic hydrocarbon compound or the aromatic compound to be decomposed to the decomposition treatment tank,
- (4) means for irradiating light to the decomposition treatment tank, and
- (5) means for mixing wastewater discharged from the decomposition treatment tank with alkaline water produced around the cathode by the electrolysis of the aqueous electrolytic solution.
An apparatus for decomposing at least one of a halogenated aliphatic hydrocarbon compound and an aromatic compound comprising:
- (1) a decomposition treatment tank for holding functional water containing hypochlorous acid,
- (2) means for supplying the halogenated aliphatic hydrocarbon compound or the aromatic compound to be decomposed to the decomposition treatment tank,
- (3) means for irradiating light to the decomposition treatment tank, and
- (4) means for mixing wastewater discharged from the decomposition treatment tank with an alkaline aqueous solution.
An apparatus for decomposing at least one of a halogenated aliphatic hydrocarbon compound and an aromatic compound comprising:
- (1) an electrolysis tank having an anodic and cathodic compartments partitioned with a diaphragm, a pair of electrodes each provided in each component, and a power source to apply a potential to the electrodes,
- (2) means for supplying an aqueous electrolytic solution to the electrolysis tank,
- (3) means for irradiating light at least to the anodic compartment of the electrolysis tank,
- (4) means for supplying the halogenated aliphatic hydrocarbon compound or the aromatic compound to be decomposed to the anodic compartment in the electrolysis tank, and
- (5) means for mixing wastewater discharged from the anodic compartment of the electrolysis tank with a microorganism which can degrade a halogenated acid.
An apparatus for decomposing at least one of a halogenated aliphatic hydrocarbon compound and an aromatic compound comprising:
- (1) a decomposition treatment tank,
- (2) means for supplying functional water to the decomposition treatment tank, the functional water being produced around an anode when an aqueous electrolytic solution is electrolyzed in an electrolytic tank having an anodic and cathodic compartments partitioned by a diaphragm and provided with an anode and a cathode respectively,
- (3) means for supplying the halogenated aliphatic hydrocarbon compound or the aromatic compound to be decomposed to the decomposition treatment tank,
- (4) means for irradiating light to the decomposition treatment tank, and
- (5) means for mixing wastewater discharged from the decomposition treatment tank with a microorganism which can degrade a halogenated acid.
An apparatus for decomposing at least one of a halogenated aliphatic hydrocarbon compound and an aromatic compound comprising:
- (1) a decomposition treatment tank for holding the functional water containing hypochlorous acid,
- (2) means for supplying the halogenated aliphatic hydrocarbon compound or the aromatic compound to be decomposed to the decomposition treatment tank,
- 3) means for irradiating light to the decomposition treatment tank, and
- (4) means for mixing wastewater discharged from the decomposition treatment tank with a microorganism which can degrade a halogenated acid.
Dependencies are inferred from the claim text.