Method for decomposing halogenated aliphatic hydrocarbon compounds having adsorption process and apparatus for decomposition having adsorption means
AssigneeCanon Kabushiki Kaisha
InventorsAkira Kuriyama, Kinya Kato
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Abstract
Process and apparatus for decomposing halogenated aliphatic hydrocarbon compounds in the presence of functional water under light irradiation, where the target substance for decomposition contained at a low concentration in the exhaust or discharge from the decomposition unit is adsorbed by an adsorption unit, and at regular intervals, the adsorbed target substance is released from the adsorption unit and returned to the decomposition unit. The concentration of the target substance in the waste or discharge can be easily and efficiently reduced below the environmental standard.
Claims56
A method of decomposing a target substance being a halogenated aliphatic hydrocarbon compound with functional water, comprising the steps of:
- contacting the target compound and an active component of the functional water for decomposition in a tightly sealed reaction chamber wherein the active component is generated in the functional water by light irradiation;
- removing the target compound remained intact in the reaction chamber;
- adsorbing the removed target by using an adsorbent;
- releasing the adsorbed target substance from the adsorbent;
- and
- feeding back the released target substance to the reaction chamber.
An apparatus for decomposing a halogenated aliphatic hydrocarbon compound comprising:
- a reaction chamber in a tightly sealed state;
- means to supply a target substance being a halogenated aliphatic hydrocarbon compound to the reaction chamber;
- means to supply a functional water to the reaction chamber;
- means for irradiating light to generate an active component for decomposition in the functional water;
- means for removing the target substance remained intact in the reaction chamber from the reaction chamber;
- means for adsorbing the removed target substance with an adsorbent;
- and
- means for releasing the adsorbed target material from the adsorbent;
- and
- means for feeding back the released target substance to the reaction chamber.
A method for decomposing a target substance being a halogenated aliphatic hydrocarbon compound comprising the steps of:
- decomposing the target substance by contacting the target substance and an active component for decomposing the target substance in a reaction chamber;
- stopping the decomposition step while a part of the target substance remains undecomposed in the reaction chamber;
- removing the target substance remained intact in the reaction chamber;
- concentrating the target substance;
- and
- feeding back the target substance into the reaction chamber.
An apparatus for decomposing a target substance being a halogenated aliphatic hydrocarbon compound comprising:
- a reaction chamber for decomposition of the target substance;
- a supplying conduit for supplying the target substance into the reaction chamber;
- an evacuation conduit for removing the target substance remained intact in the reaction chamber;
- an adsorption unit for concentrating the target substance delivered by the evacuation conduit, said adorption unit being in fluid communication with the reaction chamber or the supplying conduit to feed back the target substance into the reaction chamber,
- wherein the the decomposition of the target substance is stopped while a part of the target substance remains undecomposed in the reaction chamber, and the undecomposed target substance is removed from the reaction chamber through said evacuation conduit.
A method for decomposing a target substance being a halogenated aliphatic hydrocarbon compound comprising the steps of:
- decomposing the target substance by contacting the target substance and an active component for decomposing the target substance in a reaction chamber;
- stopping the decomposition step while a part of the target substance remains undecomposed in the reaction chamber;
- exhausting a gas containing the undecomposed target substance and a decomposed target substance from the reaction chamber;
- extracting the undecomposed target substance from the gas;
- and
- feeding back the extracted undecomposed target substance into the reaction chamber.
An apparatus for decomposing a target substance being a halogenated aliphatic hydrocarbon compound comprising:
- a reaction chamber for decomposition of the target substance;
- a supplying conduit for supplying the target substance into the reaction chamber;
- an exhaustion conduit for exhausting a gas containing an undecomposed target substance and a decomposed target substance from the reaction chamber;
- and
- an extractor that extracts the undecomposed target substance from the gas exhausted by the exhaustion conduit, wherein said extractor is in fluid communication with the reaction chamber to feed back the extracted undecomposed target substance into the reaction chamber;
- wherein the decomposition of the target substance is stopped while a part of the target substance remains undecomposed in the reaction chamber, and the undecomposed target substance is removed from the reaction chamber through said evacuation conduit.
A method for decomposing a target substance being a halogenated aliphatic hydrocarbon compound comprising the steps of:
- decomposing the target substance by contacting the target substance and an active component for decomposing the target substance in a reaction chamber;
- stopping the decomposition step while a part of the target substance remains undecomposed in the reaction chamber;
- exhausting a gas containing the undecomposed target substance and a decomposed target substance from the reaction chamber;
- introducing the target substance into the reaction chamber;
- and
- repeating the decomposition step through the introduction step.
Dependencies are inferred from the claim text.