Method and apparatus for processing substances to be decomposed
AssigneeCanon Kabushiki Kaisha
InventorsKinya Kato, Masahiro Kawaguchi, Akira Kuriyama
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Abstract
A method for processing substances to be degraded is provided. The method includes a decomposing step in which a mixed gas containing chlorine and the substances to be degraded is irradiated with light to decompose the substances to be degraded, a contact step in which gas generated through the decomposing step is contacted with an alkaline solution to trap chlorine contained in the gas generated through the decomposing step in the alkaline solution, and a reusing step in which the alkaline solution containing the chlorine as a source of generating the chlorine is used again in the decomposing step.
Claims8
A method of treating substances to be degraded, comprising the steps of:
- irradiating a mixed gas containing chlorine and the substances to be degraded with light for decomposing the substance to be degraded;
- contacting a gas containing chlorine obtained after the step of decomposing the substances to be degraded with an alkaline solution;
- desorbing chlorine trapped in the alkaline solution in the step of contacting;
- and
- using the chlorine desorbed in the step of desorbing again in the step of decomposing.
Dependencies are inferred from the claim text.