The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 07, 2007

Filed:

Oct. 22, 2002
Applicants:

Jun Yamamoto, Hamamatsu, JP;

Akira Osawa, Hamamatsu, JP;

Yoichi Nagasaki, Hamamatsu, JP;

Kunimasa Muroi, Hamamatsu, JP;

Inventors:

Jun Yamamoto, Hamamatsu, JP;

Akira Osawa, Hamamatsu, JP;

Yoichi Nagasaki, Hamamatsu, JP;

Kunimasa Muroi, Hamamatsu, JP;

Assignee:

Yamaha Corporation, Shizuoka-Ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 57/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A waste liquid processing method comprising a solvent separation process for separating a chlorine-based organic solvent contained in a waste liquid; a first vaporization process that includes vaporization of the chlorine-based organic solvent remaining in the waste liquid after the solvent separation process; a collection process for collecting substances other than the chlorine-based organic solvent contained in the waste liquid after being vaporized in the first vaporization process; a second vaporization process for vaporizing the chlorine-based organic solvent remaining in the waste liquid after the first vaporization process and the collection process; a photo-oxidative decomposition process where photo-oxidation is used to decompose a chlorine-based organic gas generated in the first vaporization process and in the second vaporization process, and a post-treatment process for carrying out adsorption, absorption, and neutralization of a decomposition product gas generated in the photo-oxidative decomposition process.


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