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:
May. 13, 2003

Filed:

Mar. 28, 2001
Applicant:
Inventors:

Yoshiharu Yasuhara, Tokyo, JP;

Kazuhiro Hasegawa, Tokyo, JP;

Kazunari Tanaka, Tokyo, JP;

Yuichi Fuchu, Tokyo, JP;

Yutaka Niida, Tokyo, JP;

Hideyuki Yoshida, Tokyo, JP;

Hiromasa Kaihatsu, Tokyo, JP;

Hiroshi Toriumi, Tokyo, JP;

Hiroshi Takasu, Tokyo, JP;

Tadashi Nagawa, Tokyo, JP;

Sumio Komine, Tokyo, JP;

Assignee:

Ebara Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/50 ;
U.S. Cl.
CPC ...
C02F 1/50 ;
Abstract

A method and an apparatus for disinfecting drainage are provided. A bromine-based or iodine-based disinfectant is added to water to obtain disinfecting water, and the disinfecting water is added to predetermined drainage. The apparatus has a device for producing disinfecting water from a disinfectant and drainage, a sand basin, and a channel for introducing the disinfecting water into the sand basin, and the drainage is disinfected while the drainage is dwelling in the sand basin.


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