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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.

Patent No.:

US 4165281 B1

PDFFull Text
Date of Patent:
Aug. 21, 1979

Filed:

Sep. 26, 1977

Method and unit for wastewater treatment by microorganisms

Applicant:
Inventors:

Kiyoshi Kuriyama, Kyoto, JP;

Munetaka Sato, Yokohama, JP;

Tsuneo Matsuzaki, Yokohama, JP;

Masanori Honma, Yamato, JP;

Seiji Shida, Chigasaki, JP;

Assignee:

Niigata Engineering Co., Ltd., Tokyo, JP;

Attorney:

Sughrue, Rothwell, Mion, Zinn and Macpeak

Primary Examiner:

Benoit Castel

Int. Cl.
CPC ...
C02C / ;
U.S. Cl.
CPC ...
210 17 ; 210150 ;
Abstract

A method and a unit for wastewater treatment with microorganisms, in which at least one non-woven fibrous mat having a three-dimensional network structure is disposed as a supporting media in an aeration tank, microorganisms are retained on the surface of and in the interstices of the non-woven fibrous mat, and organic polluting matter in the wastewater is oxidatively decomposed by the microorganisms in the presence of oxygen.

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Kuriyama, Kiyoshi. (1979). Method and unit for wastewater treatment by microorganisms (U.S. Patent No. 4165281). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4165281

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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