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.:
Date of Patent:
Jul. 05, 2011
Filed:
Jul. 02, 2008
Masahiko Tsutsumi, Fuchu, JP;
Takumi Obara, Fuchu, JP;
Nobuyuki Ashikaga, Kawasaki, JP;
Katsuya Yamamoto, Yokohama, JP;
Hiroshi Tamura, Tokyo, JP;
Masahiko Tsutsumi, Fuchu, JP;
Takumi Obara, Fuchu, JP;
Nobuyuki Ashikaga, Kawasaki, JP;
Katsuya Yamamoto, Yokohama, JP;
Hiroshi Tamura, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An aeration-less water treatment apparatus including an anaerobic reactor which receives sewage to cause the sewage to flow as an upward stream, and an aerobic reactor which receives treated water from the anaerobic reactor to cause the water to flow as a downward stream so that the water contacts aerobic microorganisms and air to aerobically treat the polluted matter in the water, the apparatus further including a suspended sludge section located in a lower part of the anaerobic reactor and in which the anaerobic microorganisms are suspended in the sewage, and a carrier section located in an upper part of the anaerobic reactor and having carriers to which the anaerobic microorganisms are attached, the anaerobic microorganisms having flowed from the suspended sludge section being further attached to the carriers.