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:
Aug. 17, 2004
Filed:
Sep. 20, 2001
Applicant:
Inventors:
Kazuyuki Yamasaki, Hiroshima, JP;
Kazumi Chujo, Ayauta-gun, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 3/28 ;
U.S. Cl.
CPC ...
C02F 3/28 ;
Abstract
In this waste-water treatment system, solids suspended in waste water are attached to a radial ring-shaped thread structure filled in an attachment filter tank . Then, particle sizes are increased and the attached solids are further made to be anaerobic, digested and reduced. Then, sludge generated from the suspended solids is sedimented, separated and removed in a sedimentation section in the same attachment filter tank . In this waste-water treatment system, solids suspended in waste water can be filtered without consuming a large amount of electrical energy. Thus, energy can be saved and waste can be reduced.