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:
Nov. 16, 1993
Filed:
Mar. 05, 1992
Applicant:
Inventor:
Takeshi Iwatsuka, Saitama, JP;
Assignee:
Japan Organo Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210615 ; 210150 ; 210220 ; 210620 ; 2611221 ; 261123 ;
Abstract
An apparatus for biological treatment of water and waste of the attached-growth type, constructed by disposing long fiber bundles formed by binding a large number of monofilaments, upward and downward in a zigzag formation in a vessel, fixing substantially the upper and lower angle portions thereof, and particularly incorporating supports for supporting the angle portions of the long fiber bundles disposed upward and downward in a zigzag formation, into a part of a frame assembled in advance together with frame members, the apparatus being capable of high-volume treatment, causing little clogging, lowering construction costs, and capable of stable long-term operation.