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:
Dec. 31, 1985
Filed:
Feb. 02, 1984
Applicant:
Inventors:
Jacques Bernard, Saint German en Laye, FR;
Jean-Marie Rovel, Rueil Malmaison, FR;
Roger Nicol, Issy Les Moulineaux, FR;
Claude Prevot, Ville d'Avray, FR;
Assignee:
Degremont, Hatus de Seine, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ; C12M / ;
U.S. Cl.
CPC ...
210151 ; 210617 ; 210218 ; 261D / ; 48111 ; 435300 ; 435801 ;
Abstract
An apparatus for the anaerobic filtration of waste water includes a filter of filling material through which the waste water to be treated is passed from the bottom to the top. The filter includes upper and lower superposed layers of filling material separated by an intermediate layer of material. The lower layer is in the form of an ordered arrangement of the material thereof. The upper and intermediate layers each include a loosely packed arrangement of the material thereof.