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:
May. 26, 1992
Filed:
Dec. 13, 1990
Applicant:
Inventors:
Pieter A Lourens, Rijswijk, NL;
Robert J Zoetemeyer, Montfoort, NL;
Assignee:
Gist-Brocades N.V., Delft, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210603 ; 210617 ;
Abstract
The present invention relates to a process for the anaerobic purification of waste water which comprises a fluidized-bed process in which granular sludge is applied. Moreover apparatus is disclosed for the purification of waste water using a fluidized-bed reactor wherein a liquid introduction device is present which is formed by one or more separate inlet pipes, the pipes delivering the liquid near the bottom of the reactor with an outlet velocity of 0.5-4 m/s, preferably 1-2 m/s.