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.

Date of Patent:
May. 11, 2021

Filed:

Mar. 06, 2019
Applicant:

Veolia Water Solutions & Technologies Support, Saint-Maurice, FR;

Inventors:

Johan Gustav Alexander Jibert, Oxie, SE;

Emil Svensson, Trelleborg, SE;

Filip Thysell, Trelleborg, SE;

Per Larsson, Trelleborg, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 33/76 (2006.01); B01D 33/00 (2006.01); B01D 33/50 (2006.01); C02F 1/00 (2006.01); B01D 33/21 (2006.01); B01D 33/23 (2006.01); B01D 33/46 (2006.01);
U.S. Cl.
CPC ...
B01D 33/76 (2013.01); B01D 33/0009 (2013.01); B01D 33/0074 (2013.01); B01D 33/21 (2013.01); B01D 33/23 (2013.01); B01D 33/463 (2013.01); B01D 33/50 (2013.01); C02F 1/004 (2013.01); B01D 2201/084 (2013.01);
Abstract

A rotary disc filter includes one or more filter discs secured to a rotary drum and include a series of circumferentially spaced backwash guides disposed in the filter disc. During backwashing, the backwash guides function to engage a mixture of backwash and suspended solids and guide or direct the mixture to a sludge trough disposed in the disc filter. The backwash guides generally assure that a greater percentage of the backwash and suspended solids mixture end up in the solids trough.


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