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:
Apr. 12, 2022
Filed:
Jul. 01, 2016
Total SA, Courbevoie, FR;
Veolia Water Solutions & Technologies Support, Saint Maurice, FR;
Saipem S.a., Montigny le Bretonneux, FR;
Jérôme Anfray, Pau, FR;
Pierre Pedenaud, Lescar, FR;
Graeme Skivington, Glasgow, GB;
Thomas Delaplace, Clichy, FR;
TOTAL SA, Courbevoie, FR;
VEOLIA WATER SOLUTIONS TECHNOLOGIES SUPPORT, Saint Maurice Cédex, FR;
SAIPEM S.A., Montigny le Bretonneux, FR;
Abstract
The present invention is a filtration system and a method for cleaning a filtration system. The filtration system comprising a hydraulic circuit Cp recycling the permeate stream to the feed side of the membrane and/or a hydraulic circuit Cr recycling the retentate stream to the feed side of said membrane. The method injects an amount of a chemical product into the filtration system in the hydraulic circuit Cp or in the hydraulic circuit Cr or upstream of the cross-flow filtration membrane, setting the proportion of recycled permeate stream or recycled retentate stream collected in the hydraulic circuit Cp and/or Cr to enable the recycling of a significant amount of unreacted chemical product having passed through the cross-flow filtration membrane to the feed side of said cross-flow filtration membrane.