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1. (US20110290723) METHOD AND PLANT FOR MANAGING THE CLOGGING OF MEMBRANE MODULES AND FILTRATION MEMBRANES

Office : United States of America
Application Number: 13141769 Application Date: 17.12.2009
Publication Number: 20110290723 Publication Date: 01.12.2011
Publication Kind : A1
Prior PCT appl.: Application Number:PCTIB0955807 ; Publication Number: Click to see the data
IPC:
B01D 65/08
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
65
Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
08
Prevention of membrane fouling or of concentration polarisation
Applicants: Degremont
Inventors: Bonnelye VĂ©ronique
Fernandez Lopez Francisco
Priority Data: 08/07390 23.12.2008 FR
Title: (EN) METHOD AND PLANT FOR MANAGING THE CLOGGING OF MEMBRANE MODULES AND FILTRATION MEMBRANES
Abstract: front page image
(EN)

The invention relates to a method for managing the plugging of membrane modules and of filtration membranes, in particular for nanofiltration, ultrafiltration or reverse osmosis for desalinating water, which comprises carrying out consecutive rinsing operations for controlling clogging, in particular biological clogging: evaluating the thickness of the biofilm; starting a rinsing operation at the latest when the evaluated thickness of the biofilm exceeds a first predetermined setpoint value for the biofilm thickness and stopping the rinsing operation not before the biofilm thickness has become lower than a second predetermined setpoint value lower than the first one for the biofilm thickness.


Also published as:
EP2370197AU2009332546WO/2010/073194