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1. (WO2010073194) METHOD AND PLANT FOR MANAGING THE CLOGGING OF MEMBRANE MODULES AND FILTRATION MEMBRANES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/073194 International Application No.: PCT/IB2009/055807
Publication Date: 01.07.2010 International Filing Date: 17.12.2009
IPC:
B01D 61/12 (2006.01) ,B01D 61/22 (2006.01) ,B01D 65/02 (2006.01) ,C02F 1/44 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
61
Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
02
Reverse osmosis; Hyperfiltration
12
Controlling or regulating
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
61
Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
14
Ultrafiltration; Microfiltration
22
Controlling or regulating
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
02
Membrane cleaning or sterilisation
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
44
by dialysis, osmosis or reverse osmosis
Applicants:
DEGREMONT [FR/FR]; 183 avenue du 18 Juin 1940 F-92500 Rueil Malmaison, FR (AllExceptUS)
BONNELYE, Véronique [FR/FR]; FR (UsOnly)
FERNANDEZ LOPEZ, Francisco [ES/ES]; ES (UsOnly)
Inventors:
BONNELYE, Véronique; FR
FERNANDEZ LOPEZ, Francisco; ES
Agent:
MICHARDIERE, Bernard; Cabinet Armengaud 3, Avenue Bugeaud F-75116 Paris, FR
Priority Data:
08/0739023.12.2008FR
Title (EN) METHOD AND PLANT FOR MANAGING THE CLOGGING OF MEMBRANE MODULES AND FILTRATION MEMBRANES
(FR) PROCEDE ET INSTALLATION POUR LA GESTION DU COLMATAGE DE MODULES MEMBRANAIRES ET DE MEMBRANES DE FILTRATION
Abstract:
(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.
(FR) Procédé de gestion du colmatage de modules membranaires et de membranes de filtration, plus spécialement de nanofiltration, ultrafiltration ou d'osmose inverse, pour le dessalement d'eau, selon lequel on effectue des rinçages successifs pour lutter contre le colmatage, en particulier le colmatage biologique : on effectue une évaluation de l'épaisseur du biofilm; on déclenche un rinçage au plus tard lorsque l'épaisseur évaluée du biofilm dépasse une première valeur de consigne prédéterminée pour l'épaisseur du biofilm, et on arrête le rinçage au plus tôt lorsque l'épaisseur du biofilm est devenue inférieure à une deuxième valeur de consigne prédéterminée plus faible que la première, pour l'épaisseur du biofilm.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
EP2370197US20110290723AU2009332546