EP 3976235 A1 20220406 - MEMBRANE-BASED LIQUID FILTRATION INSTALLATION AND METHOD FOR PRODUCING DRINKING WATER THEREWITH WITHOUT POST-MINERALIZATION
Title (en)
MEMBRANE-BASED LIQUID FILTRATION INSTALLATION AND METHOD FOR PRODUCING DRINKING WATER THEREWITH WITHOUT POST-MINERALIZATION
Title (de)
MEMBRANBASIERTE FLÜSSIGKEITSFILTRIERVORRICHTUNG UND VERFAHREN ZUR HERSTELLUNG VON TRINKWASSER DAMIT OHNE NACHMINERALISIERUNG
Title (fr)
INSTALLATION DE FILTRATION MEMBRANAIRE DE LIQUIDES ET PROCEDE DE PRODUCTION D'EAU POTABLE AVEC CELLE-CI SANS POST-MINERALISATION
Publication
Application
Priority
- FR 1905469 A 20190524
- EP 2020064463 W 20200525
Abstract (en)
[origin: WO2020239707A1] Installation for the pressurized filtration of liquid with a view to producing drinking water, comprising at least one membrane-based drinking-water production unit (MPU), each MPU comprising: a plurality of filtration blocks each containing a bundle of pressure tubes mounted in parallel, each pressure tube accommodating at least two membrane-based filtration modules with spiral membranes or hollow-fibre membranes mounted in series, means (20) for feeding the liquid that is to be filtered, means for removing the filtered liquid, and means (30) for removing the concentrate, characterized in that the membranes of the filtration modules are of at least two different types selected from the group consisting of reverse-osmosis membranes and low-pressure reverse-osmosis membranes (4-6), on the one hand, and nanofiltration membranes (1-3) on the other hand, and in that at least one MPU comprises means (21-26) making it possible to alter the order in which the blocks of pressure tubes that it groups together are supplied with fluid. The method consists in supplying the filtration blocks of at least one MPU in a first order of supply in which the tubes containing nanofiltration membranes are at the head of the MPU and then in supplying the pressure tubes in a second order of supply in which the pressure tubes containing reverse-osmosis membranes or low-pressure reverse-osmosis membranes are at the head of the MPU.
IPC 8 full level
B01D 61/58 (2006.01); B01D 61/02 (2006.01); B01D 61/12 (2006.01); B01D 63/02 (2006.01); B01D 63/10 (2006.01); C02F 1/44 (2006.01); C02F 103/08 (2006.01)
CPC (source: EP US)
B01D 61/025 (2013.01 - EP); B01D 61/027 (2013.01 - EP); B01D 61/12 (2013.01 - EP); B01D 61/58 (2013.01 - EP); B01D 63/031 (2022.08 - US); B01D 63/10 (2013.01 - US); C02F 1/441 (2013.01 - EP US); C02F 1/442 (2013.01 - EP US); B01D 63/02 (2013.01 - EP); B01D 63/10 (2013.01 - EP); B01D 2311/06 (2013.01 - EP); B01D 2311/24 (2013.01 - EP); B01D 2311/246 (2013.01 - EP); B01D 2317/025 (2013.01 - EP); B01D 2317/06 (2013.01 - EP); B01D 2317/08 (2013.01 - EP); C02F 2103/08 (2013.01 - EP US); Y02A 20/131 (2018.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 3096279 A1 20201127; FR 3096279 B1 20230324; AU 2020281687 A1 20211209; CN 113874103 A 20211231; EP 3976235 A1 20220406; US 2022234915 A1 20220728; WO 2020239707 A1 20201203
DOCDB simple family (application)
FR 1905469 A 20190524; AU 2020281687 A 20200525; CN 202080038447 A 20200525; EP 2020064463 W 20200525; EP 20726498 A 20200525; US 202017613743 A 20200525