C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/44 (2006.01) B01D 61/18 (2006.01) B01D 63/08 (2006.01) C02F 1/00 (2006.01)
Patent
CA 2198277
An improvement is provided in a water purification plant including a purification unit, and a pipe unit to lead water thereinto. The pipe unit includes at least one flexible pipe which is connected to the purification unit. The water purification unit is configured to be immersed at least partially into water contained in a storage container. The storage container includes means for leading the water from the storage container into a collecting container which is located underneath the storage container. Such means include a syphon pressure which is caused by a height difference between the purification unit and the collecting container. The improvement is one wherein the water purification unit includes a filter for purifying the water. The filter comprises at least one thin, plane- shaped filtering film which is made of plastic-based material. The filter is preferably made of a Partial Track Membrane or a Track-etch Membrane. The filtering film has a thickness of 7 to 25 micrometers and has pores sizes of 0.05 to 10 micrometers. The water purification unit includes an auxiliary frame having a supporting frame for supporting the filter. The supporting frame is formed of a rigid plate structure which is covered by the filtering films. The supporting frame further has two opposite, imperforate and essentially-plane-shaped supporting side surfaces to which the filtering films are hermetically fastened. Each supporting surface has a plurality of projections thereon for forming a flow space between the filtering film and the supporting surface for leading water that has passed through the filtering film between the filtering film and the supporting surface and through an output pipe, which is provided in the auxiliary frame, into the pipe unit. Outer surfaces of the filtering films facing away from opposite supporting surfaces are each covered by a respective casing part. Such casing parts are releasably-connected to the auxiliary frame by quick-release means in order to enable cleaning of the purification unit.
L'invention concerne un dispositif de purification d'eau comprenant au moins un ensemble de purification (1) et un tuyau (2). Ce dispositif est conçu pour effectuer la purification d'eau accumulée (3) dans un réservoir ou dans une cuve, par exemple, par immersion au moins partielle dudit dispositif dans cette eau et par évacuation de l'eau depuis le réservoir (3), de préférence depuis sa partie supérieure, vers un réservoir collecteur (K) placé au-dessous dudit dispositif (1). Un tuyau (2a) relié au dispositif de purification (1) est conçu pour véhiculer l'eau selon le principe du siphon, sous l'effet de la pression provoquée par la différence entre la hauteur (H) dudit dispositif (1) et celle du réservoir collecteur (K). Le moyen filtrant (1a) comprend au moins une membrane filtrante mince (1a'), de préférence, en matériau à base de plastique, tel que PTM ou TeM par exemple, dont l'épaisseur est, de préférence, de 7 à 25 microns et dont les pores possèdent une dimension de 0,05 à 10 microns.
Aalto Kari
Antipov Valery
Melnikov Alexander
Solyanik Rostislav
Borden Ladner Gervais Llp
Nerox Filter Oy
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