Multi-stage water filters

Details Multi-stage water filters Multi-stage water filters

C - Chemistry, Metallurgy

02

F

C02F 1/00 (2006.01) B01J 20/08 (2006.01) B01J 20/20 (2006.01) C02F 1/28 (2006.01)

Patent

CA 2729311

Water filters and methods of filtering fluids (e.g., water) to produce treated water such as potable water. Specifically, water filters comprising activated carbon, fiber composites, or combinations thereof that are operable to remove heavy metals and/or viruses from fluids to produce potable water. The water filters may comprise at least one carbon filter comprising activated carbon particles, and at least one fiber composite filter comprising electropositive metallic fibers having dimensions of between 5 nm and 100 nm. The fiber composite filter may be disposed upstream of the carbon filter, downstream of the carbon filter, or both.

Cette invention concerne des filtres à eau et des procédés pour filtrer des fluides (par exemple, eau) pour obtenir une eau traitée telle qu'une eau potable. Plus spécifiquement, elle concerne des filtres à eau comprenant du charbon actif, des composites fibreux, ou des combinaisons de ceux-ci aptes à éliminer les métaux lourds et/ou les virus contenus dans des fluides pour obtenir une eau potable. Les filtres à eau selon l'invention peuvent comprendre au moins un filtre à charbon contenant des particules de charbon actif, et un moins un filtre à composite fibreux comprenant des fibres métalliques électropositives ayant des dimensions comprises entre 5 et 100 nm. Le filtre à composite fibreux peut être positionné en amont du filtre à charbon, en aval du filtre à charbon, ou les deux.

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