C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/44 (2006.01) A01C 1/02 (2006.01) A01G 9/24 (2006.01) A01G 27/04 (2006.01) B01D 61/36 (2006.01) B01D 71/48 (2006.01) B01D 71/80 (2006.01) C02F 1/00 (2006.01) F24F 6/02 (2006.01)
Patent
CA 2319736
The present invention relates to the use of a hydrophilic membrane to provide by the process of vaporation through the membrane water suitable for agricultural irrigation, industrial use, hydrating or rehydrating of food or agricultural or pharmaceutical compositions. The present invention also relates to a water purification apparatus which includes the hydrophilic membrane, comprising one or more layers of hydrophilic polymers, to purify water which may contain suspended or dissolved impurities and solids, including but not limited to seawater, brackish water and other kinds of polluted water.
La présente invention concerne l'utilisation d'une membrane hydrophile pour obtenir, par le procédé de la pervaporation à travers la membrane, de l'eau appropriée pour l'irrigation agricole, un usage industriel, et l'hydratation ou la réhydratation de compositions alimentaires, agricoles ou pharmaceutiques. La présente invention concerne également un épurateur d'eau comprenant ladite membrane hydrophile, constituée d'une ou de plusieurs couches de polymères hydrophiles, et permettant de purifier l'eau pouvant renfermer des impuretés et des solides dissous ou en suspension, notamment l'eau de mer, l'eau saumâtre et autres types d'eau pollués.
Kirchner Olaf Norbert
Tonkin Mark Christopher
Young Mark Andrew
Bennett Jones Llp
Design Technology & Innovation Limited
E.i. Du Pont de Nemours And Company
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