Treatment of liquid using porous polymer containment member

Details Treatment of liquid using porous polymer containment member Treatment of liquid using porous polymer containment member

B - Operations, Transporting

01

D

B01D 15/08 (2006.01)

Patent

CA 2574931

The present invention features a device for treating liquid including a containment member comprised of rigid porous polymer configured to form a containment space. Nonbonded particulate media is disposed in the space in contact with and contained by the containment member. Pores in the containment member are characterized by pore paths and pore sizes effective to permit flow of liquid through the pores while preventing the media from traveling through the pores. The containment member may be in various shapes and include different numbers of components. One variation of the containment member includes first and second containment layers comprised of the rigid porous polymer, which are configured and arranged so as to form a space therebetween in which the media is contained. Another variation of the containment member includes first and second porous polymer tubes forming a space in which the media is contained. Also featured is a method of using the device. Another aspect of the invention is a system that includes the device and a pH adjuster device that may function as an acidifier or basifier, which improves the performance of the liquid treatment device in removing substances from liquids by raising or lowering the pH of the influent traveling through the media of the liquid treatment device.

L'invention concerne un dispositif permettant de traiter un liquide, qui comprend un élément de confinement à base de polymère, configuré pour former un espace de confinement. Des milieux particulaires non liés, sont disposés dans des espaces en contact avec l'élément de confinement et délimité par ledit élément. Les pores contenus dans l'élément de confinement sont caractérisés en ce qu'ils présentent des passages et des dimensions efficaces pour permettre l'écoulement du liquide à travers les pores, tout en empêchant les milieux de migrer à travers les pores. L'élément de confinement peut avoir différentes formes et comprendre différents nombres de constituants. Selon une variation de l'élément de confinement, ce dernier comprend de premières et de secondes couches de confinement à base du polymère poreux rigide, qui sont configurées et disposées de manière à former un espace entre, dans lequel les milieux sont compris. Selon une autre variation de l'élément de confinement, ce dernier comprend de premiers et de seconds tubes polymères poreux formant une espace dans lequel les milieux sont compris. L'invention concerne également une méthode permettant d'utiliser ledit dispositif. Un autre aspect de l'invention concerne un système qui comprend le dispositif et un système d'ajustement du pH, apte à fonctionner comme un acidifiant ou un basifiant, ce qui améliore la performance du dispositif de traitement de liquide dans les opérations d'élimination de substances contenues dans des liquides, par augmentation ou abaissement du pH de la migration influente à travers les milieux du dispositif de traitement de liquide.

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