C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/31
C02F 1/42 (2006.01) B01J 39/02 (2006.01)
Patent
CA 1180826
ABSTRACT OF THE DISCLOSURE A filter device for removing organic contaminants from water comprises a filter housing having an inlet for water at one end and an outlet for water at an opposite end and three layers of filter material contained in the housing. The first layer is a hydrophobic organophilic silicalite capable of functioning as a molecular seive and of adsorbing molecules as large as benzene. The second layer comprises a type I, strong base anion exchange resin of high porosity and high capacity while the third layer comprises activated carbon. The three layers are arranged one after another in series. Preferably the first layer is S-115 silicalite while the second layer is a copolymeric matrix made from styrene divinylbenzene. In the preferred embodiment the first layer of material is adjacent to the inlet.
448885
Houser Stan
Ridout & Maybee Llp
LandOfFree
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