B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 61/00 (2006.01) B01D 19/00 (2006.01) C02F 1/20 (2006.01)
Patent
CA 2085472
Method and apparatus for removing dissolving radon gas from water for the purpose of reducing the exposure of house- hold occupants to elevated airborne radon levels. Radon removal is accomplished by a membrane - mediated air stripping pro- cess which is based on the passage of radon from water (28) flowing along one surface of the membrane to stripping air (27) flow- ing along the second surface of the membrane. Particularly careful are dense polymeric membranes comprised of silicone rubber and hydrophobic microporous membranes. The dense membranes may be self- supporting, but are preferably composite mem- branes consisting of a dense film on a porous support membrane.
Matson Stephen L.
Ogilvy Renault
LandOfFree
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