Portable water-purifying devices

Details Portable water-purifying devices Portable water-purifying devices

C - Chemistry, Metallurgy

02

F

362/60

C02F 9/00 (2006.01) C02F 1/00 (2006.01) C02F 1/50 (2006.01) C02F 1/76 (2006.01)

Patent

CA 1337709

A portable water-purifying device comprises a primary disinfecting chamber and a combined secondary disinfecting chamber and post-filter Water to be purified can be scooped by means of a cover into a receptacle containing a pre-filter media of preferably silvered activated carbon beneath a coarse entry filter pad . From that receptacle the water enters the primary disinfecting chamber , flowing downwards through nine or so passage-forming segments filled with a microbiocide , to effect primary disinfection, that is, to kill a substantial number of pathogenic organisms, but probably not all. Each passage is at least three times longer than it is wide, to prevent channelling of the water through the microbiocide. Disinfectant from the microbiocide enters the water as it passes through. The disinfectant-containing water from the primary disinfecting chamber enters the combined secondary disinfecting chamber and post-filter - "second chamber " - down a centre tube to be stored for, say, two minutes or so for any remaining viruses, as well as any other remaining pathogenic organisms, to be killed. The second chamber is then inverted, whereupon the water flows through a charge media of preferably silvered granular activated carbon which effects post-filtration, substantially removing the disinfectant from the water, which flows thence into a drinking cup

592204

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