Ultraviolet ozone water purifier for water disinfection
First Claim
1. An integrated filtration and sterilization apparatus comprising:
- an ultraviolet lamp disposed within an ultraviolet radiation permeable sleeve such that a gas conduit is formed between an outer surface of said ultraviolet lamp and an inner surface of said sleeve;
a filtration member disposed about said sleeve such that a permeate chamber is formed between an outer surface of said sleeve and an inner surface of said filtration member;
a feed chamber disposed about an outer surface of said filtration member;
means for feeding a liquid to said feed chamber and removing liquid from said permeate chamber;
means for feeding an oxygen-containing gas to, and removing an ozone-containing gas from said gas conduit; and
an ozone injection system for mixing liquid removed from said permeate chamber and ozone-containing gas from said gas conduit downstream from said permeate chamber, said ozone injection system comprising;
at least one component selected from the group consisting of a selective membrane contactor and a hydrophobic membrane contactor; and
means for periodically actuating an injection of ozone into a waterline downstream of said permeate chamber.
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Accused Products
Abstract
An integrated filtration and sterilization apparatus including an ultraviolet lamp disposed within an ultraviolet radiation permeable sleeve such that a gas conduit is formed between an outer surface of the ultraviolet lamp and an inner surface of the sleeve; a filtration member disposed about the sleeve such that a permeate chamber is formed between an outer surface of the sleeve and an inner surface of the filtration member; a feed chamber disposed about an outer surface of the filtration member; a liquid feed for feeding a liquid to the feed chamber and a liquid removal line for removing liquid from the permeate chamber; a gas feed for feeding an oxygen-containing gas to the gas conduit and a gas removal line for removing an ozone-containing gas from the gas conduit; and a mixing device for mixing liquid removed from the permeate chamber and ozone-containing gas from the gas conduit downstream from the permeate chamber.
110 Citations
15 Claims
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1. An integrated filtration and sterilization apparatus comprising:
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an ultraviolet lamp disposed within an ultraviolet radiation permeable sleeve such that a gas conduit is formed between an outer surface of said ultraviolet lamp and an inner surface of said sleeve; a filtration member disposed about said sleeve such that a permeate chamber is formed between an outer surface of said sleeve and an inner surface of said filtration member; a feed chamber disposed about an outer surface of said filtration member; means for feeding a liquid to said feed chamber and removing liquid from said permeate chamber; means for feeding an oxygen-containing gas to, and removing an ozone-containing gas from said gas conduit; and an ozone injection system for mixing liquid removed from said permeate chamber and ozone-containing gas from said gas conduit downstream from said permeate chamber, said ozone injection system comprising; at least one component selected from the group consisting of a selective membrane contactor and a hydrophobic membrane contactor; and means for periodically actuating an injection of ozone into a waterline downstream of said permeate chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A dental unit water supply system which comprises:
an integrated filtration and sterilization apparatus comprising; an ultraviolet lamp disposed within an ultraviolet radiation permeable sleeve such that a gas conduit is formed between an outer surface of said ultraviolet lamp and an inner surface of said sleeve; a filtration member disposed about said sleeve such that a permeate chamber is formed between an outer surface of said sleeve and an inner surface of said filtration member; a feed chamber disposed about an outer surface of said filtration member; means for feeding a liquid to said feed chamber and removing liquid from said permeate chamber; means for feeding an oxygen-containing gas to, and removing an ozone-containing gas from said gas conduit; and an ozone injection system for mixing liquid removed from said permeate chamber and ozone-containing gas from said gas conduit downstream from said permeate chamber, said ozone injection system comprising; at least one component selected from the group consisting of a selective membrane contactor and a hydrophobic membrane contactor; and means for periodically actuating an injection of ozone into a waterline downstream of said permeate chamber; and means for supplying the mixed liquid to a dental unit. - View Dependent Claims (12, 13, 14, 15)
Specification