Domestic nanofiltration membrane based water purifier...

Details Domestic nanofiltration membrane based water purifier... Domestic nanofiltration membrane based water purifier...

2005-01-11

2005-01-11

Lithgow, Thomas M. (Department: 1724)

Liquid purification or separation

Particulate material type separator, e.g., ion exchange or...

With spaced non-particulate separating means

C210S321600, C210S321730, C210S321800, C210S500280, C210S500330, C210S652000

Reexamination Certificate

active

06841068

ABSTRACT:
A domestic nanofiltration membrane based water purifier without a storage tank. The water purifier according to the present invention uses a nanofiltration membrane filter as a main filtering section and does not have a storage tank for containment of purified water. Although conventional reverse osmosis membrane based water purification systems provide good quality water, they have problems in that installation of the storage tanks due to insufficient flow rate results in the increased volumes of water purifiers, and at the same time, secondary pollution may be caused by microorganism propagation upon prolonged storage. In this regard, the present invention provides a domestic nanofiltration membrane based water purifier without a storage tank, in which a nanofiltration membrane filter with a pore size of approximately 0.1 to 10 nm is used as a main filtering section.

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patent: 2738233 (1997-03-01), None
patent: 9714659 (1997-04-01), None

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