Liquid purification or separation – With means to add treating material – With distinct reactor tank – trough or compartment
Patent
1996-07-09
1999-08-31
Popovics, Robert J.
Liquid purification or separation
With means to add treating material
With distinct reactor tank, trough or compartment
2102571, 210284, 210446, 210449, 210753, 210764, B01D 1500
Patent
active
059449896
ABSTRACT:
Embodiments of a method and apparatus for filtering or treating water are shown and described, each embodiment being for multiple-stage processing of water, with storage intermediate between the stages. Water is passed through a first zone of a filter housing cavity and conducted through an intermediate port to storage. When water is demanded by a usage device, water flows in reverse from storage back into the filter, to flow through the second zone for a second stage of filtering/treatment, and then out an outlet port to the usage device. Water may also flow from the water source directly through the first and second zones and to the usage device, without intermediate storage. Preferably, both first and second zones are contained and axially arranged within a single filter housing. Preferably, water flows bi-directionally through a central return tube, or other axial passage through the first zone media, so that this tube or axial passage may be used as the collector for the first-zone effluent and also the distributor for the second zone feed.
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Pedersen Barbara S.
Pedersen Ken J.
Popovics Robert J.
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