Liquid purification or separation – Recirculation – Serially connected distinct treating or storage units
Patent
1989-01-03
1990-10-16
Jones, W. Gary
Liquid purification or separation
Recirculation
Serially connected distinct treating or storage units
2101953, 2102572, 210258, 21032175, 21032176, 21032178, 21032184, 21032185, 21032187, 2104161, 2104331, 210645, 210650, B01D 6128, B01D 6306, B01D 6308, B01D 6508
Patent
active
049632531
ABSTRACT:
An apparatus and method for filtering and dialyzing a suspension including particulates and increasing the concentration of retainable matter wherein the suspension is drawn through the filter in a manner such that a negative pressure gradient is exerted on the suspension to cause the particulates to be drawn away from the filter membrane and avoid clogging the filter membrane. The apparatus comprises a multiplicity of pumps which are located downstream from the filter to thereby suck the suspension out of the filter and away from the filter membrane. The apparatus also comprises a multiplicity of different valve arrangements which permit filtering and dialysis to be performed independently of each other or simultaneously. A multiplicity of different filters, including stacked circular and rectangular filters are utilized such that locations within the system with the greatest clogging potential will be compensated and overcome by a corresponding more negative pressure to decrease the potential of clogging.
REFERENCES:
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patent: 3976574 (1976-08-01), White
patent: 4191182 (1980-03-01), Popovich et al.
patent: 4252651 (1981-02-01), Soderstrom
patent: 4366061 (1982-12-01), Papenek et al.
patent: 4540492 (1985-09-01), Kessler
Jones W. Gary
Rozsa Thomas I.
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