Anti-clogging and dialysis device for filtration systems

Liquid purification or separation – Recirculation – Serially connected distinct treating or storage units

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2101953, 2102572, 210258, 21032175, 21032176, 21032178, 21032184, 21032185, 21032187, 2104161, 2104331, 210645, 210650, B01D 6128, B01D 6306, B01D 6308, B01D 6508

Patent

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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:
patent: 3352422 (1967-11-01), Heden
patent: 3882861 (1975-05-01), Kettering et al.
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

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