Filter system and a cartridge containing a cellular granular mat

Details Filter system and a cartridge containing a cellular granular mat Filter system and a cartridge containing a cellular granular mat

1998-03-25

1999-11-09

Woo, Jay H.

Liquid purification or separation

Processes

Separating

210800, 210169, 210265, 210282, 210290, 2104162, B01D 3906, B01D 2404

Patent

active

059807610

ABSTRACT:
The main application of the invention lies in making cartridges, filters and complete filter systems for regeneration purposes, in particular for regenerating swimming pool water, and for that purpose it comprises at least a system for physically treating water by means of an inert granular material enclosed in at least one envelope through which said water can flow, passing through said material; according to the invention, the material is of cellular structure, having relative density of less than 1, and is constituted by pozzolan having a grain size that is less than or equal to 25 mm.

REFERENCES:
patent: 3618774 (1971-11-01), Delphia
patent: 4108775 (1978-08-01), Wilkes et al.
patent: 5584992 (1996-12-01), Sugimoto
patent: 5705001 (1998-01-01), Iwata et al.

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