Adsorption and filtration mat for liquids

Details Adsorption and filtration mat for liquids Adsorption and filtration mat for liquids

1981-04-28

1983-07-26

Cintins, Ivars C.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

210502, 210505, B01D 3908

Patent

active

043953328

ABSTRACT:
Disclosed are filter mats composed of a wet laid, porous, non-woven matrix having randomly arranged, irregularly intersecting and overlapping cellulose fibers intermixed as a cobeat (i.e. beaten together) with micro-bits of an expanded, thermoplastic styrene-polymer or lower polyolefin or of a flexible foamed polyurethane, and which mix also can include any one or more additional such micro-bits and of fiber-forming polyethylene terephthalate polyester fibers, finely divided activated carbon, diatomaceous earth, and colloidal alumina monohydrate. These mats are effective, for example, to remove insoluble particles and/or soluble substances present in liquid, presently primarily aqueous, media particularly in minute amounts, such as undesirable substances in industrial plant waste waters.

REFERENCES:
patent: 3246767 (1966-04-01), Pall et al.
patent: 3252270 (1966-05-01), Pall et al.
patent: 3327859 (1967-06-01), Pall
patent: 3420709 (1969-01-01), Barrett et al.
patent: 3494826 (1970-02-01), Scheiber
patent: 3657125 (1972-04-01), Strickman
patent: 3960722 (1976-06-01), Tomikawa et al.

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