Filter for removing heavy metals from drinking water

Details Filter for removing heavy metals from drinking water Filter for removing heavy metals from drinking water

1988-04-25

1990-02-20

Fisher, Richard V.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

2104971, 2105021, 210505, 210912, B01D 2314, B01D 2948

Patent

active

049024272

ABSTRACT:
A filter for reducing heavy metals in water employs particulate boneblack (bone char) material as a filtration agent. A layer of boneblack (bone char) impregnated filter material and a layer of fibrous substrate are helically interwound around a hollow, porous central core to form the cartridge elements of a filter cartridge designed to reduce heavy metal concentrations in drinking water. A porous outer cage encloses the helically wound layers, and end caps are bonded to the cartridge elements at each end thereof. Methods of using boneblack particles to reduce heavy metal concentrations in water are also disclosed.

REFERENCES:
patent: 4402830 (1983-09-01), Pall
patent: 4783259 (1988-11-01), Wade
patent: 4789475 (1988-12-01), Harte et al.

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