Iron hydroxide removal method

Details Iron hydroxide removal method Iron hydroxide removal method

1992-08-14

1993-06-29

Dawson, Robert A.

Liquid purification or separation

Processes

Separating

210777, 210681, 210688, B01D 3702

Patent

active

052231534

ABSTRACT:
Calcium silicate filter aids have been found to be effective to remove colloidal iron suspensions from aqueous streams without plugging filters. Calcium silicate filter aid is made by heating diatomaceous earth with hydrous lime.

REFERENCES:
patent: 2832473 (1958-04-01), Oberholtzer
patent: 3259571 (1966-07-01), Marshall et al.
patent: 4012320 (1977-03-01), Conner et al.
patent: 4014787 (1977-03-01), Shorr
patent: 4430228 (1984-02-01), Paterson
Coogan, George J., "Iron and Manganese Removal Research with Diatomite Filters", Presented Jun. 19, 1961 at Purification Divsion, American Water Works Association, Philadelphia, Pa.

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