Process for removing arsenic from soil

Details Process for removing arsenic from soil Process for removing arsenic from soil

1992-02-12

1994-03-01

Brunsman, David

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group va metal or arsenic

405263, C01G 2800

Patent

active

052905284

ABSTRACT:
An invention for removing arsenic from contaminated soil is described. The process of this invention involves contacting contaminated soil with a carbonated solution either formed by bubbling carbon dioxide through water or dissolving in alkali metal carbonate in water for contact of the contaminated soil. The supernatent solution resulting can then be treated to remove the arsenic, preferably with reverse osmosis, for further use of the water and the decontaminated soil returned to the environment.

REFERENCES:
patent: 1509688 (1924-09-01), Parsons
patent: 1670307 (1928-05-01), Little
patent: 2686114 (1954-08-01), McGauley et al.
patent: 4778532 (1988-10-01), McConnell et al.
Hawley's Condensed Chemical Dictionary, Eleventh Edition, 1987 p. 861.

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