Compositions to remove heavy metals and radioactive isotopes fro

Details Compositions to remove heavy metals and radioactive isotopes fro Compositions to remove heavy metals and radioactive isotopes fro

1996-08-28

1999-03-09

Caldarola, Glenn

Catalyst, solid sorbent, or support therefor: product or process

Solid sorbent

Silicon containing

502405, 502407, 502202, 502242, 502250, 252175, 588 9, 588 13, 588 14, 588 15, 210682, 210688, B01J 2010, C02F 502, C02F 142, G21F 900

Patent

active

058800603

ABSTRACT:
Treatment compositions and a method are provided for the removal of a plurality of heavy metals and radioactive isotopes from wastewater. The treatment compositions comprise an alkali; adsorbents, such as montmorillonite and illite clays; catalysts, such as polyelectrolytes and sodium carbonate; one or more flocculants, such as a metal salt and calcium hydroxide; zirconium as a chelating and complexing agent; and boron as a neutron absorbent. The selected composition is introduced into and mixed with the wastewater, which is then filtered to produce a sludge containing the contaminants.

REFERENCES:
patent: 4765908 (1988-08-01), Monick et al.
patent: 5087375 (1992-02-01), Weinwurm

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