Toxic waste fixant and method for using same

Details Toxic waste fixant and method for using same Toxic waste fixant and method for using same

1992-10-01

1994-09-13

Corbin, David H.

Hazardous or toxic waste destruction or containment

Containment

Solidification, vitrification, or cementation

106733, 405266, 588252, B09B 300, C04B 1804

Patent

active

053470770

ABSTRACT:
A toxic waste fixant for detoxification of a contaminated soil, sediment, and or sludge material includes a mixture of: ferric and/or ferrous sulfate, manganese sulfate, and/or aluminium sulfate and/or Portland cement, and/or gypsum (calcium sulfate), and/or blast furnace slag, and/or lime (calcium oxide). Fixants made from mixtures of the above compounds are designed to prevent leaching in excess of regulatory standards for specified inorganic and organic toxic compounds and elements. These fixants will also reduce the concentration of most organic toxic compounds through various chemical reactions and bonding as determined by solvent extractions and analysis by GC/MS. The ferric and/or ferrous sulfate may be partially or completely replaced by cobalt sulfate, whereas instead of the respective sulfates the corresponding chlorides may be used as well.

REFERENCES:
patent: 4142912 (1979-03-01), Young
patent: 4209335 (1980-06-01), Katayama et al.
Chemical Abstract vol. 102, No. 10, abstract No. 83429v.

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