Method and mixture for treating hazardous wastes

Details Method and mixture for treating hazardous wastes Method and mixture for treating hazardous wastes

1988-06-10

1989-12-26

Wyse, Tom

Liquid purification or separation

Processes

Chemical treatment

210912, 210919, 106118, 405129, C02F 1114

Patent

active

048896403

ABSTRACT:
A method of treating solid hazardous waste containing unacceptable levels of leachable metals such as lead and cadmium includes mixing the solid waste with an agent selected from the group consisting of reactive calcium carbonate, reactive magnesium carbonate and reactive calcium magnesium carbonate. After the solid waste and agent are mixed under conditions which support reaction between the agent and metals, the metals will be converted to nonleachable forms which are relatively stable under normal environmental conditions. If the solid waste material and agent are both dry when mixed, it may be beneficial to add water to facilitate the mixing of the solid waste and agent and the conversion of the metals into nonleachable forms.

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