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Sulfur polymer cement encapsulation of RCRA toxic metals and metal oxides

Conference ·
OSTI ID:210472
;  [1]
  1. Oak Ridge Y-12 Plant, TN (United States)
A series of bench-scale experiments were conducted to study the effects of sodium sulfide additions to sulfur polymer cement (SPC) and hazardous wastes containing heavy metals. Each SPC mixture was analyzed by modified Toxicity Characteristic Leaching Procedure. Experiments conducted with no additives indicated that, for waste streams with small quantities of lead(IV) oxide and aresenic, SPC may be a sufficient encapsulant. The addition of sodium sulfide to the waste mixture yielded metal concentrations below regulatory values only for lead. However, a significant improvement in leaching performance was observed for oxides of arsenic, barium, cadmium, and lead.
DOE Contract Number:
AC05-84OR21400
OSTI ID:
210472
Report Number(s):
CONF-9509139--
Country of Publication:
United States
Language:
English

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