Hazardous or toxic waste destruction or containment – Containment – Solidification – vitrification – or cementation
Patent
1995-08-29
1997-01-21
Suchfield, George A.
Hazardous or toxic waste destruction or containment
Containment
Solidification, vitrification, or cementation
588 3, 588 6, 588252, 588259, 106697, B09B 300, G21F 900
Patent
active
055955614
ABSTRACT:
A low-temperature method for producing coated hazardous waste pellets which re used as the aggregate in a concrete wasteform is characterized by combining hazardous waste with a chemically setting organic polymer to form a mixture which is formed into pellets. The pellets are first coated with epoxy and then coated with a silicate-based powder. The liquid concrete-pellet mixture is then placed in molds which can be rotated to concentrate the pellets away from the perimeter of the wasteform. The double-coated hazardous waste pellets have improved bonding when used as a coarse aggregate in a concrete mixture. The resulting wasteform is self-supporting and needs no external container for transportation, storage, or disposal.
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Bean Dennis L.
Brabston William N.
Malone Philip G.
Sykes Melvin C.
Tom Judy C.
Marsh Luther A.
Suchfield George A.
The United States of America as represented by the Secretary of
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