Hazardous or toxic waste destruction or containment – Containment – Solidification – vitrification – or cementation
Patent
1994-05-03
1997-07-15
Tsang, Cecilia J.
Hazardous or toxic waste destruction or containment
Containment
Solidification, vitrification, or cementation
588 11, 588 19, 588210, 588212, 588219, 588222, 588225, 588252, 110346, 110342, 20415715, 2041582, 20415821, A62D 300
Patent
active
056485921
ABSTRACT:
The present invention is directed to the art of treating waste using laser technology. Industrial and toxic waste materials are irradiated with a laser inside a reactor chamber such that they are heated to high temperatures. Organic compounds are thermally destroyed and chemical bonds are broken. Cool oxygen is pumped into the reactor to provide a refractory protective shield. Silica is added into the vessel at the high temperatures and encapsulates any heavy metals into its crystal matrix. The resulting solidified product may have a hardness of at least 8 on the Knoops scale of hardness and may be used as tooling, road material, oven lining, building materials and the like.
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Delacroix-Muirheid C.
Tsang Cecilia J.
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