Hazardous or toxic waste destruction or containment – Containment – Solidification – vitrification – or cementation
Reexamination Certificate
2006-01-31
2006-01-31
Kreck, John (Department: 3673)
Hazardous or toxic waste destruction or containment
Containment
Solidification, vitrification, or cementation
C588S256000, C588S260000
Reexamination Certificate
active
06991593
ABSTRACT:
A process for the stabilization of metal bearing waste is provided that is based upon the discovery that landfills have anaerobic environments. This process includes adjusting the pH of the waste and adding a sulfide containing reducing agent to the waste to achieve a reducing environment. In one embodiment, electric arc furnace dust is stabilized for landfill disposal. Also provided is a method for a determination of landfilled waste leachability. This method is performed under conditions that simulate the chemical characteristics of landfills. In one embodiment, stabilized metal bearing waste is deoxygenated and a simulated leachate is prepared under anaerobic conditions.
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Kurek Joe
Price Kenneth S.
Whitfield Kurt
Wissel Herbert I.
Baker & Daniels LLP
Heritage Environmental Services LLC
Kreck John
LandOfFree
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