Hazardous or toxic waste destruction or containment – Containment – Solidification – vitrification – or cementation
Patent
1995-02-08
1997-02-11
Straub, Gary P.
Hazardous or toxic waste destruction or containment
Containment
Solidification, vitrification, or cementation
588209, 588213, 588900, A62D 300
Patent
active
056022972
ABSTRACT:
A multistage, double closed-loop process and apparatus for organic destruction and removal of volatile organics compounds (VOCs), semi-volatile organic compounds, and halogen acids, removal of toxic metals, and recovery of precious metals and hydrocarbon fuels from gaseous, liquid, and surface-contaminated solid waste streams. Organic destruction of heavy-molecule VOCs is accomplished in a non-combustion thermal reactor by means of thermal energy. Further organic destruction is accomplished by catalytic oxidation. Removing toxic heavy metals or recovering precious metals is accomplished in a bubble-bed reactor in which sub-micron size particles of heavy metals are nucleated, condensed, and deposited onto particles comprising the bed. Acid, particulate, and gas sorbing further remove hazardous substances. Hydrocarbon fuels are recovered by condensing. The process involves high temperature recycling without use of air combustion or incineration to promote a very high degree of decontamination. The process also includes continuous monitoring of levels of carbon monoxide and total hydrocarbons and recycling in a low temperature closed loop thus oxidizing light hydrocarbons and carbon monoxide if these levels are too high for venting.
REFERENCES:
patent: 4303477 (1981-12-01), Schmidt
patent: 4612404 (1986-09-01), Thyasarjan
patent: 4782625 (1988-11-01), Gerkew et al.
patent: 4823711 (1989-04-01), Kroneberger et al.
patent: 5179903 (1993-01-01), Abboud et al.
patent: 5200033 (1993-04-01), Weitzman
patent: 5264654 (1993-11-01), Kreft et al.
patent: 5393501 (1995-02-01), Clawson
patent: 5414205 (1995-05-01), Tischler
Kier Philip H.
Straub Gary P.
LandOfFree
Multistage double closed-loop process for waste decontamination does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multistage double closed-loop process for waste decontamination, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multistage double closed-loop process for waste decontamination will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-343562