Plasma Technology: A Tool for Hazardous Waste Vitrification
Abstract
A thermal plasma is an electrically conductive gas capable of generating temperatures up to 10000 degrees C near its column. The energy generated by plasma arcs has been recently applied to hazardous waste control. The technology involves subjecting hazardous material to high temperatures with the purpose of immobilizing non- volatile chemical species into a non-leachable matrix. Plasma arc vitrification processing is well suited for special waste disposal requirements. In addition to its ability to sustain high temperatures, other attractive plasma technology features include its flexibility to operate in either an oxidizing or reducing environment, resultant waste volume reduction, low gas throughput, and flexibility to treat a large variety of waste types. Since 1989 the U.S. Army Corps of Engineers Construction Engineering Research Laboratories have been active participants in the research and developmental efforts undertaken to establish this technology as an efficient, economical, and safe hazardous waste immobilization tool. This paper will provide both a plasma arc technology overview and discuss Army/Department of Defense unique hazardous waste disposal needs, such as pyrotechnic smoke assemblies, thermal batteries, proximity fuzes, and contaminated soil which may be met through utilization of this tool. Specific examples of feasibility studies, Construction Productivity Advancement Research (CPAR) projects, and demonstrations undertaken to immobilize environmentally hazardous materials will be provided. Results of completed activities and on-going developments such as mobile plasma arc systems and dual torch demonstration plans will also be presented.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1996
- Accession Number
- ADP017705
Entities
People
- Edgar D. Smith
- Hany H. Zaghloul
- Rebecca Cortez
Organizations
- Construction Engineering Research Laboratory