The use of supercritical carbon dioxide for contaminant removal from solid waste
- Sandia National Labs., Albuquerque, NM (United States)
- Allied-Signal Aerospace Co., Kansas City, MO (United States). Kansas City Div.
Supercritical carbon dioxide is being explored as a waste minimization technique for separating oils, greases and solvents from solid waste. The containments are dissolved into the supercritical fluid and precipitated out upon depressurization. The carbon dioxide solvent can then be recycled for continued use. Definitions of the temperature, pressure, flowrate and potential co-solvents are required to establish the optimum conditions for hazardous contaminant removal. Excellent extractive capability for common manufacturing oils, greases, and solvents has been observed in both supercritical and liquid carbon dioxide. Solubility measurements are being used to better understand the extraction process, and to determine if the minimum solubility required by federal regulations is met.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States); Allied-Signal Aerospace Co., Kansas City, MO (United States). Kansas City Div.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000; AC04-76DP00613
- OSTI ID:
- 10158213
- Report Number(s):
- SAND-94-1444C; KCP-613-5462; CONF-9406181-2; ON: DE94013342; BR: GB0103012; TRN: 94:012178
- Resource Relation:
- Conference: Joint Army, Navy, NASA, Air Force environmentally benign cleaning and degreasing technical workshop,Indian Head, MD (United States),14-15 Jun 1994; Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
54 ENVIRONMENTAL SCIENCES
HAZARDOUS MATERIALS
SUPERCRITICAL GAS EXTRACTION
CARBON DIOXIDE
WASTE PROCESSING
SOLVENTS
SOLIDS
WASTE DISPOSAL
SOLUBILITY
SEPARATION PROCESSES
052001
054000
540000
HEALTH AND SAFETY
ENVIRONMENTAL SCIENCES