Advanced oxidation and reduction processes: Closed-loop applications for mixed waste
At Los Alamos we are engaged in applying innovative oxidation and reduction technologies to the destruction of hazardous organics. Non thermal plasmas and relativistic electron-beams both involve the generation of free radicals and are applicable to a wide variety of mixed waste as closed-loop designs can be easily engineered. Silent discharge plasmas (SDP), long used for the generation of ozone, have been demonstrated in the laboratory to be effective in destroying hazardous organic compounds and offer an altemative to existing post-incineration and off-gas treatments. SDP generates very energetic electrons which efficiently create reactive free radicals, without adding the enthalpy associated with very high gas temperatures. A SDP cell has been used as a second stage to a LANL designed, packed-bed reactor (PBR) and has demonstrated DREs as high as 99.9999% for a variety of combustible liquid and gas-based waste streams containing scintillation fluids, nitrates, PCB surrogates, and both chlorinated and fluorinated solvents. Radiolytic treatment of waste using electron-beams and/or bremsstrahlung can be applied to a wide range of waste media (liquids, sludges, and solids). The efficacy and economy of these systems has been demonstrated for aqueous waste through both laboratory and pilot scale studies. We win present recent experimental and theoretical results for systems using stand alone SDP, combined PBR/SDP, and electron-beam treatment methods.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6486824
- Report Number(s):
- LA-UR-93-1197; CONF-930873-8; ON: DE93012624
- Resource Relation:
- Conference: 2. international mixed waste symposium, Baltimore, MD (United States), 17-20 Aug 1993
- Country of Publication:
- United States
- Language:
- English
Similar Records
Cost effectiveness of Silent Discharge Plasma for point-of-use VOC emissions control in semiconductor fabrication
Treatment of hazardous organic wastes using silent discharge plasmas
Related Subjects
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
LOW-LEVEL RADIOACTIVE WASTES
RADIOACTIVE WASTE PROCESSING
RADIOLYSIS
MIXTURES
THERMAL DEGRADATION
ORGANIC COMPOUNDS
DECOMPOSITION
CALCIUM CARBONATES
CARBON TETRACHLORIDE
CHEMICAL REACTORS
CHLORINATED ALIPHATIC HYDROCARBONS
COMPARATIVE EVALUATIONS
ELECTRON BEAMS
ENTHALPY
FERROCYANIDES
GAS CHROMATOGRAPHY
HYDROXIDES
INFRARED SPECTROMETERS
NITRATES
PACKED BEDS
POLYCHLORINATED BIPHENYLS
RADICALS
ALKALINE EARTH METAL COMPOUNDS
AROMATICS
BEAMS
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHLORINATED AROMATIC HYDROCARBONS
CHROMATOGRAPHY
COMPLEXES
DISPERSIONS
EVALUATION
HALOGENATED ALIPHATIC HYDROCARBONS
HALOGENATED AROMATIC HYDROCARBONS
HYDROGEN COMPOUNDS
IRON COMPLEXES
LEPTON BEAMS
MANAGEMENT
MATERIALS
MEASURING INSTRUMENTS
NITROGEN COMPOUNDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
PARTICLE BEAMS
PHYSICAL PROPERTIES
PROCESSING
RADIATION EFFECTS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE MANAGEMENT
RADIOACTIVE WASTES
SEPARATION PROCESSES
SPECTROMETERS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPLEXES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
052001* - Nuclear Fuels- Waste Processing
400600 - Radiation Chemistry