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U.S. Department of Energy
Office of Scientific and Technical Information

Phase Equilibria Modification by Electric Fields

Technical Report ·
DOI:https://doi.org/10.2172/827414· OSTI ID:827414
The objective of this project is to use electric fields to favorably manipulate the thermodynamic and transport properties of mixtures so that higher separation efficiencies can be achieved. The main focus is to understand and quantify the influence of electric fields on vapor-liquid, liquid-liquid, and solid-liquid systems. This program will lead to greater separation efficiency in a wide range of environmental treatment processes, including solvent extraction, sorption, distillation, and stripping. Such processes are widely used by DOE for treatment of wastes and sites contaminated with heavy metals, radionuclides, and organic solvents. Particular examples of applications of vapor-liquid-equilibria modification can be found in the separation of volatile organic compounds by either stripping or distillation. Improvements can also be made in liquid-liquid-extraction processes of TRU, Sr, Tc, and Cs by both thermodynamic and transport enhancements. Separations of metal ions by electrosorption can be used to remove such metal ions as Cs, Sr, Co, Pu, Cr, Cd, and Hg.
Research Organization:
Oak Ridge National Lab., Oak Ridge, TN; University of Tennessee, Knoxville, TN (US)
Sponsoring Organization:
USDOE Office of Environmental Management (EM) (US)
OSTI ID:
827414
Report Number(s):
EMSP-55119--1999
Country of Publication:
United States
Language:
English