Electrokinetic electrode system for extraction of soil contaminants from unsaturated soils
Abstract
An electrokinetic electrode assembly is described for use in extraction of soil contaminants from unsaturated soil in situ. The assembly includes a housing for retaining a liquid comprising an electrolyte solution, pure water, and soil water, the housing being in part of porous material capable of holding a vacuum. An electrode is mounted in the housing. The housing is provided with a vacuum orifice for effecting a vacuum within the housing selectively to control flow of soil water through the housing into the chamber and to control outflow of the liquid from the chamber. The assembly further includes conduit means for removing the liquid from the housing and returning the electrolyte solution to the housing, and a conduit for admitting pure water to the housing. An electrode system and method are also revealed for extraction of soil contaminants. The system and method utilize at least two electrode assemblies as described above. 5 figs.
- Inventors:
- Issue Date:
- Research Org.:
- AT&T
- OSTI Identifier:
- 87756
- Patent Number(s):
- 5435895
- Application Number:
- PAN: 8-283,233
- Assignee:
- Sandia Corporation, Albuquerque, NM (United States)
- DOE Contract Number:
- AC04-76DP00789
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 25 Jul 1995
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; SOILS; REMEDIAL ACTION; EXTRACTION APPARATUSES; DESIGN; POLLUTANTS; REMOVAL; IN-SITU PROCESSING; FLUID FLOW; TECHNOLOGY ASSESSMENT
Citation Formats
Lindgren, E R, and Mattson, E D. Electrokinetic electrode system for extraction of soil contaminants from unsaturated soils. United States: N. p., 1995.
Web.
Lindgren, E R, & Mattson, E D. Electrokinetic electrode system for extraction of soil contaminants from unsaturated soils. United States.
Lindgren, E R, and Mattson, E D. Tue .
"Electrokinetic electrode system for extraction of soil contaminants from unsaturated soils". United States.
@article{osti_87756,
title = {Electrokinetic electrode system for extraction of soil contaminants from unsaturated soils},
author = {Lindgren, E R and Mattson, E D},
abstractNote = {An electrokinetic electrode assembly is described for use in extraction of soil contaminants from unsaturated soil in situ. The assembly includes a housing for retaining a liquid comprising an electrolyte solution, pure water, and soil water, the housing being in part of porous material capable of holding a vacuum. An electrode is mounted in the housing. The housing is provided with a vacuum orifice for effecting a vacuum within the housing selectively to control flow of soil water through the housing into the chamber and to control outflow of the liquid from the chamber. The assembly further includes conduit means for removing the liquid from the housing and returning the electrolyte solution to the housing, and a conduit for admitting pure water to the housing. An electrode system and method are also revealed for extraction of soil contaminants. The system and method utilize at least two electrode assemblies as described above. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 25 00:00:00 EDT 1995},
month = {Tue Jul 25 00:00:00 EDT 1995}
}