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Title: Electrokinetic electrode system for extraction of soil contaminants from unsaturated soils

Abstract

There is presented an electrokinetic electrode assembly 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. There is further presented an electrode system and method for extraction of soil contaminants, the system and method utilizing at least two electrode assemblies as described above.

Inventors:
 [1];  [1]
  1. (Albuquerque, NM)
Issue Date:
Research Org.:
AT & T CORP
OSTI Identifier:
869998
Patent Number(s):
5435895
Assignee:
Sandia Corporation (Albuquerque, NM) SNL
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
electrokinetic; electrode; extraction; soil; contaminants; unsaturated; soils; assembly; situ; housing; retaining; liquid; comprising; electrolyte; solution; pure; water; porous; material; capable; holding; vacuum; mounted; provided; orifice; effecting; selectively; control; flow; chamber; outflow; conduit; means; removing; returning; admitting; method; utilizing; assemblies; described; electrode assembly; porous material; conduit means; electrolyte solution; control flow; method utilizing; material capable; pure water; soil water; soil contaminants; electrokinetic electrode; oil water; unsaturated soil; electrode assemblies; /204/588/

Citation Formats

Lindgren, Eric R., and Mattson, Earl D. Electrokinetic electrode system for extraction of soil contaminants from unsaturated soils. United States: N. p., 1995. Web.
Lindgren, Eric R., & Mattson, Earl D. Electrokinetic electrode system for extraction of soil contaminants from unsaturated soils. United States.
Lindgren, Eric R., and Mattson, Earl D. Sun . "Electrokinetic electrode system for extraction of soil contaminants from unsaturated soils". United States. https://www.osti.gov/servlets/purl/869998.
@article{osti_869998,
title = {Electrokinetic electrode system for extraction of soil contaminants from unsaturated soils},
author = {Lindgren, Eric R. and Mattson, Earl D.},
abstractNote = {There is presented an electrokinetic electrode assembly 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. There is further presented an electrode system and method for extraction of soil contaminants, the system and method utilizing at least two electrode assemblies as described above.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}

Patent:

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