Electro-Osmotic Remediation of Fine-Grained Sediments.

The coupled-flow phenomenon, electro-osmosis, whereby water flow results from an applied electrical potential gradient, is being used at Lawrence Livermore National Laboratory to induce water flow through deep (25-40 meters below surface) fine-grained sediments. The scoping work described here lays...

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Bibliographic Details
Corporate Authors: United States. Department of Energy. Office of the Assistant Secretary for Defense Programs
Lawrence Livermore National Laboratory
United States. Department of Energy. Office of Scientific and Technical Information
Language:English
Published: Livermore, Calif : Oak Ridge, Tenn. : Lawrence Livermore National Laboratory ; Distributed by the Office of Scientific and Technical Information, U.S. Department of Energy, 1999.
Subjects:
Online Access:
Physical Description:455 Kilobytes pages.
Format: Electronic eBook

MARC

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245 0 0 |a Electro-Osmotic Remediation of Fine-Grained Sediments. 
260 |a Livermore, Calif :  |b Lawrence Livermore National Laboratory ;  |a Oak Ridge, Tenn. :  |b Distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,  |c 1999. 
300 |a 455 Kilobytes pages. 
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500 |c 11/22/1999. 
500 |a "UCRL-JC-136643" 
500 |a 196th Electrochemical Society Inc. Meeting, Conference location not supplied, Conference dates not supplied. 
500 |a Cherepy, N.J.; McNab, W.W.; Wildenschild, D.; Ruiz, R.; Elsholz, A.. 
500 |a Lawrence Livermore National Lab., CA (US) 
520 3 |a The coupled-flow phenomenon, electro-osmosis, whereby water flow results from an applied electrical potential gradient, is being used at Lawrence Livermore National Laboratory to induce water flow through deep (25-40 meters below surface) fine-grained sediments. The scoping work described here lays the groundwork for implementation of this technology to remediate solvent-contaminated clayey zones at the LLNL site. The electro-osmotic conductivity (k{sub e}) measured in-situ between two 37 m deep wells, 3 m apart of 2.3 x 10{sup -9} m{sup 2}/s-V is in good agreement with the value determined from bench-top studies on the core extracted from one of the wells of 0.94 {+-} 0.29 x 10{sup -9} m{sup 2}/s-V. Hydraulic conductivity (k{sub h}) of the same core is measured to be 2.03 {+-} 0.36 x 10{sup -10} m/s. Thus, a voltage gradient of 1 V/cm produces an effective hydraulic conductivity of {approx}1 x 10{sup -7} m/s; an increase in conductivity of nearly three orders of magnitude. 
538 |a Available via the World Wide Web. 
500 |a DOE Technical report ; UCRL-JC-136643 
500 |a Electronic resource. 
650 4 |a Hydraulic Conductivity. 
650 4 |a Implementation. 
650 4 |a Lawrence Livermore National Laboratory. 
650 4 |a Sediments. 
650 4 |a Water. 
650 4 |a Environmental Sciences. 
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