Development of the integrated, in-situ remediation technology. Topical report for tasks No. 8 and No. 10 entitled: Laboratory and pilot scale experiments of Lasagna{trademark} process, September 26, 1994--May 25, 1996

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Contamination in low permeability soils poses a significant technical challenge to in-situ remediation efforts. Poor accessibility to the contaminants and difficulty in delivery of treatment reagents have rendered existing in-situ treatments such as bioremediation, vapor extraction, pump and treat rather ineffective when applied to low permeability soils present at many contaminated sites. This technology is an integrated in-situ treatment in which established geotechnical methods are used to install degradation zones directly in the contaminated W and electro-osmosis is utilized to move the contaminants back and forth through those zones until the treatment is completed. This topical report summarizes the results ... continued below

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71 p.

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Ho, Sa V.; Athmer, C.J. & Sheridan, P.W. April 1, 1997.

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Description

Contamination in low permeability soils poses a significant technical challenge to in-situ remediation efforts. Poor accessibility to the contaminants and difficulty in delivery of treatment reagents have rendered existing in-situ treatments such as bioremediation, vapor extraction, pump and treat rather ineffective when applied to low permeability soils present at many contaminated sites. This technology is an integrated in-situ treatment in which established geotechnical methods are used to install degradation zones directly in the contaminated W and electro-osmosis is utilized to move the contaminants back and forth through those zones until the treatment is completed. This topical report summarizes the results of the lab and pilot sized Lasagna{trademark} experiments conducted at Monsanto. Experiments were conducted with kaofinite and an actual Paducah soil in units ranging from bench-scale containing kg-quantity of soil to pilot-scale containing about half a ton of soil having various treatment zone configurations. The obtained data support the feasibility of scaling up this technology with respect to electrokinetic parameters as well as removal of organic contaminants. A mathematical model was developed that was successful in predicting the temperature rises in the soil. The information and experience gained from these experiments along with the modeling effort enabled us to successfully design and operate a larger field experiment at a DOE TCE-contaminated clay site.

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71 p.

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INIS; OSTI as DE97002150

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  • Other Information: PBD: [1997]

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  • Other: DE97002150
  • Report No.: DOE/MC/31185--5375
  • Grant Number: AR21-94MC31185
  • DOI: 10.2172/465889 | External Link
  • Office of Scientific & Technical Information Report Number: 465889
  • Archival Resource Key: ark:/67531/metadc674245

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  • April 1, 1997

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  • July 25, 2015, 2:21 a.m.

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  • June 13, 2016, 7:13 p.m.

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Ho, Sa V.; Athmer, C.J. & Sheridan, P.W. Development of the integrated, in-situ remediation technology. Topical report for tasks No. 8 and No. 10 entitled: Laboratory and pilot scale experiments of Lasagna{trademark} process, September 26, 1994--May 25, 1996, report, April 1, 1997; United States. (digital.library.unt.edu/ark:/67531/metadc674245/: accessed November 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.