Development of an integrated, in-situ remediation technology. Topical report for task No. 5: Cost analysis, 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 delivering 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. The Lasagna{trademark} technology is an integrated in situ treatment in which established geotechnical methods are used to install degradation zones directly into the contaminated soil and electro-osmosis if utilized to move the contaminants back and forth through those zones until the treatment is completed. This topical report ... continued below

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36 p.

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Quinton, G.; Schultz, D. & Landis, R. 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 delivering 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. The Lasagna{trademark} technology is an integrated in situ treatment in which established geotechnical methods are used to install degradation zones directly into the contaminated soil and electro-osmosis if utilized to move the contaminants back and forth through those zones until the treatment is completed. This topical report presents the results of an engineering evaluation and cost analysis of the vertically configured treatment process completed by the DuPont Company. The cost evaluation was prepared by developing a cost optimization model of the overall treatment process. This model considers various input parameters such as soil properties, depth of contamination, cost for emplacing electrodes and treatment zones, required purge water volume, time constraints to achieve cleanup, and cost of power. Several example cases were run using the cost model to provide representative cost ranges for applying the technology to clean up trichloroethene contamination in clay. These costs are estimated to range from $40 to $95 per cubic yard of soil for a 1-acre site, with cost depending on depth of contamination (cost range valid from 15 to 45 ft), method of electrode/treatment zone emplacement (cost range valid from 15 to 45 ft), method of electrode/treatment zone emplacement (cost range valid for Lasagna{trademark} Phase I emplacement and optimized emplacement techniques), and time available to complete remediation (cost range valid for one- and three-year timeframe).

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36 p.

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INIS; OSTI as DE97002134

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  • Other Information: PBD: [1997]

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  • Other: DE97002134
  • Report No.: DOE/MC/31185--5389
  • Grant Number: AR21-94MC31185
  • DOI: 10.2172/465890 | External Link
  • Office of Scientific & Technical Information Report Number: 465890
  • Archival Resource Key: ark:/67531/metadc684616

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  • April 1, 1997

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  • July 25, 2015, 2:21 a.m.

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  • June 14, 2016, 3 p.m.

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Quinton, G.; Schultz, D. & Landis, R. Development of an integrated, in-situ remediation technology. Topical report for task No. 5: Cost analysis, September 26, 1994--May 25, 1996, report, April 1, 1997; United States. (digital.library.unt.edu/ark:/67531/metadc684616/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.