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Related Experiment Videos

TCE treatment pasta-bilities.

W C Holton

    Environmental Health Perspectives
    |August 28, 1999
    PubMed
    Summary

    Monsanto's Lasagna process effectively removes trichloroethylene (TCE) from soil and groundwater using electro-osmosis. This innovative technology achieved over 98% TCE removal in field tests, offering a promising solution for contaminated sites.

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    Area of Science:

    • Environmental Engineering
    • Remediation Technologies
    • Electrochemistry

    Background:

    • Trichloroethylene (TCE) is a prevalent industrial contaminant in soil and groundwater.
    • TCE degrades slowly in soil and can form toxic byproducts like vinyl chloride.
    • Industrialized nations face significant environmental challenges due to widespread TCE contamination.

    Purpose of the Study:

    • To evaluate the efficacy of Monsanto's Lasagna process for removing TCE.
    • To demonstrate a novel remediation technology for contaminated soil and groundwater.
    • To assess the application of electro-osmosis in environmental cleanup.

    Main Methods:

    • The Lasagna process utilizes buried electrodes and layered treatment zones.
    • Electro-osmosis is employed to draw contaminated water through filtering media.
    • The technology was tested at the Paducah Gaseous Diffusion Plant.

    Main Results:

    • The Lasagna process demonstrated high efficiency in removing TCE.
    • Over 98% of TCE was removed from contaminated soil during field trials.
    • The technology effectively treats low-permeability soils like clays and silts.

    Conclusions:

    • Monsanto's Lasagna process is a highly effective method for TCE remediation.
    • Electro-osmosis combined with filtering media offers a viable solution for soil and groundwater cleanup.
    • The technology shows significant promise for addressing widespread TCE contamination.

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