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    Challenging Fast-Moving, High Concentration Chlorinated Solvent Plume Effectively Treated

    Case study highlights

    A permeable reactive barrier installed using advanced colloidal technologies demonstrates pilot test’s effectiveness treating a fast-moving, high-concentration chlorinated solvent plume in groundwater:

    • Within a month of the application, the highest concentrations were reduced by 98 percent.

    • PlumeStop and S-MicroZVI co-injected barrier treats CVOCs for >3 years in high-mass-flux aquifer

    • Additional site design testing used passive flux samplers to better understand contaminant mass flux

    Read the case study
    CVOC remediation

    Hamp, Mathews & Associates, Inc. (HMA), working on behalf of EGLE, collaborated with REGENESIS to develop a remedial approach to address the contaminant plume. Following data review and modeling, a sorption-ERD approach was selected for implementation in a field-scale test, using the following technologies applied in an in situ permeable reactive barrier (PRB).

    In this sorption-ERD approach, PlumeStop® slows the speed of contaminants (i.e., mass flux) entering a barrier, increasing the time available for the added amendments to fully reduce these contaminants into non-toxic end products such as ethene, ethane, carbon dioxide, and chloride before they leave the PRB. In combination, these remedialtechnologies create a highly reactive zone of biogeochemical reduction that can address plumes with high contaminant mass flux.