| With the general inability of existing groundwater remediation techniques to efficiently remove dense non-aqueous phase liquids (DNAPLs) from the subsurface, a novel strategy known as the Brine Barrier Remediation Technique (BBRT) has been proposed as a potential alternative to currently used remedial strategies. However, there are still numerous open issues concerning this new technology including the complexities it introduces into contaminated systems that cause the analytical methods commonly used for system characterization to fail.; New analytical methods were developed that were compatible with BBRT, and capable of quantifying the common groundwater contaminant, perchloroethene (PCE), chlorinated degradation products, and two surfactants, MA-80 and Triton X-100 often employed in remediation techniques. The developed methods were subsequently used to calculate mass balances for PCE and surfactant recovery within a field-scale implementation of the BBRT. Supplemental experiments were conducted to more closely examine the fate of unrecovered surfactants in the field system. |
