Event Type: Webinar
Date: Jul. 12, 2012
Venue: Online, 2:00 PM - 3:00 PM EDT
Understanding Matrix Diffusion Processes
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EOS Remediation, LLC is pleased to announce Charles Newell, P.E., Ph.D., BCEE and David Adamson, P.E., Ph.D., of GSI Environmental Inc., as guest speakers for this highly topical webinar. Participants will receive an overview of matrix diffusion processes and its effects on managing chlorinated solvent sites.
Some key topics covered will include:
Recently, there has been an increasing realization that matrix diffusion is a major challenge for remediation of chlorinated solvent source zones and plumes. Over decades, chlorinated solvents diffuse out of more transmissive zones (e.g., sands) and are stored in low permeability materials (e.g., clays).
Once contaminant concentrations are reduced (via active remediation or natural attenuation), the diffusion gradient reverses, releasing small amounts of contaminants back into transmissive zones (i.e., back diffusion). Matrix diffusion processes have important implications for site characterization, site conceptual models, and our ability to achieve stringent groundwater remediation goals.