Matt Geary
Technical Sales Manager, CETCO
Mr. Geary has over twenty-nine years of experience in the environmental construction industry, ranging from his role as a site superintendent for one of the nation’s largest remedial construction firms to managing a remediation estimating department and serving as Vice President of a mid-sized environmental consulting firm.
Geary brings together a strong, diverse background in applied environmental sciences and extensive knowledge of local state and federal regulations. He has served as a member of the Brownfield Action Committee (BAC) for The Delaware Department of Natural Resources and Environmental Control (DNREC) and presented technical papers and case studies at many local and national conferences. His practical field experience and knowledge of local markets will provide for superior service to our valued customers.
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In-Situ and Ex-Situ Remedy for PFAS Contaminated Groundwater and Drinking Water
This paper will provide background and description of the use of a new adsorbent media for remediation of a PFAS contaminated Ground Water and Drinking Water. Recent advances in the field have led to the development and demonstrated effectiveness of an innovative adsorbent media. This media has proven to be effective on treatment of PFAS contaminated, groundwater, drinking water and sediment.
There have been many types of PFAS compounds released into the environment since there commercial introduction. The most typical compounds include Perfluorooctane Sulphonate (PFOS) and Perfluorooctanoic Acid (PFOA). The many derivatives of these compounds are generally referred to as Per and Polyfluoroalkyl Substances (PFAS).
Several technologies are available for treatment of PFAS. However, limited success has been demonstrated in the field. Many variables effect the performance of the treatment technology. PFAS may be treated by filtration, mechanical separation or destructive technologies. More work is needed to verify the range of conditions where these technologies may be successful.
Recent testing on a new adsorbent media has demonstrated a removal efficiency of between 85-93% when tested with water containing three concentrations of PFAS ranging from 550 to 5500 PPT. This testing is encouraging and indicative of an effective treatment technology. Results from bench and pilot scale demonstration testing will be presented as well.