XDD, LLC TO DISCUSS MGP REMEDIATION STRATEGIES AND TECHNOLOGIES AT THE EPRI MGP 2010 SYMPOSIUM
January 14, 2010
The nationally-recognized in-situ remediation consulting firm of XDD, LLC will be descending upon the Lone Star State to participate in the upcoming Electric Power Research Institute (EPRI) Manufactured Gas Plant (MGP) 2010 Symposium from Wednesday, January 27 through Friday, January 29. EPRI's three-day conference will take place at the Westin Riverwalk hotel in San Antonio, TX and will feature a panel presentation, a poster presentation, and a tabletop demonstration delivered by several of XDD's remediation experts. The specific topics to be covered by XDD at the MGP 2010 Symposium include:
DESIGNING FOR LONG-TERM OPERATION OF AEROBIC BARRIER SYSTEMS
At many former MGP sites, oxygen or ozone is being applied to create long-term operating barrier systems for plumes emanating from source areas. XDD President Mike Marley, L.E.P. will discuss the potential long-term impacts of aerobic barrier system operation which must be considered, such as the impacts of mineral precipitation, biological growth and the injected oxygen (or other) gas on the effective hydraulic conductivity of the soils and the effectiveness and operational duration of the barrier. XDD's presentation will examine these parameters within the design of an aerobic trench barrier system.
DRIVERS FOR SUCCESSFUL APPLICATION OF ISCO AT MGP SITES
In-situ chemical oxidation (ISCO) has several beneficial characteristics for application at MGP sites. The primary benefits include an ability to degrade the wide suite of contaminants at MGP sites, cost effectiveness for a variety of conditions, the ability to treat areas that are inaccessible or too deep to consider excavation, and relatively rapid reaction times, on the order of hours to months. This poster, presented by XDD Senior Project Manager Jaydeep Parikh, P.E., will focus on an examination of the key parameters driving the success and costs of applying ISCO at former MGP sites. Methods to estimate the mass and distribution of the MGP residuals and to model the necessary degree of cleanup for success will also be discussed.
DEMONSTRATING SUCCESSFUL IN-SITU REMEDIAL APPROACHES
This tabletop display, organized by XDD Laboratory Director Brant Smith, Ph.D., P.E. and Senior Project Manager Scott Crawford, will illustrate several key concepts and technologies relating to the remediation of MGP residuals. The display will include visual and physical demonstrations of:
- MGP-impacted soils both before and after ISCO treatment;
- An experimental set-up for coal tar bench testing;
- Selecting the appropriate oxidant for ISCO (e.g., stabilized vs. unstabilized); and
- The potential clogging of native or emplaced soils as a result of biomass growth, mineral precipitation, and injected fluid displacement during long-term aerobic treatment.
XDD encourages any individuals who will not be attending the EPRI MGP 2010 Symposium and who are interested in learning more about MGP remediation strategies and technologies to contact Mike Marley at marley@xdd-llc.com or (800) 486-3575.
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