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Figure showing ET-‐DSP process
In-‐Situ Thermal Remediation Short Course
This short-‐course will provide regulators, consultants, and field applicators with an understanding of the three types of in-‐situ thermal remediation available commercially including: thermal conductive heating, electrothermal desorption and steam. Additional benefits from heat generation will be discussed regarding increasing the rates of naturally occurring processes including hydrolysis, reductive dehalogenation and aerobic or anaerobic biodegradation. Some important design factors for their applicability and operation will be discussed to identify when in situ thermal is appropriate as well as when it is not. The case studies reviewed in the course will identify the thermal technology employed and the results at various site conditions.
In-‐situ thermal remediation (ISTR) offers rapid soil and groundwater remediation that can reduce the time to remediate volatile organic compounds (VOCs) and semi-‐volatile organic
compounds (SVOCs) from years to months. From multiple years of applying this technology on many different contaminants and site lithologies, ISTR now provides site owners with both performance and financial certainty in their site-‐closure process. The ability of the technology
to remediate soil and groundwater impacted by chlorinated solvents and petroleum hydrocarbons, regardless of sediment type and fractured bedrock, proves to be extremely beneficial over conventional in-‐situ technologies that are dependent on adjective flow. The
technology is very tolerant of subsurface heterogeneities and performs as well (if not better) in low-‐permeability silts and clay as it does in higher-‐permeability sands and gravels. By utilizing simple engineered controls, ISTR is routinely implemented around and under
buildings and public access areas without significantly upsetting normal business operations. ISTR may also be combined with other treatment technologies, such as bioremediation or chemical oxidation, to optimize and enhance its performance.
The agenda for the short-‐course:
1. Introduction to In-‐Situ Thermal Remediation (ISTR) technologies and underlying physical principals and technology description
a. ET-‐DSP
b. Thermal Conductive Heating
c. Steam Enhanced Extraction
2. Benefits of ISTR a. Safe and effective
b. Independent of lithology
c. Surface obstructions not a problem
d. Short time of remediation
e. Guaranteed solutions-‐ No contaminant rebound
f. Conservation of soil and minimal impact to community (compared to dig and
dump)
g. No long term liability
3. Site Characterization of ISTR Technology Screening a. Conceptual Site Model Development
b. Chemical Analyses and contaminant properties
c. Bench scale testing
4. Design considerations a. ET-‐DSP
b. Thermal Conductive Heating
c. Steam Enhanced Extraction
d. Waste Stream Treatment Options
e. Other System Considerations
5. Performance Monitoring and Operations and Maintenance 6. Community Acceptance and Education
Learn why in-‐situ thermal remediation can be the lowest cost option and how to determine if it is right for your site.
Administered by: Lowell Kessel, M.Sc., MBA, P.G., R.E.A. Environmental Remediation Resources (ERR) Pty Ltd. 59/148 Chesterville Road, Moorabbin, VIC 3189 Office: (03)9555-‐3800 Lowell@erraus.com.au www.erraus.com.au
Mr. Kessel is a Principal at Environmental Remediation Resources (ERR) Pty Ltd., specializing in the selection and application of advanced site characterization and remediation technologies. His practice experience is in complex hydrogeological and geotechnical investigations and environmental engineering and remediation having worked with large U.S. consulting firms as a consultant and with many other consulting firms large and small internationally as a technology representative and sub consultant. He is a registered professional geologist (PG) and registered environmental assessor (REA) in the U.S. and has designed and managed projects internationally. Mr. Kessel has earned a BS and MS in Geological Sciences from the University of California with research experience in hydrogeochemistry and geophysics.
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