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CLU-IN Studio
United States Environmental Protection Agency
DNAPLs - Above-Ground (Ex situ) Chemical/Physical Remediation Methods
Sponsored by: National Institutes of Health, National Institute of Environmental Health Sciences, Superfund Basic Research Program
Original Time/Date of Presentation:

September 7, 2005, 2:30 PM - 4:30 PM, EDT (18:30-20:30 GMT)

Presentation Overview:

This seminar is the second in a series sponsored by the NIEHS Superfund Basic Research Program. Dr. Chang Cha, of Cha Corporation will discuss his recent work with "Microwave Technology for Superfund Site Remediation." Dr. Cha has received NIEHS SBIR grants to demonstrate this technology, and to design, construct and operate a mobile unit to be used in the field. Among this technology's potential applications is for the recovery and recycling of fuel, solvents, and other chemicals from soil vapors produced during remediation operations of contaminated sites including old gas stations. Dr. Eric Betterton, of the University of Arizona will present his work investigating the difficulties associated with the detruction or final disposal of chlorinated solvents that are traditionally recovered from contaminated sites via pump and treat or soil vapor extraction methods. Pump and treat and soil vapor extraction merely transfer contaminants from one medium to another. There is a significant need for the development of new destructive treatment technologies to help clean up the nation's long list of Superfund sites. Additional SBRP seminars in October and November will address DNAPLs monitoring, biological remediation, and chemical/physical remediation methods.

Presenters: Instructors: Moderator:
  • Larry Whitson, National Institutes of Health, National Institute of Environmental Health Sciences (
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