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TerraTherm, Inc. Wins Award for Breakthrough Thermal Remediation Project Combining Conduction and Steam Technologies in Denmark
Feb 17, 2009 10:30 ET

FITCHBURG, MA--(Marketwire - February 17, 2009) - TerraTherm, a leading provider of in situ thermal remediation (ISTR) technologies and services, has been awarded a 2008 Project Merit Award for Remediation for successful completion of the world's first project combining Thermal Conduction Heating (TCH) and Steam Enhanced Extraction (SEE) by the Environmental Business Journal (EBJ). The EBJ noted that the project addressed numerous complexities, including execution in very tight spaces within and beneath a working dry cleaning facility, which remained in operation throughout, as well as close proximity to urban infrastructure such as gas, sewer and electrical lines. The Danish consultant NIRAS, Danish contractor Arkil A/S and TerraTherm's Scandinavian licensee Kruger A/S, a subsidiary of Veolia Water Solutions & Technologies, collaborated with TerraTherm on both design and direction.

Underlying geology and hydrology challenges were also overcome to recover significant dense non-aqueous phase liquids (DNAPL), which threatened the municipal water supply of Odense, Denmark's third largest city. "TerraTherm has made an important contribution to the protection of critical resources for Odense, which is a vibrant cultural and technological center in the heart of Southern Denmark," observed Hans Skou, project manager for the Southern Region of Denmark, the client.

Perchloroethene (PCE) DNAPLs had migrated through 11 m (35 feet) of clay till into a high-yielding sandy groundwater aquifer, to a treatment depth of 14 m (46 feet). The identified remedial goal, which called for removal of 800 kilograms of PCE to reduce concentrations to 10 mg/kg or below, was far exceeded by the actual results, which recovered more than 4000 kilograms of contamination, representing a removal efficiency of 99.75%. This was accomplished in 4.5 months, with completion 45 days ahead of schedule.

"Combining two thermal remediation technologies in this project was the optimal way to achieve complete source-zone cleanup of both the clay, using TCH, and the sandy aquifer, using SEE. Leveraging combinations like this, TerraTherm's technologies can address a huge range of contaminants, stratigraphies, soils and hydrology. Combined technologies allow us to tailor project designs to the requirements of even the most complex sites," said Dr. Gorm Heron, Chief Technology Officer of TerraTherm, Inc. Heron also stated that TerraTherm anticipates the increasing application of combined thermal technologies to meet the requirements of complex sites worldwide.

About TerraTherm

TerraTherm, Inc. is a worldwide leader in the development and implementation of in situ thermal remediation of source zones and hazardous waste. We design, build and operate projects from concept to closure, using Thermal Conduction Heating (TCH), Steam Enhanced Extraction (SEE) and Electrical Resistance Heating (ERH). With offices in Fitchburg, MA, Keene, CA, and Atlanta, GA, and licensees such as Kruger A/S (Denmark and Sweden), AIG Engineering, Ltd. (UK), and SheGoTec (Japan), we offer services worldwide. For more information, visit

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