Electrical resistance heating

TRS Group Awarded Patent for Remediating PFAS Using Combination of ERH and TCH Thermal Technologies

Retrieved on: 
Tuesday, May 25, 2021
Soil contamination, Environmental engineering, Electrical resistance heating, Articles, Natural environment, ERH, Soil, Central heating

LONGVIEW, Wash., May 25, 2021 /PRNewswire-PRWeb/ -- The U.S. Patent and Trademark Office has awarded TRS Group (TRS) a patent for remediating contaminants in soil and groundwater by integrating electrical resistance heating (ERH) and thermal conduction heating (TCH) in the same borehole.

Key Points: 
  • LONGVIEW, Wash., May 25, 2021 /PRNewswire-PRWeb/ -- The U.S. Patent and Trademark Office has awarded TRS Group (TRS) a patent for remediating contaminants in soil and groundwater by integrating electrical resistance heating (ERH) and thermal conduction heating (TCH) in the same borehole.
  • ERH allows superior power input to the subsurface, while TCH can generate temperatures as high as 400 degrees Celsius in soil.
  • "Combining these robust technologies allows us to treat contaminants such as PFAS, sometimes called 'forever chemicals,' at deep, complex sites," stated Gorm Heron, TRS' Chief Technology Officer.
  • "Congratulations to our research and development team on receiving a patent for our HybridHeater services," said Brett Trowbridge, CEO of TRS.

EnviroForensics' Thermal Remediation Cleans Up Environmental Contamination in Just 120 days

Retrieved on: 
Tuesday, February 5, 2019
Water, Geotechnical engineering, Hydraulic engineering, Liquid water, Lithosphere, Groundwater, Environmental remediation, Electrical resistance heating

In four months, EnviroForensics has successfully remediated contamination at the old Family Pride Cleaners, 600 N. Main Street, by using thermal remediation.

Key Points: 
  • In four months, EnviroForensics has successfully remediated contamination at the old Family Pride Cleaners, 600 N. Main Street, by using thermal remediation.
  • More traditional cleanup techniques can take between five and seven years to complete but using an innovative thermal remediation technology to heat the soil and groundwater beneath the former dry cleaner, levels of contamination in the treatment area were effectively eliminated in just 120 days.
  • The property has a long commercial history, including being the site of a beverage manufacturer in 1921.
  • A dry cleaner operated at the property between 1961 and 2012, after which time the resulting contamination had rendered the site uninhabitable.