FAQ
Thermal remediation and ERH questions
Clear technical answers for consultants, site owners, and regulators evaluating Electrical Resistance Heating remediation.
What is thermal remediation?+
It is an in-situ method that heats soil and groundwater to mobilize contaminants, support extraction, and verify cleanup goals.
What is ERH?+
ERH means Electrical Resistance Heating. Current passes between subsurface electrodes and resistance generates heat in the treatment zone.
Which contaminants can be treated?+
The technology is evaluated for VOCs, CVOCs, BTEX, TPH, chlorobenzenes, vinyl chloride, and other volatile or semi-volatile compounds.
Can it be used below active buildings?+
Yes, with site-specific design, structural review, vapor control, electrical safety, and monitoring. Doxor has experience in occupied sites.
How deep can ERH go?+
It depends on geology, energy delivery, groundwater movement, drilling, and objectives. Doxor has documented heating with electrodes up to 31 m.
How long does it take?+
Schedule depends on mass, volume, target temperature, hydrogeology, and extraction performance. Documented projects use multi-month windows.