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Environmental Remediation Services…


 

Electrical Thermal Dynamic Stripping…

 

Gilbride Electric Has Unique Experience and Expertise in the industry with Electrical Resistance Heating (ERH)

 

Having worked with such companies as TerraTherm and McMillan McGee Corp, Gilbride Electric offers Electrical Resistance Heating (ERH). ERH has been widely applied and proven effective for free product recovery and enhanced vapor extraction at sites with volatile contaminants such as VOCs, CVOCs, and NAPLs, and is applied at low and moderate temperatures. The below is an example of this process:

 

 

What is Electrical Resistance Heating (ERH)?

 

When electric current is passed through the soil, the resistance it encounters causes the soil and fluids to heat up. The current flows from one electrode to another, primarily through the soil water. Once the water boils off, electrical conductivity becomes negligible and heating ceases; thus, water is added at each electrode to keep them from drying out. Heat-up with ERH is limited to the boiling point of water.

 

ERH Process

Electrodes are installed in wells throughout the
contaminated soil and groundwater volume. The
electrode array is connected to a Power Delivery
System unit that uses standard, readily available
three-phase power from the grid. The process
begins by passing current between electrodes
causing the soil temperature to rise. This
increased temperature results in the volatilization
of contaminant compounds into the vapor phase
for removal with vapor extraction techniques.

 

Comprehensive computer controls are used to
regulate and optimize the thermal response of
the target formation.

 

 

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