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In-Situ Thermal Treatment of Trichloroethylene (TCE) Contamination in Bonheiden

Approximately 250 m³ of soil contaminated with trichloroethylene (TCE) were successfully remediated using In-Situ Thermal Desorption, achieving concentrations below 1 ppm within 25 days of heating and supporting the redevelopment of the site for housing.

SITE DESCRIPTION

       Treated Volume

250 m³ of contaminated soil

          Thermal technology

   In-Situ Treatment 

       Main contaminant

TCE

        Site challenges

Achieving stringent treatment targets of less than 1 ppm TCE 

        Project Timeline

2022 




SOLUTION

          Treatment Method

  In-Situ Thermal Desorption

          Treatment program

  Installation of 32 Gas Smart Burners fueled by propane, u se of an activated carbon tank

         Contaminated Vapors                          Management

Exhaust gases were monitored throughout the treatment and managed using an activated carbon filtration system.

       Process control

 Treatment performance was monitored using six temperature probe wells, three pressure monitoring points, and continuous gas measurements at the exhaust vent.



RESULTS

✅          Successfully treated 250 m³ (425 tonnes) of contaminated                    soil.

✅           Achieved the remediation target of less than 1 ppm TCE                        across the entire treatment area

✅         Emission standards were respected throughout the                                remediation campaign




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