Summary
Location: Brussels, BE
Geology: Silt with gravel layers
Pollutant(s): GW with TPH up to 125 mg/L
Reaction: Desorption + ISCO
Reagent(s): Petrocleanze (as surfactante) + RegenOX (as oxidant)
Application type: Grid application
Surface/length: 40 m2
Number of points: 3
Depth interval: 3,0 – 6,0 m-bgl
Dosage: average 450 l/m
Context
Within the framework of a soil remediation project of a automotive garage contaminated with hydrocarbons in the soil and the underground water, Injectis was called to find a fast and effective solution to treat the site.
Indeed, the pollution is in a silt with a low permeability, the heaviest fractions of TPH are not very mobile in water because they are strongly bound to the soil particles, considering the high concentrations of organic matter. Moreover, it is not possible to excavate the area, nor to stop the activity.
Reaction
Reagents
Particularity
The geology of the site presenting gravelly layers, our specific Gravel SPIN® Injection Technology machine had to be used to allow the injection in these layers more difficult to access for our traditional SPIN® Injection Technology machines.
