In-situ enhanced desorption of petroleum hydrocarbons
Historical leakages at a former industrial site undergoing redevelopment resulted in hydrocarbon contamination impacting the soil and groundwater. The contamination was located under the footprint of the planned building, requiring remediation works to be completed prior to construction taking place.
REGENESIS’ PetroCleanze® was applied, rapidly desorbing the contamination bound to the soils in the heavily impacted ‘smear zone’ at the top of the groundwater, which was then physically extracted.
Without the use of PetroCleanze, the absorbed hydrocarbons would have been difficult to remove using only a physical abstraction system (pump and treat) and would have provided an ongoing secondary source of contamination into the groundwater (often seen on many sites as ‘rebounding’ concentrations in the source area once the pumps were switched off).