Plot of 7000 m2 of land reclaimed from the sea with 4000 m3 of soils affected by hydrocarbons.
Groundwater at 2.5 m depth strongly impacted, presence of free phase.
Objective and limitations
Disposal from phase free and complianceobjectivesremediationrequiredby the administration, avoidingmobilizecondition a plotadjacentatframework temporary delimited to 12 months. Limitation from spaceatplot and of existence of point of spill at collector from waterstreated.
Methodology applied
Selective excavation and biopile treatment.
Pumping and water treatment and infiltration.
Hydraulic barrier to prevent plume movement to the adjacent plot.
Stages:
Biobattery treatability tests
Excavation and preparation of land for biopiles
Pilot tests in situ for adjustment of nutrients, water and pH of biopiles
Pumping, treatment and infiltration of groundwater
Hydraulic barrier by waterproofing
Soil replacement guaranteeing mechanical conditions according to the use of the plot.