LNAPL Skimming Archives - Haemers Technologies

ANGLEUR – BELGIUM

Historical or accidental pollution, mainly heating oil tank leakage or leakage of service station petrol/diesel. Heating oil. Fuel: diesel, petrol Spills ranging from a few m3 to several tens of m3 near or under the storage tanks. Installation of small pumping units DS 500-6/125 or DS 100 – 5 linked to skimmers SKIM 2-25 or SKIM 4-25. Pollutant Hydrocarbons Nb of Wells / Depth Variable Pumping Unit DS 500-6/12 (ATEX) DS 100-5 (ATEX) Skimmers SKIM 2-25 SKIM 4-25 Location Angleur, Belgium

FEYZIN – FRANCE

Historical pollution in a petrochemical unit. Mainly hydrocarbons, BTEX, aromatic and aliphatic compounds Presence of a free phase ranging from a few centimetres to several tens of centimetres on a fairly extensive surface. Industrial zone near a river with strong level variations. Average depth of aquifer 12 m below ground level. 2.5 m groundwater variability, fast and induced by the level variations of the nearby river. Given the scope of pollution, installation of two pumping units DS 500-6D ATEX, equipped for pumping at a depth greater...

CATENOY – FRANCE

Historical pollution: leakage in tanks of a chemical plant. The product has a high viscosity (honey or semi liquid tar type) and crystallizes in cold weather. On a surface of a few acres, a floating layer of chemicals and hydrocarbons with a free phase thickness of up to 7 m originally. Agricultural zone Limestone (chalk) Average depth of aquifer 22 m below ground level Seasonal variability of aquifer between 2.5 and 3.0 m over the year ODSI’s solution was implemented after encountering many difficulties using other methods...

FLAWINNE – BELGIUM

Crack in the filling conduit of storage tanks. On a surface of a few acres, a diesel free phase of a few centimeters, with a migration of the free phase towards the nearby canal. Along a canal Fill, sand, silt, clay and rocks Average depth of aquifer 4.0 m below ground level Variability of aquifer +/-1 m Emergency response shortly after discovering the incident. Delivery and implementation of a pumping unit DS 500-12 accompanied by a 1m3 outdoor storage IBC. Placement of a floating dam on the canal...

GHENT – BELGIUM

Historical pollution. Leak in a set of diesel storage tanks protected by a concrete holding tank containing all storage tanks. On a surface equivalent to a football field, a free phase of diesel, a few centimeters to tens of centimeters thick, located under and outside the holding tank, on the side of the aquifer discharge. Along a sea access canal, with small level variations in the canal Sand Average depth of aquifer 2.3 m below ground level Seasonal variability of aquifer between 50 and 70...