Hydrocarbon spillage, as a result of a malicious event, caused contamination of soils up to about 2.5m from p.c. (heavy hydrocarbon concentrations up to 10,000 mg/kg). Based on the microbiological investigations conducted during the characterization phase, 3 pilot tests were conducted to treat soils using “in situ” Enhanced Bioremediation technologies.

Hydrocarbon spillage, as a result of a malicious event, caused contamination of an area of approx. 12,000 m2 in an agricultural context, involving both surface soils (0-1 m from w.p.) and deep soils (1-3 m from w.p.), with heavy hydrocarbon concentrations up to 10,000 mg/kg.

For deep soils in areas with less hydrocarbon concentration than 5,000 mg/kg, based on the characterization results, specific pilot tests were defined to test 3 different biological remediation strategies: 1) in-situ injection of sulfate-releasing mixtures (SBC) 2) in-situ injection of oxygen-releasing mixtures (ORC) 3) on-site treatment with ORC coupled with the addition of green composted soil improver (compost).