Setting appropriate technologies in the remediation of brownfield contaminated with hydrocarbons: The case study of the ex-Gasometer in Bari, Italy

The contribution shows a case study concerning the remediation of a disused industrial plant (Ex- Gasometer) in the central area of the city of Bari (Apulia Region, Southern Italy). The Ex-Gasometer is an area declared “at risk” by local Authorities because of it is one of the most complex, extensive (about 20,000 m2) and contaminated brownfields situated near a high population density urban area. The characterization highlighted high concentrations of heavy metals, organic pollutants and above all hydrocarbons both in groundwater and in soil. The contribution recognized and analyzed the main aspects that allowed the selection and the implementation of the most suitable remediation strategies for soils and groundwater decontamination. Furthermore, details of movable tensile structure as well as sampling procedures related to the monitoring of excavation fronts have been accurately described. In this way, the case study addressed is an example of how remediation plays an important role in the context of circular economy.