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HYDROGEOCHEMICAL MODEL SUPPORTING THE REMEDIATION STRATEGY OF A HIGHLY CONTAMINATED INDUSTRIAL SITE
Ciampi, P., C. Esposity, and M.P. Papini.
Water 11:1371(2019)

A hydrogeochemical geodatabase that integrates the management, representation, and analysis of heterogeneous data was pilot tested to select, design and optimize the remediation of residual DNAPL (1,2-DCE and VC) at a former industrial site in the Po alluvial plain in Italy. Geodatabase results showed contamination in very low-permeable layers within the saturated zone that acted as a slow-release source of contamination. A new remedial technology was designed and pilot tested that couples groundwater circulation wells with a reactor containing PHB for the continuous production of electron donor to stimulate in situ bioremediation. The system continuously removes chlorinated solvent constituents that are mobilized by the recirculation of water through the zones with low permeability. The geodatabase was effective at managing and releasing data during the different remediation phases but required a large amount of multi-sourced data to build a reliable and high-resolution conceptual model and design the remediation strategy. Results will be used to design a full-scale system. https://www.mdpi.com/2073-4441/11/7/1371/pdf



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