This work deals with a groundwater pollution event from a Municipal Solid Waste (MSW) landfill, at present closed and subjected to the post-operative managing since 2003. The study area is located in the alluvial plain of southern Lombardy region (North Italy), and the landfill is placed on a Holocene alluvial terrace produced by subsequent depositions and erosions phases of the Lambro River (Fig 1). In 2014, intense rainfalls (up to 1400 mm/year compared to 600 mm/year on average) greatly contributed to increase the leachate level up to overflow the land surface around the landfill. The consequent percolation through the soil induced a deterioration of the groundwater quality. The work aimed to a) define the conceptual model both of the aquifer system and the pollution; b) identify the consequences of the leachate infiltration on groundwater c) understand if a complete natural attenuation (NA) was achieved. To this end, a hydrogeological and a hydrochemical characterization was obtained using a standard approach coupled to hierarchical cluster analysis (HCA) and numerical groundwater flow modeling

Stefania, G., Bonomi, T., Zanotti, C., Rotiroti, M., Sartirana, D., Di Martino, G., et al. (2019). Hydrogeological characterization of a closed MSW landfill using multivariate statistical analysis and groundwater numerical modelling. In L. Alberti, T. Bonomi, M. Masetti (a cura di), Flowpath 2019, National Meeting on Hydrogeology - Conference Proceedings (pp. 194-196). Ledizioni.

Hydrogeological characterization of a closed MSW landfill using multivariate statistical analysis and groundwater numerical modelling

Stefania, GA
Primo
;
Bonomi, T
Secondo
;
Zanotti, C;Rotiroti, M;Sartirana, D;Fumagalli, L
Ultimo
2019

Abstract

This work deals with a groundwater pollution event from a Municipal Solid Waste (MSW) landfill, at present closed and subjected to the post-operative managing since 2003. The study area is located in the alluvial plain of southern Lombardy region (North Italy), and the landfill is placed on a Holocene alluvial terrace produced by subsequent depositions and erosions phases of the Lambro River (Fig 1). In 2014, intense rainfalls (up to 1400 mm/year compared to 600 mm/year on average) greatly contributed to increase the leachate level up to overflow the land surface around the landfill. The consequent percolation through the soil induced a deterioration of the groundwater quality. The work aimed to a) define the conceptual model both of the aquifer system and the pollution; b) identify the consequences of the leachate infiltration on groundwater c) understand if a complete natural attenuation (NA) was achieved. To this end, a hydrogeological and a hydrochemical characterization was obtained using a standard approach coupled to hierarchical cluster analysis (HCA) and numerical groundwater flow modeling
Capitolo o saggio
leachate plume, numerical model, groundwater pollution
English
Flowpath 2019, National Meeting on Hydrogeology - Conference Proceedings
978-88-5526-012-1
Stefania, G., Bonomi, T., Zanotti, C., Rotiroti, M., Sartirana, D., Di Martino, G., et al. (2019). Hydrogeological characterization of a closed MSW landfill using multivariate statistical analysis and groundwater numerical modelling. In L. Alberti, T. Bonomi, M. Masetti (a cura di), Flowpath 2019, National Meeting on Hydrogeology - Conference Proceedings (pp. 194-196). Ledizioni.
Stefania, G; Bonomi, T; Zanotti, C; Rotiroti, M; Sartirana, D; Di Martino, G; Perosa, A; Valentini, P; Fumagalli, L
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/234076
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