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Evaluation of MNA in A Chlorinated Solvents-Contaminated Aquifer Using Reactive Transport Modeling Coupled with Isotopic Fractionation Analysis

1
Civil and Environmental Engineering Department (DICA), Politecnico di Milano, P.zza L. da Vinci 32, 20133 Milano, Italy
2
Laboratoire Chimie Environment—UMR 7376, Aix-Marseille Université-CNRS, 3 Place Victor Hugo—Case 29, CEDEX 3, 13331 Marseille, France
*
Author to whom correspondence should be addressed.
Academic Editors: Helen K. French and Carlos Duque
Water 2021, 13(21), 2945; https://doi.org/10.3390/w13212945
Received: 22 July 2021 / Revised: 24 September 2021 / Accepted: 2 October 2021 / Published: 20 October 2021
(This article belongs to the Special Issue Modelling Contaminant Transport and Natural Groundwater Quality)
Groundwater contamination by chlorinated hydrocarbons is a worldwide problem that poses important challenges in remediation processes. In Italy, the Legislative Decree 152/06 defines the water quality limits to be obtained during the cleanup process. In situ bioremediation techniques are becoming increasingly important due to their affordability and, under the right conditions, because they can be more effective than conventional methodologies. In the initial feasibility study phase, the numerical modeling supports the reliability of each technique. Two different codes, BIOCHLOR and PHREEQC were discussed and compared assuming different field conditions. Isotopic Fractionation-Reactive Transport Models were then developed in one synthetic and one simple field case. From the results, the two codes were in agreement and also able to demonstrate the Monitored Natural Attenuation processes occurring at the dismissed site located in Italy. Finally, the PHREEQC model was used to forecast the remediation time frame by MNA, hypothesizing a complete source cleanup: a remediation time frame of about 10–11 years was achieved by means of natural attenuation processes. View Full-Text
Keywords: reactive transport model; compound-specific stable isotope analysis; chlorinated hydrocarbons; PHREEQC; BIOCHLOR; PEST; monitored natural attenuation reactive transport model; compound-specific stable isotope analysis; chlorinated hydrocarbons; PHREEQC; BIOCHLOR; PEST; monitored natural attenuation
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MDPI and ACS Style

Antelmi, M.; Mazzon, P.; Höhener, P.; Marchesi, M.; Alberti, L. Evaluation of MNA in A Chlorinated Solvents-Contaminated Aquifer Using Reactive Transport Modeling Coupled with Isotopic Fractionation Analysis. Water 2021, 13, 2945. https://doi.org/10.3390/w13212945

AMA Style

Antelmi M, Mazzon P, Höhener P, Marchesi M, Alberti L. Evaluation of MNA in A Chlorinated Solvents-Contaminated Aquifer Using Reactive Transport Modeling Coupled with Isotopic Fractionation Analysis. Water. 2021; 13(21):2945. https://doi.org/10.3390/w13212945

Chicago/Turabian Style

Antelmi, Matteo, Pietro Mazzon, Patrick Höhener, Massimo Marchesi, and Luca Alberti. 2021. "Evaluation of MNA in A Chlorinated Solvents-Contaminated Aquifer Using Reactive Transport Modeling Coupled with Isotopic Fractionation Analysis" Water 13, no. 21: 2945. https://doi.org/10.3390/w13212945

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