First survey on the occurrence of chlorinated solvents in groundwater of eastern sector of Rome

Vigna, Francesco La; Sbarbati, Chiara; Bonfà, Isidoro; Martelli, Simona; Ticconi, Lucilla; Aleotti, L.; Covarelli, A.; Petitta, Marco

doi:10.1007/s12210-019-00790-z

Cited by 11 publications

(5 citation statements)

References 17 publications

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“…However, the highest concentrations of DCE, TCE, and PCE were detected in MW-14. This can be explained by their high mobility (Table S5), allowing them to disperse over large spatial areas, in accordance with the literature [32]. Moreover, this observation could signify a shift in the industrial spill of solvents or an enhanced remediation of chlorinated solvents in the spill area, possibly due to the higher presence of organic matter and TSSs.…”

Section: Groundwater Characterizationsupporting

confidence: 85%

Novel Oxidation Strategies for the In Situ Remediation of Chlorinated Solvents from Groundwater—A Bench-Scale Study

Cano-López,

Fernandez-Rojo,

Pérez-Estrada

et al. 2024

Water

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Industrial chlorinated solvents continue to be among the most significant issues in groundwater (GW) pollution worldwide. This study assesses the effectiveness of eight novel oxidation treatments, including persulfate (PS), ferrous sulfate, sulfidated nano-zero valent iron (S-nZVI), and potassium ferrate, along with their combinations, for the potential in situ remediation of GW polluted with chlorinated solvents (1,2-dichloroethylene, trichloroethylene, and tetrachloroethylene). Our bench-scale results reveal that the combined addition of PS and S-nZVI can effectively eliminate trichloroethylene (10 µg/L), achieving removal rates of up to 80% and 92% within 1 h, respectively, when using synthetic GW. In the case of real GW, this combination achieved removal rates of 69, 99, and 92% for cis-1,2-dichloroethylene, trichloroethylene, and tetrachloroethylene, respectively, within 24 h. Therefore, this proposed remediation solution resulted in a significant reduction in the environmental risk quotient, shifting it from a high-risk (1.1) to a low-risk (0.2) scenario. Furthermore, the absence of transformation products, such as vinyl chloride, suggests the suitability of employing this solution for the in situ remediation of GW polluted with chlorinated solvents.

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Section: Groundwater Characterizationsupporting

confidence: 85%

Novel Oxidation Strategies for the In Situ Remediation of Chlorinated Solvents from Groundwater—A Bench-Scale Study

Cano-López,

Fernandez-Rojo,

Pérez-Estrada

et al. 2024

Water

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“…152, 2006). However, it was early clear that member states had local critical situations hampering the respect of the objectives due to the occurrence of anthropogenic diffuse contaminated areas, particularly in urban settings (Busico et al, 2018;Alamdar et al, 2019;La Vigna et al, 2019;Pereira, 2019). Such "diffuse-like" contamination originated from former unknown PSs (i.e., MPSs) is totally neglected in existing European legislation, and only at regional scale some legislations exist addressing this issue (Regione Lombardia, 2017).…”

Section: Introductionmentioning

confidence: 99%

Multi-Methodological Integrated Approach for the Assessment of Diffuse Pollution Background Levels (DPBLs) in Functional Urban Areas: The PCE Case in Milano NW Sector

Colombo

Alberti

Azzellino

et al. 2020

Front. Environ. Sci.

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The Milano Metropolitan Area [named FUA (functional urban area)] has a history of heavy industrialization causing a large portion of area being affected by significant diffuse contaminations of soil and groundwater. Among the various contaminants, chlorinated solvents (e.g., tetrachloroethylene and trichloroethylene) are the most used in industrial processes and represent the major cause of groundwater pollution within the FUA. The background diffuse contamination generated by these pollutants is so persistent and widely spread that makes it extremely challenging to identify the sources responsible for their release. Such background contamination originates from the overlapping of both known sources (point sources), associated to specific high release of contamination, and unknown small sources (multiple point sources), clustered within a large area, whose release is low but persistent. The aim of this article is to present the methodology, developed within the framework of the AMIIGA Project (Interreg Central Europe Grant N • CE32), which combines multivariate statistical analysis and groundwater numerical modeling in order to separate the point sources contribution from the background diffuse contamination, and supporting public authorities in the management of groundwater remediation. A methodological workflow is proposed guiding local and regional institutions to use the methodology (i.e., exploratory analysis of big dataset, simulation of groundwater flow and transport, multivariate and geostatistical analysis) to assess diffuse pollution background levels in large urbanized areas.

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“…Chlorinated (aliphatic) hydrocarbons (CHCs) such as the common solvents tetrachloroethene (PCE), trichloroethene (TCE) and 1,1,1-trichloroethane (TCA) are among the most common chemicals that pollute groundwaters worldwide (Clement et al, 2000;Witt et al, 2002;Lenczewski et al, 2003;Arianna et al, 2019;Kawabe and Komai, 2019;La Vigna et al, 2019). They are used as industrial solvents for a broad range of applications in chemical synthesis, degreasing agents of metal parts, cleaning of electronic components, or textile dry-cleaning (Rivett et al, 1990), and are known or suspected to be carcinogenic or mutagenic agents for humans.…”

Section: Introductionmentioning

confidence: 99%

Dynamics of chlorinated aliphatic hydrocarbons in the Chalk aquifer of northern France

Walaszek

Cary²,

Billon³

et al. 2021

Science of The Total Environment

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First survey on the occurrence of chlorinated solvents in groundwater of eastern sector of Rome

Cited by 11 publications

References 17 publications

Novel Oxidation Strategies for the In Situ Remediation of Chlorinated Solvents from Groundwater—A Bench-Scale Study

Novel Oxidation Strategies for the In Situ Remediation of Chlorinated Solvents from Groundwater—A Bench-Scale Study

Multi-Methodological Integrated Approach for the Assessment of Diffuse Pollution Background Levels (DPBLs) in Functional Urban Areas: The PCE Case in Milano NW Sector

Dynamics of chlorinated aliphatic hydrocarbons in the Chalk aquifer of northern France

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