CAPTAZIONE SOSTENIBILE DELLE ACQUE SOTTERRANEE IN UN ACQUIFERO NATURALMENTE CONTAMINATO DA ARSENICO: IL CASO DELL’AREA VULCANICA DEL CIMINO-VICO (ITALIA CENTRALE) — IJEGE
 
 
You are here: Focus and scope Issues from 2005 to 2017 IJEGE 13 IJEGE 13 - Volume 01 CAPTAZIONE SOSTENIBILE DELLE ACQUE SOTTERRANEE IN UN ACQUIFERO NATURALMENTE CONTAMINATO DA ARSENICO: IL CASO DELL’AREA VULCANICA DEL CIMINO-VICO (ITALIA CENTRALE)
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SUSTAINABLE GROUNDWATER DEVELOPMENT IN A NATURALLY ARSENIC-CONTAMINATED AQUIFER: THE CASE OF THE CIMINO-VICO VOLCANIC AREA (CENTRAL ITALY)



Abstract:
This study concerns the occurrence of arsenic in groundwater of the Cimino-Vico volcanic area (central Italy), widely used for drinking water supply and irrigation. The purpose is to provide a hydrogeological support for re-addressing the groundwater resource management in order to minimize the presence of the carcinogenic element in tapped waters. The Cimino-Vico volcanic area constitutes a complex hydrogeological system including several perched aquifers and a continuous basal aquifer in the volcanites, in some areas also influenced by deep-rising thermal waters. The occurrence of arsenic in groundwater is connected to the length of circuits in the volcanic rocks and, mainly, to the active hydrothermal system. The published and unpublished data of the arsenic content in groundwater of the basal aquifer were processed to obtain a reviewed map of its distribution, using geostatistical techniques. Results were compared with the present distribution of withdrawal supplying drinking water. The comparison highlights that the present management of groundwater resources does not follow a sustainable approach, with higher rate of withdrawal in areas with arsenic concentration exceeding 10 µg/L, and, vice versa, low rate in areas with lower concentration of the contaminant. The case study highlights that the future options for promoting sustainable water management in a naturally contaminated area are strongly conditioned by the knowledge of the hydrogeological environment. From this knowledge some alternative and/or integrative possibilities to the treatment solutions arise.

Authors:
Antonella Baiocchi - Università degli Studi della Tuscia - Dipartimento di Scienze Ecologiche e Biologiche - Largo Università - 01100 Viterbo, Italy
Attilio Coletta - Università degli Studi della Tuscia - Dipartimento di Scienze e Tecnologie per l’Agricoltura, le Foreste, la Natura e l’Energia - Largo Università - 01100 Viterbo, Italy
Luca Espositi - Università degli Studi della Tuscia - Dipartimento di Scienze Ecologiche e Biologiche - Largo Università - 01100 Viterbo, Italy
Francesca Lotti - Università degli Studi della Tuscia - Dipartimento di Scienze Ecologiche e Biologiche - Largo Università - 01100 Viterbo, Italy
Vincenzo Piscopo - Università degli Studi della Tuscia - Dipartimento di Scienze Ecologiche e Biologiche - Largo Università - 01100 Viterbo, Italy
Keywords
arsenic, volcanic aquifer, groundwater sustainability, geostatistical analysis
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