Students who have achieved the course objectives will be able to: - recognize the presence of aquifers, aquitards, and aquicludes in the subsurface; - reconstruct the groundwater flow in porous (saturated and unsaturated), fissured, and karst media; - parameterize the behavior of geological media through laboratory and on-site testing - understand groundwater abstraction structures (wells and springs); - understand the status of groundwater in coastal or deep-water areas; - understand methods for estimating the hydrological balance; - recognize the natural chemistry of groundwater; - assess the transport of point pollutants; - identify the vulnerability of aquifers to pollution; - have a general understanding of remediation systems for contaminated sites.
Course Prerequisites
The course assumes a basic knowledge of chemical-physical processes related to groundwater hydrology.
Teaching Methods
The lectures will consist of theorical seminars, practical exercises, and presentation of case studies.
Assessment Methods
Oral exam to assess: - knowledge of the technical content of the course; - ability to approach and solve simple problems (including those covered during the course).
Texts
Lecture notes and slides will be made available. The recommended textbooks in Italian language are: Beretta G.P. (1992) – Idrogeologia per il disinquinamento delle acque sotterranee. Pitagora Editrice Bologna Canuti P., Crescenti U., Francani V. (2008) Geologia applicata all’ambiente. Casa Editrice Ambrosiana Celico P. (1986) -Prospezioni idrogeologiche. Liguori Editore, Napoli Civita M. (2005) – Idrogeologia applicata e ambientale. Casa Editrice Ambrosiana
Contents
Basic hydrogeological knowledge: water cycle, hydrogeological properties of rocks, confined and unconfined aquifers, Bernoulli's principle, Darcy's law, porous, fissured, and karst aquifers. Hydrogeological parameters: hydraulic conductivity, transmissivity, storage coefficient, and leakage factor. Isopiezometric maps. Laboratory and in-situ permeability tests (Lefranc, Slug test). Water inflow to wells under steady-state and transient conditions. Pumping tests in confined, semi-confined, and unconfined aquifers. Water wells. Step pumping test. Specific well flow and its relationship to hydrogeological parameters. Saline intrusion in coastal areas. Water flow in unsaturated media. Water circulation in rock masses. Geostructural surveys. Determination of hydraulic conductivity in rock masses Water circulation in karst systems. Types of water springs. Flow measurement. Flow hydrograph. Depletion coefficient (Maillet and Tison methods). Hydrodynamic and hydrochemical responses of springs during recharge (prevalent substitution, piston effect, and homogenization). Use of hydrochemistry and isotopic hydrology in hydrogeology. Water quality and main anions and cations. Introduction to organic chemistry. Methods for general representing of water quality. Sources of water contamination. Laws overview on water use. Pollutant transport in soil and groundwater Tracers for groundwater studies Aquifer Vulnerability to Pollution (CNR-GNDCI, Drastic, Sintacs) Methods for Well and Springs Protection. Characterization of Contaminated Sites Remediation of Contaminated Sites.