DEMO Site 1: Lavrion Technological & Cultural Park (LTCP), Lavrion, Greece
LTCP is located at the coastal area of Lavrion, Attica, within the wider area of Athens. The case study combines all typical Mediterranean water problems (i.e. seawater intrusion, water scarcity, karst aquifers, irrigation etc.) and MAR application is envisaged to combat all those. The site offers a typical hydrogeological setting for a Mediterranean coastal aquifer system (containing both alluvial and karstified aquifer layers), supporting both irrigation as well as water supply demands of the area. The entire aquifer system suffers from: (i) water shortage resulting from both anthropogenic activities (overexploitation) and natural conditions (decreasing precipitation trends due to climate change), as well as (ii) contamination due to the intrusion of seawater. The pilot site involves the employment of infiltration basins, which will be using waters of impaired quality as a recharge source, hence acting as a Soil-Aquifer-Treatment (SAT) system. This system is complemented by new technological developments, which will be providing continuous monitoring of the quantitative and qualitative characteristics of infiltrating groundwater through all hydrologic zones (surface, unsaturated and saturated zone). This will be achieved through the adaptation and installation of an integrated system of prototype sensors installed on-site offering a continuous monitoring and evaluation of the performance of the SAT system.
An integrated approach of the performance evaluation of any operating SAT system should aim at simultaneous monitoring of all hydrologic zones, proving the sustainability of all involved water quality treatment processes within the unsaturated and saturated zone. The pilot site will also provide the development of a prototype system of Time Domain Reflectometry (TDR) sensors in order to achieve continuous quantitative monitoring of the unsaturated zone through the entire soil column down to significant depths below the SAT basin. This will be complemented by Frequency Domain Reflectometry methods offered by UFZ (Partner 13), providing a higher resolution of vertical soil moisture distribution on a multi-level non-stop basis. The combination of these techniques will offer continuous monitoring of infiltration rates and possible mechanical clogging effects. The qualitative monitoring of the unsaturated zone will be achieved by installation of appropriate pore-water samplers within a multi-level basis, ensuring repeatability of sampling of infiltrating water of impaired quality. Lastly, prototype water multiparameter sensors will be developed for the qualitative and quantitative assessment of the Lavrion multi-aquifer system. This will continuously monitor the performance of (i) the alluvial aquifer and its potential for additional water treatment as well as (ii) the effects of the SAT system for counter-measuring seawater intrusion in the area of Lavrion.
Aquifer Recharge as a
Solution to Water Scarcity
An EU FP7 Project
Coordination & Contact:
Prof. Dr. Christoph Schüth
Darmstadt Technical University
Institute of Applied Geosciences
The MARSOL project receives funding from the European Union's Seventh Framework Programme for Research, Technological Development and Demonstration under grant agreement no 619120.
This project website reflects only the authors' views and the European Union is not liable for any use that may be made of the information contained therein.