Chromium in Asopos Groundwater system: Remediation technologies and measures (LIFE+ CHARM)
The groundwater system of Asopos River presents high concentrations of hexavalent chromium [Cr(VI)] and as a result there is an increased public concern, since part of the groundwater is used for water abstraction for human consumption and most of it for irrigation purposes. One interesting issue related to the groundwater quality of the specific groundwater system is related to the possible increased natural levels of chromium in the water, which makes it a more difficult task to tackle, with respect to the determination of rational threshold values (TVs) and proposal of appropriate remediation technologies and measures.
We participated in the LIFE+ Environment Policy and Governance 2010: Chromium in Asopos Groundwater system: Remediation technologies and measures (CHARM). During this assignment our responisbilities include: a) the evaluation of geogenic Cr(VI) in Greek groundwater aquifers and in Asopos river basin, b) the design and implementation of a wide groundwater and soil sampling in Northern Greece and Asopos river basin, c) the evaluation of potential Cr(VI) anthropogenic sources in Asopos river basin and c) the preparation of deliverables.
Risk assessment of an uncontrolled waste landfill at Attica
The purpose of this assignment was to strengthen the NTUA research team to evaluate the environmental risk of a currently inactive uncontrolled dumpsite of Attica that used to operate by 2010’. The geological background of the area is a karstic limestone that naturally has a high water permeability that significantly increase the risk of groundwater contamination, that is mainly used for irrigation.
For the purposes of this assignment, site visits in the wider area were conducted, inhabitants and municipal employees were interviewed and an extensive soil and groundwater sampling were carried out in order to examine whether the dumpsite received not only domestic but industrial waste as well, but also if groundwater has been contaminated by leachate so far, taking into account the vulnerable geological background.
Environmental site assessment of a landfill in North Greece
The purpose of this assignment was to strengthen the NTUA research team to evaluate the environmental risk of one of the largest landfills in Greece.
During this assignment, site visits in the wider area of the landfill were conducted, employees were interviewed, and an extensive groundwater sampling were carried out in order to examine the environmental impacts of landfill to groundwater quality. In addition, the groundwater sampling protocol that was followed by then was reviewed, the laboratory methods used were assessed and the leachate treatment system was reviewed in order to further assess the environmental impacts of the landfill to the surface water quality as well.