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Projects / Programmes source: ARIS

Study of pollutant transport dynamics with artificial tracers in the porous aquifer of Ljubljansko polje

Research activity

Code Science Field Subfield
1.06.00  Natural sciences and mathematics  Geology   

Code Science Field
P470  Natural sciences and mathematics  Hydrogeology, geographical and geological engineering 
T270  Technological sciences  Environmental technology, pollution control 
Keywords
tracer experiments, groundwater flow dynamics, solute transport, groundwater quality, porous aquifer, Ljubljansko polje
Evaluation (rules)
source: COBISS
Researchers (12)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  23534  MSc Primož Auersperger  Chemistry  Researcher  2004 - 2007  78 
2.  13491  MSc Branka Bračič Železnik  Geology  Researcher  2004 - 2007  227 
3.  15249  PhD Barbara Čenčur Curk  Geology  Head  2004 - 2007  509 
4.  17927  Marjeta Goršič    Technical associate  2004 - 2006  12 
5.  10889  PhD Brigita Jamnik  Hydrology  Researcher  2004 - 2007  316 
6.  21680  PhD Vojkan Jovičić  Civil engineering  Researcher  2004 - 2007  717 
7.  20117  MSc Brane Merhar  Geology  Researcher  2004 - 2007  769 
8.  21092  Melhior Pregl  Geology  Researcher  2004 - 2007  762 
9.  17223  Ivan Supovec    Researcher  2004  543 
10.  24093  Martin Tilen Tancar  Geology  Researcher  2004  349 
11.  15886  PhD Goran Vižintin  Mining and geotechnology  Junior researcher  2004 - 2005  485 
12.  18803  PhD Vladimir Vukadin  Civil engineering  Researcher  2004 - 2007  727 
Organisations (2)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0210  Institute for Mining, Geotechnology and the Environment  Ljubljana  5051576000  4,496 
2.  6484  JAVNO PODJETJE VODOVOD KANALIZACIJA SNAGA d.o.o. (Slovene)  Ljubljana  5046688  871 
Abstract
Human activities on the Ljubljansko polje area threaten groundwater quality. A numerical groundwater flow model was established for the wider area of the Ljubljansko polje aquifer. A lack of experimental data on solute transport leads to unreliability of the transport model and it is predictions of pollution scenarios. The transport model needs to calculate reliable scenarios of pollution dispersion, which can be achieved only with the application of real transport parameters. These could be provided from tracer experiments in the Ljubljansko polje aquifer. In the frame of the research project a multi-tracer experiment in the area of the Hrastje waterworks and a small tracer experiment in the area of Jarški Brod waterworks will be carried out. Tracer test design considers differences between pollutant spreading in unsaturated and saturated zones of the aquifer. Therefore, the tracer injection is planned as spreading on the surface (injection to the unsaturated zone), as well as injecting directly into the saturated zone through observation wells. Structure of the Ljubljansko polje aquifer is very complex and vertical stratified. Flow direction is very unpredictable because of a presence of conglomerate layers. The latter can play a double role: they could be karstified and very permeable on one hand or compact and unpermeable on the other hand. Therefore some geophysical measurements (borehole neutron and density probe) will be performed. Results of the geophysical measurements and multi-tracer experiment will improve the flow and transport model. All together, this will enable better knowledge of the hydrodynamic conditions in the Ljubljansko polje aquifer, which will yield more effective measures for waterwork protection. Consistent implementation of these measures will improve the groundwater quality in the waterworks.
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