Projects / Programmes source: ARIS


Research activity

Code Science Field Subfield
2.01.01  Engineering sciences and technologies  Civil engineering  Building materials 
1.06.07  Natural sciences and mathematics  Geology  Natural resources (mineral and energy raw materials, water) 

Code Science Field
2.01  Engineering and Technology  Civil engineering 
1.05  Natural Sciences  Earth and related Environmental sciences 
river sediments, remediation, clay masonry units, alkali activated materials, leaching
Evaluation (rules)
source: COBISS
Researchers (18)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  25790  PhD Mojca Božič  Chemical engineering  Researcher  2020 - 2023  218 
2.  52325  PhD Mark Češnovar  Civil engineering  Researcher  2020 - 2023  55 
3.  11292  PhD Vilma Ducman  Civil engineering  Head  2020 - 2023  500 
4.  11897  PhD Karmen Fifer Bizjak  Civil engineering  Researcher  2022 - 2023  290 
5.  39809  Ana Frankovič  Civil engineering  Researcher  2020 - 2022  28 
6.  25788  PhD Boštjan Genorio  Materials science and technology  Researcher  2020 - 2023  319 
7.  36645  PhD Boštjan Gregorc  Energy engineering  Researcher  2020 - 2023 
8.  30873  PhD Barbara Horvat  Materials science and technology  Researcher  2021  103 
9.  56270  Jernej Imperl  Chemistry  Researcher  2022 - 2023  34 
10.  23386  PhD Drago Kočar  Chemistry  Researcher  2020 - 2023  254 
11.  16429  PhD Mitja Kolar  Chemistry  Researcher  2020 - 2023  609 
12.  34599  PhD Gregor Marolt  Chemistry  Researcher  2020 - 2023  131 
13.  25599  PhD Alenka Mauko Pranjić  Geology  Researcher  2020 - 2023  318 
14.  38295  PhD Ana Robba  Chemistry  Researcher  2021 - 2023  40 
15.  35338  PhD Katja Traven  Civil engineering  Researcher  2020 - 2022  71 
16.  27508  PhD Janez Turk  Civil engineering  Researcher  2020 - 2021  214 
17.  56460  PhD Wolfgang Wisniewski  Civil engineering  Researcher  2022 - 2023  58 
18.  31990  PhD Lea Žibret  Civil engineering  Researcher  2022 - 2023  57 
Organisations (3)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0103  University of Ljubljana, Faculty of Chemistry and Chemical Technology  Ljubljana  1626990  23,351 
2.  1502  Slovenian National Building and Civil Engineering Institute  Ljubljana  5866324000  10,361 
3.  3317  Dravske elektrarne Maribor d.o.o. (Slovene)  Maribor  5044286  264 
Sedimentation affects the safety of hydropower plant dams, and reduces energy production, storage, discharge capacity and flood attenuation capabilities. It increases loads on the dam and gates, damages mechanical equipment and creates a wide range of environmental impacts. About 0.5% to 1.0% of the total volume of 6,800 km3 of water stored in reservoirs around the world is lost annually as a result of sedimentation. Without active management, the continual accumulation of sediments will gradually displace the storage volume in a reservoir, which will ultimately render the reservoirs useless for capturing and storing water. Additional environmental problem present sediment pollution with heavy metals, and the remediation of heavy metal contaminated sediments is crucial to river ecosystem protection. Slovenian Dravske Elektrarne Maribor d.o.o. (DEM), the company that operates eight hydropower plants on the Drava River, is facing sedimentation problems. Between 30,000 - 40,000 m3 of sediment, contaminated with heavy metals, is annually accumulated in the hydro reservoirs, which need to be appropriate handled. Because of the lack of space in the Drava valley for sludge deposition and new imposed regulations, there is an urgent need for new solutions in sediment management. Current treatment methods aiming to restore the normal function of contaminated sediment are similar to those used for soil and include physical, chemical and biological methods. Although much is known about technologies for the remediation of heavy metal contaminated soil, much less is known about sediment treatment. Another successful remediation method is solidification/stabilization, where heavy metal pollutants are physical encapsulated in a solid matrix. Encapsulation involves the mixing of the contaminated soils or sediments with other materials and producing building products such as geopolymers (alkali activated materials - AAMs), cement clinker, bricks, lightweight aggregates, concrete etc. The contaminated soil/sediment becomes immobile and thus prevents contamination of the surrounding materials. Although a lot of research all over the world was already conducted in applying marine and river sediments in brick and AAMs, the River Drava sediments were not examined as a raw material yet. But given its known composition and continuous availability, this material is perfect candidate as a major component for manufacturing of sustainable final products. The key objective of proposed Ready4use project is to (i) develop a new procedure for removal of heavy metals from River Drava sediment and (ii) develop new building materials (bricks and AAMs) by using River Drava sediment raw material. Partners in the project consortium (i.e. Slovenian National Building and Civil Engineering Institute, Faculty of Chemistry and Chemical technology, and company Dravske Elektrarne Maribor) have devised a systematic work-plan consisting of R&D activities that will fully encompass the entire development procedure of the novel sediment remediation process and construction materials production, from design to the actual production of the prototype. The main scientific contribution of the work will be in defining the most successful remediation processes of sediments by using new ecological friendly biosurfactants, and design of optimal mixtures for brick and AAM, where many parameters will need to be studied in order to define the most influential ones. These innovative processes and products will provide the knowledge, which will be applicable also to other waste holders worldwide. All researched technologies will be beside technical parameters, assessed also from environmental point of view by analysis of life cycle assessment (LCA), which will contribute to the interdisciplinarity of the Ready4use project.
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