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The list of international projects SAS

Institute of Geotechnics SAS

Innovative remediation strategy for toxic mercury species in the area of former Pavlodar chemical plant

Inovatívna stratégia sanácie toxických druhov ortuti v areáli bývalého chemického závodu Pavlodar

Duration: 15.4.2022 - 1.11.2024
Program: Other
Project leader: RNDr. Baláž Matej PhD.
Annotation:The project is expected to develop an innovative strategy for remediation of the area of the former Pavlodar (Kazakhstan) chemical plant from mercury toxic forms using data on occurrence of mercury species (including methylmercury, mobile and bioavailable forms). These forms, determined by modern physicochemical and analytical methods, will help to assess the Hg mobility, toxicity and the ability to methylation at this location and will make it possible to propose a rational approach to remediate the territory. In addition, it is planning within the project to develop and offer for commercial use at least one material/product as an in situ amendments to stabilize/immobilize mercury in soils and/or to remove it from water.

Zero-waste valorisation of feldspathic ores: Green application and sustainable sourcing of strategic raw materials.

Bezodpadové zhodnotenie živcových surovín: Zelené aplikácie a udržateľné získavanie strategických nerastných surovín.

Duration: 15.4.2022 - 14.4.2025
Program: ERANET
Project leader: Mgr. Achimovičová Marcela PhD.
Annotation:Feldspathic ores containing mainly K-Feldspar (KAlSi3O8) will be valorised by applying several hydro- and pyrometallurgical processes at which KCl, Al2O3, and SiO2 will primarily be produced without generating any solid waste. Objective is to provide new resources for potash and alumina. Targets are to produce fertilizer-grade KCl, high purity Al2O3, synthetic SiO2, Ca-silicate, and SiC from one ore and to sequester CO2 on the same ore. Although there are many studies for K and Al2O3 recovery from feldspars and clays, there are no notable commercial attempt to date. Unlike the other KCl and Al2O3 production methods suggested in the literature, manufacturing KCl, Al2O3, SiO2, Ca-silicate and SiC from the same ore without generating any waste is the novelty of this project. Thus, innovative aspect of the project is that feldspathic ores will be processed as a source of high value-added materials for the first time and with zero-waste approach, thus increasing the economic value of the proposed process. Also, CO2 sequestration capability of the feldsphatic ores will also be verified to enhance the economic importance those types of resources. For increased raw materials efficiency, a novel, hybrid and zero-waste processing method will be put forward. This will be established by exploiting the ores, other than bauxite and natural potash ores, and by applying environmentally sensitive production processes. The project will unlock substantial volume of various raw materials from deposits that cannot be economically or environmentally exploited within or outside the EU through enabling the better efficiency of exploitation of raw materials’ resources and increasing the range and yields of recovered raw materials; and push Europe to the forefront in the area of raw materials processing technologies and increase availability of recovered raw material and create added value products through reducing the amounts of industrial tailings to be disposed or landfilled.

Supported Co-Pd catalysts for CO hydrogenation synthesized by impregnation and mechanical activation or by mechanical alloying

Katalyzátory na báze Co-Pd pre hydrogenáciu CO pripravených impregnáciou a mechanickou aktiváciou/legovaním

Duration: 1.1.2023 - 31.12.2024
Program: Mobility
Project leader: RNDr. Fabián Martin PhD.
Annotation:The project aims to enrich and refine the knowledge about the type, role and significance of various factors determining the structure and properties of supported bimetallic Co-Pd catalysts for CO hydrogenation like supported metal(s) dispersion, degree of metal reduction, surface structure of metal particles, extent of the metal phase components influence on the type and properties of adsorbed atoms and compounds, role of support composition and surface properties. Enrichment and clearance of details of the catalytic CO hydrogenation mechanism could be obtained. The main hypotheses for the study are: - The selectivity and distribution of reaction products is determined by the reduction and dispersion of the metal, as it is established that the main active phase are metallic nanoparticles where essential part of their surface consists of totally reduced cobalt atoms (Co0 ) but some results show necessity of Co0 /Con+ couples. - The type of CO adsorption, formation of various CO species will depend on the surface composition of the studied material - namely the presence/ratio of metal ions and atoms of the catalytically active components. - Mechanochemical synthesis of catalysts for CO hydrogenation could be profitable for simultaneous desirable modification of support surface properties

Design of the N-bearing surface layer of silica hybrid organic-inorganic particles for their application in industrial wastewater treatment

Návrh N-nosnej povrchovej vrstvy oxidu kremičitého hybridných organicko-anorganických častíc pre ich aplikáciu pri čistení priemyselných odpadových vôd

Duration: 1.10.2023 - 31.7.2024
Program: International Visegrad Fund (IVF)
Project leader: Melnyk Inna PhD.
Annotation:The development of adsorbents for water purification remains an urgent task. Therefore the main goal of the project is to develop novel silica-based materials with desired surface functionalities. The research objectives of the project are: a) optimization of one-pot synthesis of hybrid organo-inorganic particles with different N-containing functional groups: -NH2, =NH, -NHNH2, -NHNHNH2, -NR3 and their protonated forms; b) analysis of the structure-property relationship of the obtained materials, with an adjustment of the synthesis to increase the availability of functional groups and improve structural properties; c) sorption tests to remove As, Sb ions from aqueous solutions, determination of sorption parameters (pH, contact time, sorption capacity, sorbent regeneration) in model solutions and real wastewater; d) dissemination of the findings in articles and conference presentations.

Technology of green synthesis of structurally modified metal sulfide nanocomposites with high photocatalytic activity and antibacterial properties

Technológia zelenej syntézy štruktúrne modifikovaných kovových sulfidových nanokompozitov s vysokou fotokatalytickou aktivitou a antibakteriálnymi vlastnosťami

Duration: 1.8.2022 - 31.12.2024
Program: Other
Project leader: RNDr. Baláž Matej PhD.
Annotation:As part of the project, various binary nanosulfides of transition metals (Zn, Pb, Sn, Mo, Ag, Ni, Cd) and their composites with a potential mixture in photocatatalytic wastewater treatment will be mechanochemically synthesized. The synthesis will be performed by grinding the octane of the respective metal and the eggshell membrane or thiourea as a source of sulfur. Finally, the photocatalytic and antibacterial activity of the products will be tested.

The total number of projects: 5