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The list of national projects SAS

Institute of Geotechnics SAS
A green approach to the direct synthesis of selected oxide and selenide mineral phases by high-energy milling
Ekologický spôsob prípravy vybraných minerálnych fáz na báze oxidov a selenidov vysoko-energetickým mletím
Program: VEGA
Project leader: Mgr. Achimovičová Marcela PhD.
Annotation:The non-conventional mechanochemical method will be used in the preparation of selected types of oxides and selenides, namely pyroxenes with the NaFeA2O6 chemical composition, where A = Si, Ge and selenospinels with the chemical composition AB2Se4, where A = Co, Ni, Cu and B = Co, Ni, Ti. Physico-chem. prop. of these materials can be used in practice as batteries. For the first time, the processes of mechanically induced nucleation from the early stages to the formation of the desired phases will be studied, providing information and clarification of the microscopic mechanism of this method. Detailed quantitative information on the atomic and electron structure of the prepared materials and qualitative information on the surface and granularity will be obtained. The effect of the mechanical effect on the physico-chemical (magnetic, electrical and optical) properties of mechanosynthetized materials will be studied by comparison with materials of the same composition prepared by other conventional methods.
Duration: 1.1.2020 - 31.12.2022
Hybrid Composites for Complex Treatment of Industrial Waters
Hybridné kompozity pre komplexné čistenie priemyselných vôd
Program: SRDA
Project leader: Melnyk Inna PhD.
Annotation:Water is an issue and became a priority of the research of the 21st century. The core subject of the project proposal lays in the research priorities defined by Strategy of research and innovations for the intelligent specialization of Slovak republic – RIS 3 as well as Strategy Europe 2020. The main objective of the project is the preparation of composite micro and nano adsorbents based on silica and metal oxides for the removal of inorganic and organic pollutants from waters. The materials will be functionalized by various functional groups in order to achieve better selectivity towards different metal ions and organic compounds. Multifunctional porous and nonporous spherical adsorbents will be prepared via one-step synthesis. The magnetic composites with mono- and multi-functional surface layers will synthesize as well. The sorption affinity of the new materials towards arsenic, lead, cadmium, mercury ions, and the selected organic pollutants such as adsorbable organic halides from metallurgy industry, polyaromatic hydrocarbons from agriculture, azodyes from textile industry and/or residuals of medical drugs will be investigated.
Duration: 1.7.2020 - 30.6.2024
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Chalkogenidy ako perspektívne, ekologicky a ekonomicky prijatelné nanomateriály pre energetiku a medicínu
Program: SRDA
Project leader: Dr.h.c. prof. RNDr. Baláž Peter DrSc.
Duration: 1.7.2019 - 30.6.2023
Intensification of Selected Metals Recovery from Refractory Polymetallic Ores and Mining Wastes in Microwave Field
Intenzifikácia získavania vybraných kovov z ťažkoupraviteľných polymetalických rúd a banských odpadov v mikrovlnnom poli
Program: VEGA
Project leader: Ing. Znamenáčková Ingrid PhD.
Annotation:The project is aimed at the study of microwave energy application in recovery of critical and strategic metals (Cu, Sb, Ag, Au, REE) from refractory polymetallic ores and their concentrates. Microwave pre-treatment will realise to meet an effective liberation of utility components. An attention will be paid to selective heating of utility minerals, which strongly absorb the microwave radiation (sulphides and oxides) and of non absorbing barren minerals (silicates). Selectivity of heating and degree of mineral structure failure will analyse by optical and scanning electron microscopy. An influence of microwave on the processes of comminution and separation in magnetic, electric and gravity fields will be observed. Metals winning will be performed by extraction techniques in solutions of mineral and organic acids (EDTA), and their salts, before and after microwave pre-treatment of metal ores and concentrates. Microwave-assisted metals extraction enabling more efficient metals leaching will be also realised.
Duration: 1.1.2021 - 31.12.2024
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Mechanosyntéza a štúdium minerálov na báze komplexných oxidov ako vhodných komponentov zariadení pre výrobu energie s minimálnym negatívnym dopadom na životné prostredie
Program: VEGA
Project leader: RNDr. Fabián Martin PhD.
Duration: 1.1.2019 - 31.12.2022
Possibilities of critical raw materials recovery by advanced methods of mining wastes processing
Možnosti získavania kritických surovín pomocou progresívnych metód spracovania banských odpadov
Program: SRDA
Project leader: Ing. Luptáková Alena PhD.
Annotation:The project idea is in accordance with priorities of strategy for research and development adopted by the government RIS 3 and Strategy of the environmental policy of the Slovak Republic until 2030. The project solution is based on the research and development need of progressive methods of wastes treatment from the mining and processing industry of ore raw materials in order to obtain critical raw materials with regard to environmental protection. The project is focused on the study of the wastes recovery from selected old mining sulphidic burdens in Slovakia - Smolník and Zlatá Baňa, as secondary sources of critical raw materials. The proposed concept of the solution results from the intensification of natural processes combined with advanced physico-chemical and especially biological-chemical processes, in accordance with generally used mining waste treatment procedures and respecting the specific geochemical and hydrogeological conditions of the sites. The expected benefits of the project are the selective metals recovery, the sulphates elimination, the mineral fractions utilization for construction materials and the remediation proposal for the recovery and use of landscape potential.
Duration: 1.7.2021 - 30.6.2025
Preparation of Materials for the Remediation of Old Mining Sites.
Príprava materiálov pre remediáciu environmentálnych záťaží po banskej činnosti
Program: VEGA
Project leader: Ing. Václavíková Miroslava PhD.
Annotation:Due to intensive industrial activities, many pollutants such as heavy metals, radionuclides and other substances including organic once enter the environment and have been identified as highly toxic and harmful to human health. Heavy metals are non-biodegradable species. In the aqueous environment they occur in dissociated forms (as cations i.e. Cd2+, Pb2+, Cu2+, Zn2+; anions/oxyanions i.e. HAsO42-, CrO42-, HSeO4-, HSeO3-, HMoO4--). One of the priority sources of heavy metals in Slovakia are old and/or abandoned mines with the significant streams of acid mine drainage (AMD) waters. The objective of the project is the synthesis and investigation of composite sorbents based on Fe oxides for the removal of both cationic and anionic forms of heavy metals/metalloids from aqueous media. Moreover, the sortion affinity towards the selected organic contaminants such as polyaromatic hydrocarbons will be investigated as well.
Duration: 1.1.2019 - 31.12.2022
Study of the bio-oxidising and bio-reducing processes of sulphur and its compounds in environment and industry
Štúdium biooxidačných a bioredukčných procesov síry a jej zlúčenín v životnom prostredí a v priemysle
Program: VEGA
Project leader: Ing. Luptáková Alena PhD.
Annotation:The project is focused on the study of positive and negative effects of the metabolic activity of sulphur-oxidizing and sulphate-reducing bacteria to the environment and technologies connected with mineral processing and construction industry. The main research area is to develop method of application and sulphuric bacteria metabolism control in connection with industrial waste water treatment, prediction study and prevention of corrosive effects on building materials. The study of new methodology about the combination of conventional methods with biooxidation and bioreduction of sulphur and its compounds in the treatment and processing of raw materials, industrial wastes and environmental matrices is the expected benefit of the project.
Duration: 1.1.2019 - 31.12.2022
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Štúdium možností mechanochemickej syntézy selenidu striebra - polovodiča pre uskladňovanie energie
Program:
Project leader: Mgr. Gáborová Katarína
Annotation:Recently, green technologies have attracted much attention due to environmental concerns. The project is focused on the verification of three strategies of silver selenide, Ag2Se mechanochemical synthesis, which is nanostructured semiconductor and perspective thermoelectric material. One-step direct synthesis from the precursors AgNO3 and SeO2 and two other two-steps synthetic pathways will be studied, whereby in the first step, Ag nanoparticles will beprepared by milling-induced reduction using a chemical or biological reducing agent. These hitherto unrealized processes represent a simple, low-cost, environmentally friendly, and solvent-free method with the potential for largescale fabrication of Ag2Se. Innovative energy-saving technology is considered to be a promising way to relieve the impact on the environment. The project includes the monitoring of the kinetics of the proposed mechanochemical syntheses, an evaluation of the phase purity of the prepared products by X-ray powder diffractometry (XRPD), morphology characterization by scanning and transmission electron microscopy (SEM, TEM) and measurement of thermoelectric properties.
Duration: 1.1.2021 - 31.12.2022
The study of particulate matters in ambient air and selected environment components using the screening methods
Štúdium tuhých častíc v ovzduší a vybraných zložiek životného prostredia využitím screeningových metód
Program: VEGA
Project leader: Ing. Hančuľák Jozef PhD.
Duration: 1.1.2019 - 31.12.2022
The effect of the strain rate on the strength and deformation rock properties for the research of the rock disintegration
Vplyv rýchlosti deformácie na pevnostné a pretvárne vlastnosti hornín pre výskum rozpojovania hornín
Program: VEGA
Project leader: Ing. Labaš Milan PhD.
Duration: 1.1.2019 - 31.12.2022
Relationships between structure and unusual physical properties in highly nonequilibrium oxides prepared by unconventional mechanochemical synthesis
Vzťahy medzi štruktúrou a nezvyčajnými fyzikálnymi vlastnosťami vo vysoko-nerovnovážnych oxidoch pripravených nekonvenčnou mechanochemickou syntézou
Program: SRDA
Project leader: RNDr. Fabián Martin PhD.
Annotation:Nonconventional mechanochemical methods will be used to prepare the far-from-equilibrium novel nanooxides. The studies of the early stages of the mechanically induced nucleation and growth of nonequilibrium phases will provide access to the elucidation of the microscopic mechanism of the nonconventional mechanochemical preparation route. This point represents one of the fundamental but till now the unsolved scientific issues in the field of mechanochemistry/solid state chemistry. Valuable quantitative insights into the atomic and electronic structures as well as into the dynamic and kinetic processes in the mechanochemically prepared nanomaterials will be obtained. Mechanical, magnetic and electric responses of the far-from-equilibrium nanophases will be studied experimentally with the aim to establish the interplay between their local structure and the functional behavior.
Duration: 1.7.2020 - 30.6.2024
Gold recovery from refractory sulphide concentrates by mechanochemico-biological activation
Získavanie zlata z ťažko spracovateľných sulfidických koncentrátov s aplikáciou mechanochemicko-biologickej aktivácie
Program: VEGA
Project leader: Ing. Ficeriová Jana PhD.
Annotation:The demanding processing of gold-containing concentrates, as well as dangerous cyanide method for gold recovery encourage the application of new ways to obtain this precious metal. Therefore, the aim of this project is obtaining gold from refractory sulphide concentrates by using of non-cyanide mechanochemico-biological processes. Mechanochemical activation of concentrates and siliceous shells of specified algae in the non-cyanide environment causes changes in the physico-chemical properties of gold minerals as well as algae mineral constituents. These structural changes have a decisive influence on the formation of gold nanoparticles into non-cyanide media under the specific reaction conditions, from which they are subsequently fixed in the cellular matrix of mechanochemically activated algal shells. Gold nanoparticles can have various utilization in practice, such as accelerating the breakdown of hazardous substances or disposal of pollutants from contaminated water, soil and air.
Duration: 1.1.2020 - 31.12.2022

The total number of projects: 13