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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
The assessment of environmental load of the environment in former mining area using traditional and alternative bioindication methods.
Hodnotenie environmentálneho zaťaženia prostredia v bývalom banskom areáli využitím tradičných a alternatívnych bioindikačných metód.
Program: VEGA
Project leader: Ing. Luptáková Alena PhD.
Annotation:The present project is focused on the research of pollutants in individual environmental components within the former mining area in the cadastral area of the villages Zlatá Baňa and Červenica (Eastern Slovakia). For the research purposes, in addition to traditional methods, alternative bioindication research methods will be used. These methods are low-cost, easy to implement and effective for assessing the content of contaminants. By statistical evaluation of the obtained results will be verified the suitability and effectiveness of these methods, and suggested the most appropriate alternative method. There will be assessed the impact of heavy metals on selected biological, chemical and physical characteristics of environmental components.
Duration: 1.1.2018 - 31.12.2021
Hybrid Composites for Complex Treatment of Industrial Waters
Hybridné kompozity pre komplexné čistenie priemyselných vôd
Program: SRDA
Project leader: Melnyk Inna PhD.
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
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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
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 - 31.12.2021
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
Multicomponent filters in process of leachates cleaning from the toxic elements after the bioremediation of soils contaminated by metallurgical industry
Viaczložkové filtre v procese čistenia výluhov od toxických prvkov po bioremediácii pôd kontaminovaných hutníckym priemyslom
Program: VEGA
Project leader: Ing. Znamenáčková Ingrid PhD.
Annotation:The project involves the basic research oriented on the treatment of leachates containing toxic elements originated from the bioremediation process of contaminated soils. The project continues original methods of soils and sediments bioleaching by heterotrophic bacteria in aerobic and anaerobic conditions studied in previous VEGA project focused on the development of bioremediation technology. The subject of the project is preparation and study of multicomponent filters properties, composed from the natural materials (quartz sand, siderite, pyrite) and synthetic prepared materials (iron and manganese oxides/hydroxides) that will be used for cleaning of leaching media containing toxic elements. The original gain of the project will be the definition of optimal ratio of particular filters components for the most effective recycling of media containing different concentrations of toxic ions in dependence of locality and soil contamination. The greatest accent will be focused on the arsenic removal.
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
High-energy milling for the synthesis of nanomaterials using bio-approach and selected environmental applications
Vysoko-energetické mletie pre syntézu nanomateriálov bio-prístupom a vybrané environmentálne aplikácie
Program: VEGA
Project leader: RNDr. Baláž Matej PhD.
Annotation:The research project is focused on mechanochemical synthesis of the selected nanomaterials via combination of high-energy milling and green approach using precursors based on minerals, natural materials and waste. Mechanochemical reduction will be aimed at preparation of nanocrystalline metals with bactericide effects (Ag, Cu). At the same time, the project will be focused also environmentally, because the application of mechanochemistry will be tested on elimination of halogenated compounds and sorption of toxic metals present in wastewaters after mining and metallurgical activities. Environmental aspect will also resonate by research of selected organic reactions where solid state approach via mechanochemistry can be realized through solvent-free technology. Available characterization methods will be applied for products characterization and monitoring of environmental parameters. The project broadens the application potential of mineralurgy and also metallurgy.
Duration: 1.1.2018 - 31.12.2021
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: 14