A5017513515- Recycling and utilization of industrial and municipal waste in materials production
- Mining and Gasification Technologies
- Pigment Synthesis and Properties
- Radioactive element chemistry and processing
- Chemical Synthesis and Characterization
- Radioactive contamination and transfer
- Nuclear Materials and Properties
- Human Health and Disease
- Adsorption, diffusion, and thermodynamic properties of materials
- Environmental and Industrial Safety
- Environmental Science and Water Management
- Economic Issues in Ukraine
- Recycled Aggregate Concrete Performance
- Metallurgical Processes and Thermodynamics
- Iron and Steelmaking Processes
- Scientific Research and Studies
- Extraction and Separation Processes
- Diverse Scientific Research in Ukraine
- Education, Law, and Society
- Electrokinetic Soil Remediation Techniques
- Advancements in Solid Oxide Fuel Cells
- Nuclear materials and radiation effects
- Material Properties and Applications
- Polymer Synthesis and Characterization
- Water Treatment and Disinfection
National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
2010-2024
Odessa National Medical University
2023
National Polytechnic School
2009
A.V. Dumansky Institute of Colloid and Water Chemistry
2006
Silylation of clay minerals from Cherkasy deposit (Ukraine) montmorillonite (layer silicate) and palygorskite (fibrous was performed using organosilane (3-aminopropyl)triethoxysilane (APTES). Solvents with different polarity (ethanol, toluene) were used in synthesis. The structure modified characterized by complex methods (X-ray powder diffraction, Fourier transform infrared spectroscopy, nitrogen adsorption-desorption at −196 °C thermal analysis). Studies adsorption characteristics...
Materials based on CeO2-La2O3-Eu2O3 and La2O3-Eu2O3 systems are promising candidates for a wide range of applications, but the phase relationship has not been studied systematically previously. The relations in ternary system at 1500?C binary 1600-1500?C were air by X-ray diffraction (XRD) investigation overall concentration range. isothermal section diagram constructed. It was established that there exist fields solid solutions hexagonal (A) modification La2O3, cubic CeO2 with fluorite-type...
З аналізу літературних джерел встановлено, що останні десятиліття збільшується зацікавленість науковців у всьому світі до матеріалів на основі оксиду церію (IV), легованого оксидами рідкісноземельних елементів. Фізико-хімічною основою створення нових є фазові рівноваги в багатокомпонентних оксидних системах. Одним з важливих завдань під час вивчення фазових рівноваг системах встановлення меж стабільності твердих розчинів (концентраційні та температрні інтервали), а також дослідження фаз. У...
В роботі наведено результати досліджень фізико-механічних властивостей виробів будівельної кераміки, виготовленої на основі легкоплавкої глини з додаванням відходів вуглезбагачення. Додавання сприяє утворенню евтектики, знижуючи вогнетривкість аморфного кремнезему та позитивно впливає процес спікання. Проведені дослідження свідчать, що місцева легкоплавка глина відпрацюванням технологічних режимів може бути використана для виробництва яка так необхідна буде після закінчення воєнного стану і...
The structure and adsorption characteristics of silica -and montmorillonite-based nanocomposites are investigated. Tetraethoxysilane was used as a source silica. porous investigated by the method low-temperature nitrogen adsorption.According to research results, it found that small amount in nanocomposite samples (14 % SiO2) contributes formation material with larger specific surface area greater number meso- macropores compared original montmorillonite. This, turn, leads better diffusion...
Background. Using natural clay sorbents on a wide scale, one of the issues that need further development is issue used utilization. From an economic point view regeneration inappropriate. Therefore, most suitable methods waste silica disposal their high temperature processing.Objective. Establishing cobalt ions immobilization in structure based illite and determination optimal heat treatment conditions for formation nanostructured materials with improved physicomechanical properties...
Based on the modern ideas about environmental protection, this paper reports a study into utilization of water-treated waste from heavy metals (using copper(II) compounds as an example) for manufacture ceramic building materials. The examined clay minerals local deposits and optimal conditions their heat treatment (at 1,100 °C) have been proposed sorption removal pollutants inorganic origin wastewater. use wastewater after its makes it possible to address several tasks at same time: protect...
The object of research is low-melting clays the Kyiv region (Ukraine). work devoted to study obtaining ceramic materials resistant low temperatures. Frost resistance one most important characteristics for regions in which are used with frequent temperature transitions through 0 °C. production frost-resistant wall determined by type raw and technological parameters. main methods increasing frost are: use less dispersed clays; batch homogenization; formation material without textural defects...
The object of research is the physical and chemical processes forming structure properties ceramic masses based on local low-melting clay raw materials Kyiv region Ukraine by adjusting mineralogical composition technological regimes. Building are durable, ecological natural. They provide increased comfort buildings due to creation a favorable temperature humidity climate premises. When using in production, there need develop ways methods improve quality building ceramics. efficiency...
The analysis shows that the primary measure for purification of drinking water is its reliable disinfection with oxidants, which are chlorine and compounds, dioxide, ozone. aim article to analyze existing methods determination chlorite, hypochlorite chlorate anions in water. To dioxide strength solutions (to control generator performance) iodometric method (determination concentration, concentration free chlorine, chlorite anions; relative error ≤ 5%) direct absorption at 445 nm range...
Summary The development of mining and processing industries in Ukraine has increased the risk negative impact on environment. One most complicated environment situations is Kryvyi Rig basin, where iron ore uranium are mined at numerous quarries. A variety methods have been proposed for remediating water, soil sediments. relatively new (in Eastern Europe) in-situ method a permeable reactive barrier (PRB) that constructed subsurface to intercept treat contaminated groundwater. promising...
The object of the study is physical and chemical processes formation structure properties, intensification sintering ceramic masses based on local raw materials (Krynichanska low-melting clay Kyiv region, Ukraine) by regulating mineralogical composition technological regimes. When choosing for specific technologies, it necessary to be guided a comprehensive assessment physicochemical properties rock. These can granulometric material composition, including impurity components, presence...
Summary Object of this study is to characterize risk factors from water supply during martial law and recommendations for minimization. Problems utilities in wartime: Destruction sources. Demolition power systems a long time. distribution networks. with equipment materials their financing. Loss logistics system control response emergency situations. Deficit specialists. Recommended purification techniques situations: Water filtering through activated carbon: sand filter multilevel filter....