Morphology, phase composition and radiological properties of fly ash obtained from the Burshtyn thermal power plant
Journal Title: Фізика і хімія твердого тіла - Year 2018, Vol 19, Issue 2
Abstract
The physic-chemical properties of ash extracted from smoke during the combustion of coal at the Burshtyn thermal power plant were investigated. The particles formed in the flame are crystallized glass beads with a size of 0.8–600 μm. It was found that the ash particles are heterogeneous in their chemical composition. The mass content of the ferric oxides can vary from 2.1% to 96.4%, however, despite this, the Al2O3/SiO2 ratio in the glass balls remains constant at a value of 0.47±0.02. Phase analysis confirmed the presence of α-quartz particles (~ 62 wt%), mullite (~ 32 wt%) and α-FeOOH, α-Fe2O3 and Fe3O4 mixtures (totaling 6 wt%). Radiological studies have revealed higher β- and γ-activity of fly ash, selected from the dump, compared with the fly ash from the electro-filter. This is due to the accumulation of 214Pb and 214Bi radionuclides particles formed on the surface of the particles due to due to decay of 222Rn.
Authors and Affiliations
I. F. Myronyuk, T. R. Tatarchuk, H. V. Vasylyeva, I. P. Yaremiy, I. M. Mykytyn
Keywords
Related Articles
- EP ID EP411365
- DOI 10.15330/pcss.19.2.171-178
- Views 83
- Downloads 0
The Influence of the Synthesis Temperature on Phase Composition and Structure of Tenary Compounds Obtained from the Powder Mixture of the TiH2-Al-C System
This paper presents results of an investigation of the features of phase and structure formation of a ternary compound during thermal sintering use of compacted TiH2-Al-C powder blends. The thermal sintering was carried...
Dynamics of Three-layer Cylindrical Shells Elliptical Cross-Section With a Longitudinal-Transverse Discrete Ribbed Filler
In this paper, we consider the equations of non-axisymmetric oscillations of discretely reinforced multilayer cylindrical shells of elliptical section. When analyzing the elements of the elastic structure, a refinement m...
Self-Organising Processes and Fractal Approach to the Formation of Non-Crystalline States
Shows a description of the fractal structure to the non-crystalline state using the system non-linear dynamic equations, which takes into account the flow of negative entropy of the surrounding environment and the fracti...
Physical-Chemical Properties and Crystal-Chemical Doping Mechanisms of ZnSe Crystal by Co, Ni Transition Elements
Based on the analysis of physical and chemical properties there is made the point defect model of the doped by transition metals (Co, Ni) Selenium Zinc crystals. Based on the proposed crystal-quasichemical formulae of th...
Calculation of Phase Equilibrium in NbC-Manganese Steel System for Carbide Steels Development
Niobium carbide due to its high microhardness is an perspective refractory compound for using as ceramic phase in tungsten free cermets – carbide steels. In this study phase equilibrium in NbC (60 % vol.) – manganese ste...