Modelling of the vertical migration process of phosphogypsum components in the soil profile
Journal Title: Журнал інженерних наук - Year 2017, Vol 4, Issue 2
Abstract
This paper focuses on the study of the process of vertical migration of phosphogypsum components according to the soil profile. The qualitative and quantitative identification of main biogenic elements (phosphorus, sulphur, calcium etc) and heavy metals in lysimetric solutions from various horizons while getting on the surface of soil solutions containing phosphogypsum components is carried out by means of designed laboratory and experimental complex. The mineral hard soil fraction is also analysed. According to the results of the X-ray diffractometrical researches, the carbonates with heavy metals in their structure, caused by the ion-exchange with Са2+, were found in the mineral structure of the illuvial horizon soil samples. The results of experimental modeling indicate significant changes in the chemical parameters of groundwater, which are obtained by passing water with phosphogypsum particles on a model soil profile, which makes it easy to track the input data. In the upper part of the profile after 1 000 hours and for the first speed of the infiltration process, the constant moisture level was 25,6%, after the second speed of infiltration, it rose to 29.1 %. Noted that the highest concentration of biogenic elements (calcium, sulfur, potassium) was found in lysimetric solutions obtained from the humus and eluvial horizons. In addition, it is determined that iron is present up to 5 %, nickel – within the range of 1–3 %, and copper – up to 1 %. It should be noted that the biochemical transformations of silicon influence the fractional distribution of heavy metals, which can be fixed by sorption-sedimentation mechanisms in silica, oligo and polysilicon compounds, as well as in crystalline lattice structures of clay minerals, quartz, etc. The model of soil and geochemical situation was formed according to the soil profile under the influence of the phosphogypsum within the three-dimensional surface, developed with the help of the stochastic reconstructions based on the images of the scan electron microscopes.
Authors and Affiliations
Ye. Yu. Chernysh, L. D. Plyatsuk, O. M. Yakhnenko, I. O. Trunova
Keywords
Related Articles
- EP ID EP247882
- DOI 10.21272/jes.2017.4(2).g6
- Views 67
- Downloads 0
Analysis of the Methodology of Constructing a Production Function Using Quality Criteria
In the article to forecast the trends of development of the state's industry (for example, Ukraine), a method for evaluating the parameters included in the classical Cobb-Douglas formula is developed. On the basis of the...
Analysis of the Theories for Assessment of the Quality Management Product Efficiency
In the article the advantages of introduction and reasons of low efficiency of the quality management system at the machine-building enterprises are determined. The methods and tools of the quality management system are...
Numerical Simulation of the Evaporative Air Cooler with a Capillary-Porous Structure
Application of evaporative air cooling in various technologies allows reducing energy costs for improving environmental performance. Considering the promise of using air coolers with a capillary-porous structure, a mathe...
Diamond Grinding the Ceramic Balls from Silicon Carbide
The influence of the machining regime was experimentally investigated on the output indexes of the diamond grinding the ceramic balls from silicon carbide, such as the rate of the material removal and the rate of changin...
Optimization of controlled damages on the recognition in the master education
Information considered extreme learning algorithm is able to study decision support system as part of the automated control system combined heat and power unit with optimized control tolerances recognition. Within the fr...