Abstract:Purpose. To experimentally determine the main design and operational parameters of the influence of rock mass properties on the Roller Crusher performance when processing basalt rock mass. Methodology. The crushing and grinding of basalts are studied by the methods of mathematical statistics in order to identify the results obtained and determine the dependences of technological parameters on the mechanical impact factors. Experimental studies are carried out on the example of basalts from the Rafalivskyi qu… Show more
“…The content of nitrates in the soil exceeds the maximum allowable concentration of MPC (45 mg/dm 3 ) and ranges from 30 to 90 mg/dm 3 . The content of manganese in groundwater within the study area in all samples exceeds the MPC (0.1 mg/dm 3 ). An area with a manganese content in groundwater of 50-300 mg/dm 3 has been allocated directly on the territory of the solid household waste site.…”
Section: Justification Of the Technological Parameters Of Interceptio...mentioning
confidence: 74%
“…Due to the fact that mine waters are highly mineralized (average mineralization is 2.0-4.0 g/dm 3 ) and contain a significant amount of toxic substances, there is a real threat of contamination of aquifers and the fertile soil layer.…”
Section: Ecological Condition Of Soils and Groundwater In The Areas W...mentioning
confidence: 99%
“…The bulk of waste of this class (98%) is neutralized, the rest is transferred to other enterprises for further use or stored . Waste of the fourth class of danger is represented mainly by phosphorus oxides, which accumulate in phosphogypsum dumps located near the production site of OJSC " Rivneazot " [3] .…”
Section: Ecological Condition Of Soils and Groundwater In The Areas W...mentioning
As a result of the intensive development of science and technology, a large number of various industries, which use the most modern technologies, have emerged. The complexity of technological processes increases the risk of situations that can cause irreparable damage to the environment. Therefore, the primary task of modern times has become the prevention of environmental problems and the reduc-tion of the consequences to which their appearance may lead, or has already led. In particular, one of the important issues that need to be solved as soon as possible is the protection of underground sources from pollution that gets there as a result of active industrial activity of mankind, which significantly affects people's health. Thus, managing the process of localization of soil and groundwater contamina-tion is an important and urgent task. Its solution will increase the reliability of engi-neering systems for the environmentally safe operation of waste storage facilities, which will significantly reduce the morbidity of people within the limits of their influence.
“…The content of nitrates in the soil exceeds the maximum allowable concentration of MPC (45 mg/dm 3 ) and ranges from 30 to 90 mg/dm 3 . The content of manganese in groundwater within the study area in all samples exceeds the MPC (0.1 mg/dm 3 ). An area with a manganese content in groundwater of 50-300 mg/dm 3 has been allocated directly on the territory of the solid household waste site.…”
Section: Justification Of the Technological Parameters Of Interceptio...mentioning
confidence: 74%
“…Due to the fact that mine waters are highly mineralized (average mineralization is 2.0-4.0 g/dm 3 ) and contain a significant amount of toxic substances, there is a real threat of contamination of aquifers and the fertile soil layer.…”
Section: Ecological Condition Of Soils and Groundwater In The Areas W...mentioning
confidence: 99%
“…The bulk of waste of this class (98%) is neutralized, the rest is transferred to other enterprises for further use or stored . Waste of the fourth class of danger is represented mainly by phosphorus oxides, which accumulate in phosphogypsum dumps located near the production site of OJSC " Rivneazot " [3] .…”
Section: Ecological Condition Of Soils and Groundwater In The Areas W...mentioning
As a result of the intensive development of science and technology, a large number of various industries, which use the most modern technologies, have emerged. The complexity of technological processes increases the risk of situations that can cause irreparable damage to the environment. Therefore, the primary task of modern times has become the prevention of environmental problems and the reduc-tion of the consequences to which their appearance may lead, or has already led. In particular, one of the important issues that need to be solved as soon as possible is the protection of underground sources from pollution that gets there as a result of active industrial activity of mankind, which significantly affects people's health. Thus, managing the process of localization of soil and groundwater contamina-tion is an important and urgent task. Its solution will increase the reliability of engi-neering systems for the environmentally safe operation of waste storage facilities, which will significantly reduce the morbidity of people within the limits of their influence.
“…Boundary value is such a minimal content of a useful component in terms of which the sample may be included to a productive contour [29]- [32]. Apparently, the idea of geometry and structure of productive deposits as well as average percentage of useful components within them depends upon the boundary value [33], [34]. The lower boundary value is, the greater geometry of the deposits are, the simpler their shape is, and the lower mineral content is.…”
Purpose.Develop an efficient assessment model for amber placers within the analyzed block involving its content in the samples taken inside the block as well as out of it. Methods. To obtain results, a complex of scientific procedures has been applied consisting of system analysis; generalization; mathematical statistics; mathematical, perfect, and psychical modelling; field experiment; and forecasting. Findings. Methods to assess amber placer reserves have been substantiated. The potential of discrete kriging has been involved inclusive of the search for the best evaluation of amber content within the analyzed block taking into consideration the mineral percentage in the samples taken inside the block as well as out of it. Originality. The research has helped understood that the discrete kriging results help assess average amber content within the square and curvilinear zones tending to the central well (in terms of amber percentage) both in the central well and in wells of the first and second contact zones. Practical implications.Identification of the most efficient technique, assessing amber reserves, improves forecasting reliability of the resources with minimal cost.
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