Improvement of the Occupational Safety by Radical Isolation of Pollution Sources during Underground Ore Mining

2021 ◽  
pp. 7-12
Author(s):  
V.I. Golik ◽  
◽  
G.V. Stas ◽  
M.Yu. Liskova ◽  
Ch.B. Kongar-Syuryun ◽  
...  
Keyword(s):  
Air Pollution ◽  
Granulometric Composition ◽  
Occupational Safety ◽  
Underground Mining ◽  
Ore Deposits ◽  
Safety Measures ◽  
Grinding Mills ◽  
Technogenic Waste ◽  
Leaching Methods

One of the ways to protect the health of the employees in the mining enterprises is the improvement of the mine atmosphere by strengthening safety measures in the underground mining of minerals, especially those that pose a particular hazard. The aim of the study is to develop a technology for the radical protection of the employees from specific pollution. To achieve this goal, a set of tasks is being solved, one of which is the use of technogenic waste as materials for the preparation of hardening filling mixtures. It is experimentally established that the process of increasing the strength of the tailings of various concentration plants is adequate, the structures of which can be used to control the geomechanics of the ore-bearing massif. Classification of the strengthening mixtures that allow to increase strength can occur when unloading from the crushing and grinding mills. Use of tailings for the manufacture of insulating massifs is possible after extracting the remaining metals from them, for example, using one of the leaching methods. Air pollution with specific substances during underground mining of ore deposits can be radically reduced by isolating workings with artificial insulating massifs. Possibility of using tailings for the manufacture of insulating artificial massifs is substantiated experimentally by comparing the capabilities of mills of various types. The issues of atmospheric air pollution during underground mining, mainly of ore deposits, are considered. Quantitative values of hazard for development systems are given. The results of experiments confirming the possibility of using tailings for the manufacture of concrete insulating artificial massifs are presented. Quantitative values are obtained related to the capabilities of mills for obtaining a product of the same size with different granulometric composition of the starting material when used in industry.

Experience in the development of innovative underground geotechnologies for mining of ore deposits

2020 ◽  
pp. 338-350
Author(s):  
I. V. Sokolov ◽  
Y. G. Antipin ◽  
N. V. Gobov ◽  
I. V. Nikitin
Keyword(s):  
Systematic Approach ◽  
Underground Mining ◽  
Mineral Resources ◽  
Environmental Safety ◽  
Ore Deposits ◽  
Operating Costs ◽  
Processing Waste ◽  
Ore Preparation ◽  
Additional Value

Based on an analysis of the design principles and practice of underground mining of ore deposits, the most significant features, trends to develop and directions to enhance of underground geotechnology in the field of opening and preparation, mining systems, filling works and ore preparation have been established. The main signs of innovation - scientific research and implementation in production in order to obtain additional value, are highlighted. Various approaches to the development of innovative underground geotechnologies are shown and a methodology for their justification is formulated based on a systematic approach implemented in the framework of the concept of integrated development of mineral resources and on the principles of economic efficiency, industrial and environmental safety, completeness of subsoil development. The experience of the IM UB RAS on the development and implementation of innovative underground geotechnologies in the design and industrial operation of a number of ore deposits is given, which significantly increased the completeness and quality of ore extraction from the subsoil, increased labor productivity in sinking and stoping works, reduced capital and operating costs for ore mining and to utilize mining and processing waste in the mined-out space.

scholarly journals Antimony and Nickel Impurities in Blue and Green Copper Pigments

Minerals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1236
Author(s):  
Sylwia Svorová Pawełkowicz ◽  
Barbara Wagner ◽  
Jakub Kotowski ◽  
Grażyna Zofia Żukowska ◽  
Bożena Gołębiowska ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Ore Deposits ◽  
Copper Ore ◽  
Inductively Coupled ◽  
Parish Church ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Quantitative Analyses ◽  
First Time

Impurities in paint layers executed with green and blue copper pigments, although relatively common, have been studied only little to date. Yet, their proper identification is a powerful tool for classification of paintings, and, potentially, for future provenance studies. In this paper, we present analyses of copper pigments layers from wall paintings situated in the vicinity of copper ore deposits (the palace in Kielce, the palace in Ciechanowice, and the parish church in Chotków) located within the contemporary borders of Poland. We compare the results with the analyses of copper minerals from three deposits, two local, and one historically important for the supply of copper in Europe, i.e., Miedzianka in the Holy Cross Mountains, Miedzianka in the Sudetes, and, as a reference, Špania Dolina in the Slovakian Low Tatra. Optical (OM) and electron microscopy (SEM-EDS), Raman spectroscopy, and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) have been used for a detailed investigation of the minute grains. Special attention has been devoted to antimony and nickel phases, as more unusual than the commonly described iron oxides. Analyses of minerals from the deposits helped to interpret the results obtained from the paint samples. For the first time, quantitative analyses of copper pigments’ impurities have been described.

scholarly journals ASSESSMENT OF AIR POLLUTION LEVEL OF NITROGEN DIOXIDE AND TRENDS OF IT CHANGES IN THE CITIES OF UKRAINE

2018 ◽  
pp. 87-95 ◽  
Author(s):  
Y. Yatsenko ◽  
O. Shevchenko ◽  
S. Snizhko
Keyword(s):  
Air Pollution ◽  
Nitrogen Dioxide ◽  
Pollution Level ◽  
Method Of Least Squares ◽  
Statistical Parameters ◽  
Group 3 ◽  
Environmental Measures ◽  
High Level

The purpose of the work is to study the current level and the main trends of atmospheric air pollution of the cities of Ukraine with nitrogen dioxide to identify the most polluted cities, their ranking to determine the list of cities for the priority implementation of environmental measures. For the purpose of the study, the information of the Central Geophysical Observatory on the average annual concentrations of nitrogen dioxide in the air of 51 cities of Ukraine for the period 1998-2015 was used. The study used the classical methods of applied mathematical statistics (estimation of statistical parameters of distribution of concentrations, construction of time trends on the method of least squares, graphical methods of visualization of levels of air pollution), which were implemented using the available programs "MS-Excell" and "Statistica-8.0". The classification of cities according to the level of MPC exceeds average annual concentrations of nitrogen dioxide. 3 groups of cities were allocated: 1 group (21 cities) permissible level of pollution (<1 MPC); 2 group (27 cities) – increased level of pollution (1-2 MPC); group 3 (3 cities) – high level of pollution (2-3 MPC). It has been established that in the air of 21 cities (41% of all cities where nitrogen dioxide is monitored in the atmosphere) of 51 cities, there is an acceptable level of air pollution. In the remaining cities (59%) – there is a stable excess of MPC. In 23 cities, even the minimum concentrations of NO2 exceed the permissible standards. The study of long-term dynamics of nitrogen dioxide in air has shown that the increase of concentrations of this pollutant for 1998-2015 is observed in 28 cities (55%) of 51. The most significant increase in concentrations in the air occurred in Kherson, Lutsk, Donetsk and Gorishni Plavni. In 13 cities reduction of concentrations was recorded, and in 10 cities the content of this pollutant in the air practically does not change.

scholarly journals Knowledge of chemotherapy and occupational safety measures among nurses in oncology units

2017 ◽  
Vol 14 (3) ◽  
pp. 131 ◽  
Author(s):  
RoseEkama Ilesanmi ◽  
SylviaE Nwagbo ◽  
BeatriceM Ohaeri ◽  
AbimbolaO Oluwatosin
Keyword(s):  
Occupational Safety ◽  
Safety Measures

scholarly journals Analysis of Metal Fire Problems and Corresponding Safety Measures

2020 ◽  
Vol 20 (2) ◽  
pp. 79-87
Author(s):  
Euipyeong Lee
Keyword(s):  
Case Analysis ◽  
Waste Recycling ◽  
Fire Prevention ◽  
Fire Departments ◽  
Safety Measures ◽  
Response System ◽  
Prevention Activities

The problems and measures were analyzed through the case analysis of metal fire as there was not enough research on metal fire. The problems included ① not having metal fires in the classification of fires, ② the lack of safety measures, ③ not having grounds for the specified quantity of the hazard, ④ an inadequate interim treatment of waste recycling and inappropriate notification by the Ministry of Environment. And the measures included ① the enactment of a metal fire guideline, ② establishment of preparedness and response system of fire departments, ③ strengthening fire prevention activities, ④ review of reduction of specified quantity such as iron, magnesium, etc.

scholarly journals Integral risk assessment to optimize expenses for occupational safety measures at a machine-building enterprise

2019 ◽  
Vol 17 (3) ◽  
pp. 10-22
Author(s):  
Vitalii Bezsonnyi
Keyword(s):  
Risk Assessment ◽  
Occupational Safety ◽  
Workplace Safety ◽  
Machine Building ◽  
Assessment Procedure ◽  
Safety Measures ◽  
Safety And Health ◽  
Building Enterprise ◽  
Integral Assessment ◽  
Industrial Risks

In the absence of uniform and unified requirements for the assessment of industrial risks at an enterprise, the system approach remains the only tool for a comprehensive assessment of the workplace safety. Implementation of Occupational Safety and Health (OSH) system involves identifying, analyzing and reducing risks at the workplace. The purpose of the article is to calculate the minimum expenses for occupational safety measures and minimize production risks identified through the developed procedure for analyzing the hazards of the machine-building enterprise. The research methodology is based on the integrated use of qualitative and quantitative approaches to risk assessment, namely, structured assessment and integral assessment using the “rucksack problem” optimization model. The study identifies the risks that are most common and the most serious ones. The procedure of risk reduction is proposed, which is to determine the minimum costs for achieving each of the integral assessments for the machine-building enterprise. The practical value of work consists in the ability to directly apply the developed methodology for risk assessment at the enterprises of the machine-building industry, and to easily adapt the risk assessment procedure to other conditions.

Classification of Occupational Safety Costs in terms of Medical Examinations in the Republic of Kazakhstan

2021 ◽  
pp. 37-42
Author(s):  
G.T. Aitkenova ◽  
Keyword(s):  
Positive Result ◽  
Empirical Data ◽  
Occupational Safety ◽  
Cost Management ◽  
Correct Classification ◽  
The Republic ◽  
The Cost ◽  
Medical Examinations ◽  
Positive Effect

The results of the study of the classification of occupational safety costs, in particular the classification of costs for medical examinations, according to the current requirements of the regulatory legal acts and documents of the Republic of Kazakhstan are presented. The Labor Code of the Republic of Kazakhstan does not regulate the cost of financing occupational safety costs in the organizations. In addition, there are no state-approved methodology for planning and occupational safety budgeting costs. International research in the field of occupational safety confirms the positive effect of the investments in occupational safety on the competitiveness, productivity, and sustainability of the enterprise at the market. At the same time, the methodologically sound organization of planning and financing of occupational safety costs depends on their correct classification, which further contributes to the construction of a rational budgetary system of the enterprise in the field of occupational safety. The need for cost classification is due to the fact, that the existing occupational safety activities have different signs and types of costs. In the process of the study the empirical data is used, for example, codes, laws, and other regulatory legal acts of the Republic of Kazakhstan, as well as the scientific research from near and far abroad. The paper offers three signs of the classification of occupational safety costs. In accordance with the proposed signs of cost classification, the types of medical examinations that employers are legally required to conduct for their employees are distributed. Thus, the classification of occupational safety costs, which is aimed at the cost management, should consider all the main options for solving managerial tasks of the enterprise in the field of occupational safety, and should be applicable in practice. At the same time, the classification of costs with varying degrees of detail contributes to the sound planning and financing of the costs for employee occupational safety, which will lead to a positive result from the investment.

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