T. Suponik, D. Franke, R. Frączek, K. Nowińska, P. Pierzyna, Z. Różański, P. Wrona
The aim of the study was to assess the effect of climate change, mainly higher and lower precipitation, on the intensity of the impact of a coal waste dump on groundwater. The analysis used meteorological data for the Katowice region in 2002e2020 as well as data on the height of the groundwater table in the vicinity of the coal waste dump, and data on physicochemical parameters and chemical composition of groundwater in 2004e2020. Based on the analyses, it was found that the periods of drought in the Silesian Voivodeship, located in the south of Poland, occurred mainly in spring, while periods of excessive short-term rainfall in summer. The period of excessive annual precipitation occurred between 2007 and 2010, followed by a long period of dry or very dry years that lasted until 2016. During the period of excess annual precipitation, the leachate from the waste dump caused a decrease in the pH of groundwater from ca. 5 to 2.50, while an increase in electrolytic conductivity (EC) and the concentration of sulphates and zinc from ca. 1300 ms/cm, 100 mg/L, 5 mg/L to 5100 ms/cm, 3890 mg/L, 18.5 mg/L, respectively.
{"title":"The impact of precipitation on the groundwater of coal waste dump","authors":"T. Suponik, D. Franke, R. Frączek, K. Nowińska, P. Pierzyna, Z. Różański, P. Wrona","doi":"10.46873/2300-3960.1031","DOIUrl":"https://doi.org/10.46873/2300-3960.1031","url":null,"abstract":"The aim of the study was to assess the effect of climate change, mainly higher and lower precipitation, on the intensity of the impact of a coal waste dump on groundwater. The analysis used meteorological data for the Katowice region in 2002e2020 as well as data on the height of the groundwater table in the vicinity of the coal waste dump, and data on physicochemical parameters and chemical composition of groundwater in 2004e2020. Based on the analyses, it was found that the periods of drought in the Silesian Voivodeship, located in the south of Poland, occurred mainly in spring, while periods of excessive short-term rainfall in summer. The period of excessive annual precipitation occurred between 2007 and 2010, followed by a long period of dry or very dry years that lasted until 2016. During the period of excess annual precipitation, the leachate from the waste dump caused a decrease in the pH of groundwater from ca. 5 to 2.50, while an increase in electrolytic conductivity (EC) and the concentration of sulphates and zinc from ca. 1300 ms/cm, 100 mg/L, 5 mg/L to 5100 ms/cm, 3890 mg/L, 18.5 mg/L, respectively.","PeriodicalId":37284,"journal":{"name":"Journal of Sustainable Mining","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83199422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Z. Różański, P. Wrona, G. Pach, A. Niewiadomski, T. Suponik, R. Frączek, Leszek Balcarczyk
Precipitation, especially with a high intensity, affects the condition of mining waste dumps. The article presents the results of research aimed at determining the impact of rain on water erosion on the slopes of a coal waste dump and its thermal state. Preliminary tests of the condition of two slopes of the coal waste dump in Libią _ z (Poland) undertaken in the frameworks of the TEXMIN project was carried out using modern geodesy techniques (low-ceiling photogrammetry and TLS terrestrial laser scanning). The current geometry of the slope surface was faithfully reproduced in the form of a cloud of points with known coordinates x, y, z. The thermal state within the analyzed slopes of the dump was also assessed. Based on thermography studies and measurements of temperature and gas concentrations inside the object, two zones of thermal activity were located on one of the examined slopes. The test results constitute the initial state against which the results of further tests will be compared. This will allow to determine the influence of precipitation on the amount of water erosion and the thermal state of the dump in a specific time period.
降水，特别是强度较大的降水，影响着矿山矸石堆积场的状态。本文介绍了一项旨在确定降雨对煤矸石堆积场坡面水分侵蚀影响及其热态的研究结果。在TEXMIN项目框架内，利用现代大地测量技术(低顶摄影测量和TLS地面激光扫描)对利比奇兹(波兰)的两个煤矸石倾卸场的状况进行了初步测试。以已知坐标x, y, z的点云的形式忠实地再现了斜坡表面的当前几何形状。还评估了所分析的排土场斜坡内的热状态。根据热成像研究以及对物体内部温度和气体浓度的测量，在一个被检查的斜坡上发现了两个热活动区。试验结果构成初始状态，将与进一步试验的结果进行比较。这将使我们能够确定在特定时期内降水对水侵蚀量和垃圾场热状态的影响。
{"title":"The impact of precipitation on state of the slopes surface and thermal activity of the mine waste dump – preliminary study","authors":"Z. Różański, P. Wrona, G. Pach, A. Niewiadomski, T. Suponik, R. Frączek, Leszek Balcarczyk","doi":"10.46873/2300-3960.1035","DOIUrl":"https://doi.org/10.46873/2300-3960.1035","url":null,"abstract":"Precipitation, especially with a high intensity, affects the condition of mining waste dumps. The article presents the results of research aimed at determining the impact of rain on water erosion on the slopes of a coal waste dump and its thermal state. Preliminary tests of the condition of two slopes of the coal waste dump in Libią _ z (Poland) undertaken in the frameworks of the TEXMIN project was carried out using modern geodesy techniques (low-ceiling photogrammetry and TLS terrestrial laser scanning). The current geometry of the slope surface was faithfully reproduced in the form of a cloud of points with known coordinates x, y, z. The thermal state within the analyzed slopes of the dump was also assessed. Based on thermography studies and measurements of temperature and gas concentrations inside the object, two zones of thermal activity were located on one of the examined slopes. The test results constitute the initial state against which the results of further tests will be compared. This will allow to determine the influence of precipitation on the amount of water erosion and the thermal state of the dump in a specific time period.","PeriodicalId":37284,"journal":{"name":"Journal of Sustainable Mining","volume":"52 1","pages":"2-12"},"PeriodicalIF":1.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85608368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Malich, K. Cybulski, M. Wysocka, K. Skubacz, Aneta Michałek, P. Urban
The article presents the analysis how the real coal dust explosion hazard occurs at the distance of the initial 200m of the protective zone maintained along the entire length of driven inclined drift II e face 567 in Polish colliery KWK “BRZESZCZE”, which was used during realization of the project titled Modelling of the mechanism of explosive coal dust deposition in the vicinity of mined faces in terms of identification, assessment and levelling the possibility of its explosion financed by the National Centre for Research and Development in Poland. The mine dust level was between 0.014 kg/m and 0.193 kg/m, and the coal dust level between 0.003 kg/m and 0.051 kg/m, at the content of incombustible solids between 62.9% and 96.9%. In the analysed fragment of the mine working there was settled dry and volatile mine dust of transient water content between 0.1% and 3.8%. In a few measurement points (sidewalls, floor, and the dust explosion barrier) it was observed that the content of incombustible solids was lower than required by the regulations (unsecured mine dust), which resulted from the insufficient application of stone dust and increased intensity of dust settlement, especially in the area near the longwall face. Analyses of the fraction distribution of the settled mine dust showed the presence of fine dust, while coarser fractions were found in the places of lowered content of non-combustible solids. The conclusions indicate that it is necessary to modify the currently applied dust-explosion prevention measures, which ought to adjust the amount of stone dust applied in given sections of the safety zone and the stone dust ought to be applied with more diligence.
{"title":"The Level of Securing Dust Deposits Against the Possibility of Coal Dust Explosion in the Drilled Dog Headings","authors":"B. Malich, K. Cybulski, M. Wysocka, K. Skubacz, Aneta Michałek, P. Urban","doi":"10.46873/2300-3960.1039","DOIUrl":"https://doi.org/10.46873/2300-3960.1039","url":null,"abstract":"The article presents the analysis how the real coal dust explosion hazard occurs at the distance of the initial 200m of the protective zone maintained along the entire length of driven inclined drift II e face 567 in Polish colliery KWK “BRZESZCZE”, which was used during realization of the project titled Modelling of the mechanism of explosive coal dust deposition in the vicinity of mined faces in terms of identification, assessment and levelling the possibility of its explosion financed by the National Centre for Research and Development in Poland. The mine dust level was between 0.014 kg/m and 0.193 kg/m, and the coal dust level between 0.003 kg/m and 0.051 kg/m, at the content of incombustible solids between 62.9% and 96.9%. In the analysed fragment of the mine working there was settled dry and volatile mine dust of transient water content between 0.1% and 3.8%. In a few measurement points (sidewalls, floor, and the dust explosion barrier) it was observed that the content of incombustible solids was lower than required by the regulations (unsecured mine dust), which resulted from the insufficient application of stone dust and increased intensity of dust settlement, especially in the area near the longwall face. Analyses of the fraction distribution of the settled mine dust showed the presence of fine dust, while coarser fractions were found in the places of lowered content of non-combustible solids. The conclusions indicate that it is necessary to modify the currently applied dust-explosion prevention measures, which ought to adjust the amount of stone dust applied in given sections of the safety zone and the stone dust ought to be applied with more diligence.","PeriodicalId":37284,"journal":{"name":"Journal of Sustainable Mining","volume":"17 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89777983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Wrona, Z. Różański, G. Pach, A. Niewiadomski, T. Suponik
Climate change can make an impact on the mining sector and post-mining sites. Among others, extreme weather events are connected with sudden and deep pressure drops which lead to gas emissions from an underground space to the surface through closed shafts. The tests undertaken in the frameworks of TEXMIN project lead to get measuring data of this phenomenon and will allow validating numerical models for further forecasts and mitigation means. Three examples of the results were presented. They showed that the intensity of pressure drop influences strongly on gas emissions from a closed shaft. Although the pressure drop process should be investigated in detail considering hourly or even more frequent variations of pressure. Considering the variation of emitted gases in the vicinity of the closed shaft they remained increased even 20e30 m from the point of emissions.
{"title":"The influence of pressure drop on gas emissions from a mining shaft – an overview","authors":"P. Wrona, Z. Różański, G. Pach, A. Niewiadomski, T. Suponik","doi":"10.46873/2300-3960.1032","DOIUrl":"https://doi.org/10.46873/2300-3960.1032","url":null,"abstract":"Climate change can make an impact on the mining sector and post-mining sites. Among others, extreme weather events are connected with sudden and deep pressure drops which lead to gas emissions from an underground space to the surface through closed shafts. The tests undertaken in the frameworks of TEXMIN project lead to get measuring data of this phenomenon and will allow validating numerical models for further forecasts and mitigation means. Three examples of the results were presented. They showed that the intensity of pressure drop influences strongly on gas emissions from a closed shaft. Although the pressure drop process should be investigated in detail considering hourly or even more frequent variations of pressure. Considering the variation of emitted gases in the vicinity of the closed shaft they remained increased even 20e30 m from the point of emissions.","PeriodicalId":37284,"journal":{"name":"Journal of Sustainable Mining","volume":"4 1","pages":"20-27"},"PeriodicalIF":1.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78616418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Although a major portion of the emitted energy from mine blast is sub-audible (lower frequency), there exist a component that is audible (high frequencies from 20 Hz to 20 KHz) and as such within the range of human hearing as noise. Unlike blast air overpressure (low frequency occurrence), noise prediction from mine blasting has received little scholarly attention in mining sciences. Noise from mine blast is considered a major detrimental blasting effect and can be a menace to nearby residents and workers in the mine. In this paper, a blast-induced noise level prediction model based on Brain Inspired Emotional Neural Network (BENN) is presented. The objective of this paper was to investigate the implementation possibility of the proposed BENN approach along with six other arti fi cial intelligent methods, such as Backpropagation Neural Network (BPNN), Radial Basis Function Neural Network (RBFNN), Generalised Regression Neural Network (GRNN), Group Method of Data Handling (GMDH), Least Squares Support Vector Machine (LSSVM) and Support Vector Machine (SVM). The study also implemented the standard Multiple Linear Regression (MLR) for comparison purposes. The statistical analysis carried out revealed that the BENN performed better than the other investigated methods. Thus, the BENN achieved very promising testing results of 1.619 dB, 3.076%, 0.0925%, 0.911 and 82.956% for root mean squared error (RMSE), mean absolute percentage error (MAPE), normalised root mean squared error (NRMSE), correlation coef fi cient ( R ) and variance accounted for (VAF). The implemented BENN can be useful in managing noise from mine blasting using site speci fi c data.
{"title":"Blast-Induced Noise Level Prediction Model Based on Brain Inspired Emotional Neural Network","authors":"V. Temeng, Y. Ziggah, Clement Kweku Arthur","doi":"10.46873/2300-3960.1043","DOIUrl":"https://doi.org/10.46873/2300-3960.1043","url":null,"abstract":"Although a major portion of the emitted energy from mine blast is sub-audible (lower frequency), there exist a component that is audible (high frequencies from 20 Hz to 20 KHz) and as such within the range of human hearing as noise. Unlike blast air overpressure (low frequency occurrence), noise prediction from mine blasting has received little scholarly attention in mining sciences. Noise from mine blast is considered a major detrimental blasting effect and can be a menace to nearby residents and workers in the mine. In this paper, a blast-induced noise level prediction model based on Brain Inspired Emotional Neural Network (BENN) is presented. The objective of this paper was to investigate the implementation possibility of the proposed BENN approach along with six other arti fi cial intelligent methods, such as Backpropagation Neural Network (BPNN), Radial Basis Function Neural Network (RBFNN), Generalised Regression Neural Network (GRNN), Group Method of Data Handling (GMDH), Least Squares Support Vector Machine (LSSVM) and Support Vector Machine (SVM). The study also implemented the standard Multiple Linear Regression (MLR) for comparison purposes. The statistical analysis carried out revealed that the BENN performed better than the other investigated methods. Thus, the BENN achieved very promising testing results of 1.619 dB, 3.076%, 0.0925%, 0.911 and 82.956% for root mean squared error (RMSE), mean absolute percentage error (MAPE), normalised root mean squared error (NRMSE), correlation coef fi cient ( R ) and variance accounted for (VAF). The implemented BENN can be useful in managing noise from mine blasting using site speci fi c data.","PeriodicalId":37284,"journal":{"name":"Journal of Sustainable Mining","volume":"33 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83697428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A novel infectious corona virus disease (COVID-19) was identified in the month of December 2019. It has now been announced as a worldwide pandemic by theWorld Health Organization. COVID-19 pandemic has positive impacts on the environmental pollutants. Inpresentwork,Coalfield areas of JhariaCoalfields (JCF), India have been takenas a case study to evaluate the effect of the lockdown on air quality at 10 locations. This study had been selected to estimate the reduction in concentration of pollutants like PM10, PM2.5, SO2, andNOx during 3 Seasons (summer, Post-Monsoon andwinter season) in the year 2019 in comparison to the concentration during the lockdown period i.e. from April 2020 to June 2020. The study areas selected was as fire affected and non-fire affected areas of Jharia Coalfield to identify the contribution of pollutants in the mining area to establish the baseline concentration of Business as usual (BAU) vs. the lockdown condition. The average reduction in concentration of PM10, PM2.5, SO2 and NOx was observed as 18%, 14%, 22% and 26% respectively during the lockdown period in comparison with the annual average concentration. As observed, the AQI value at the selected monitoring sites in JCF was 1.5 times higher in comparison to the lockdown period. This study will provide the confidence to the regulatory body for strict implementation of the applicable air quality standard/policies in the mining areas. The study will also provide confidence to the regulatory body in making emission control strategies for improvement of environmental conditions and human health.
{"title":"COVID-19: A Spectio-temporal analysis of Air quality status in Coking Coalfields of India due to nationwide lockdown in India","authors":"Amarjeet Singh Mr., G. Dr.","doi":"10.46873/2300-3960.1029","DOIUrl":"https://doi.org/10.46873/2300-3960.1029","url":null,"abstract":"A novel infectious corona virus disease (COVID-19) was identified in the month of December 2019. It has now been announced as a worldwide pandemic by theWorld Health Organization. COVID-19 pandemic has positive impacts on the environmental pollutants. Inpresentwork,Coalfield areas of JhariaCoalfields (JCF), India have been takenas a case study to evaluate the effect of the lockdown on air quality at 10 locations. This study had been selected to estimate the reduction in concentration of pollutants like PM10, PM2.5, SO2, andNOx during 3 Seasons (summer, Post-Monsoon andwinter season) in the year 2019 in comparison to the concentration during the lockdown period i.e. from April 2020 to June 2020. The study areas selected was as fire affected and non-fire affected areas of Jharia Coalfield to identify the contribution of pollutants in the mining area to establish the baseline concentration of Business as usual (BAU) vs. the lockdown condition. The average reduction in concentration of PM10, PM2.5, SO2 and NOx was observed as 18%, 14%, 22% and 26% respectively during the lockdown period in comparison with the annual average concentration. As observed, the AQI value at the selected monitoring sites in JCF was 1.5 times higher in comparison to the lockdown period. This study will provide the confidence to the regulatory body for strict implementation of the applicable air quality standard/policies in the mining areas. The study will also provide confidence to the regulatory body in making emission control strategies for improvement of environmental conditions and human health.","PeriodicalId":37284,"journal":{"name":"Journal of Sustainable Mining","volume":"12 1","pages":"243-253"},"PeriodicalIF":1.0,"publicationDate":"2021-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87341759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Piotr Bortnowski, A. Nowak-Szpak, Maksymilian Ozdoba, R. Król
This paper explores the possibilities of using an acoustic camera as a tool that allows the verification of the correct construction and operation of individual elements of a belt conveyor. Based on the simultaneously recorded components e a video camera and measuring microphones, the sound pressure level map of the belt conveyor was created. The tests were carried out in laboratory conditions and covered the location and identification of individual noise sources. The verification consists not only of searching for dominant sound sources, but above all, of searching for frequencies in the analysed spectrum that should not occur during their proper operation. The tests allow for the identification of frequencies and the determination of the sound pressure level for three noise sources: the electric motor noise, the idler roll bearing noise as well as the noise on the tail pulley caused by belt misalignment.
{"title":"The Acoustic Camera as a Tool to Identify Belt Conveyor Noises","authors":"Piotr Bortnowski, A. Nowak-Szpak, Maksymilian Ozdoba, R. Król","doi":"10.46873/2300-3960.1036","DOIUrl":"https://doi.org/10.46873/2300-3960.1036","url":null,"abstract":"This paper explores the possibilities of using an acoustic camera as a tool that allows the verification of the correct construction and operation of individual elements of a belt conveyor. Based on the simultaneously recorded components e a video camera and measuring microphones, the sound pressure level map of the belt conveyor was created. The tests were carried out in laboratory conditions and covered the location and identification of individual noise sources. The verification consists not only of searching for dominant sound sources, but above all, of searching for frequencies in the analysed spectrum that should not occur during their proper operation. The tests allow for the identification of frequencies and the determination of the sound pressure level for three noise sources: the electric motor noise, the idler roll bearing noise as well as the noise on the tail pulley caused by belt misalignment.","PeriodicalId":37284,"journal":{"name":"Journal of Sustainable Mining","volume":"32 2 1","pages":"286-294"},"PeriodicalIF":1.0,"publicationDate":"2021-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82762658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The paper presents an evaluation of methane production from coal seams. The Warszowice-Pawłowice P ołnoc deposit was selected for numerical modelling of methane production. The numerical model was made for a fragment of this deposit of about 2 km. The numerical model was constructed for 6 seams. Three deposits were selected for simulation of methane production. Three horizontal boreholes were designed within the model area, referring to the existing Suszec19 borehole. A number of simulations related to methane production from the selected deposits were performed. They included different variants of the number of boreholes and also took into account the z-pinnate method. The analyses proved that the most advantageous is the production of 3 directional boreholes simultaneously with the z-pinnate method. For this variant the degree of methane production was 21.9% of the estimated resources.
本文对煤层产甲烷进行了评价。选择Warszowice-Pawłowice P ołnoc矿床进行甲烷产量的数值模拟。该数值模型是针对该矿床中约2公里的一块碎片建立的。建立了6个煤层的数值模型。选取3个矿床进行甲烷生产模拟。参考现有的Suszec19井眼，在模型区域内设计了三个水平井眼。进行了一些与选定矿床的甲烷产量有关的模拟。他们包括钻孔数量的不同变体，并考虑了z-羽状方法。分析表明，采用z-羽状方法同时开采3个定向井最为有利。该变体产甲烷程度占估计资源量的21.9%。
{"title":"Optimization of the Distribution of Drilling Boreholes in Methane Production from Coal Seams","authors":"Anna Wątor, J. Chećko, Tomasz Urych","doi":"10.46873/2300-3960.1024","DOIUrl":"https://doi.org/10.46873/2300-3960.1024","url":null,"abstract":"The paper presents an evaluation of methane production from coal seams. The Warszowice-Pawłowice P ołnoc deposit was selected for numerical modelling of methane production. The numerical model was made for a fragment of this deposit of about 2 km. The numerical model was constructed for 6 seams. Three deposits were selected for simulation of methane production. Three horizontal boreholes were designed within the model area, referring to the existing Suszec19 borehole. A number of simulations related to methane production from the selected deposits were performed. They included different variants of the number of boreholes and also took into account the z-pinnate method. The analyses proved that the most advantageous is the production of 3 directional boreholes simultaneously with the z-pinnate method. For this variant the degree of methane production was 21.9% of the estimated resources.","PeriodicalId":37284,"journal":{"name":"Journal of Sustainable Mining","volume":"22 1","pages":"272-285"},"PeriodicalIF":1.0,"publicationDate":"2021-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76157512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Environmental economics is increasingly being used in project appraisals, environmental liability estimates and design of market-based instruments. Mining, an actor capable of causing adverse effects on the environment, human health and well-being, has already been affected by these developments, at a great extent. Up to date, several research studies have been carried out to monetise the externalities of mining projects. Nevertheless, a systematic review of these publications has not been carried out, yet. This paper aims to fill this gap in the literature by investigating (i) the main non-market valuation techniques used; (ii) the main external costs or benefits of mining projects monetised; and (iii) the monetary estimates of mining-related externalities. The analysis shows that practically all economic valuation techniques have been implemented towards assessing, in monetary terms, the mining impacts on the environment. However, the findings from the statistical analysis reveal a wide range of monetary estimates, which are attributed not only to the valuation methods and assumptions used but also to the specific characteristics of the mining projects in question. Also, the research draws directions for future work, as the analysis of the published studies indicates areas of limited availability of estimates or high heterogeneity between the available estimates.
{"title":"A systematic review of the use of environmental economics in the mining industry","authors":"M. Menegaki, D. Damigos","doi":"10.46873/2300-3960.1034","DOIUrl":"https://doi.org/10.46873/2300-3960.1034","url":null,"abstract":"Environmental economics is increasingly being used in project appraisals, environmental liability estimates and design of market-based instruments. Mining, an actor capable of causing adverse effects on the environment, human health and well-being, has already been affected by these developments, at a great extent. Up to date, several research studies have been carried out to monetise the externalities of mining projects. Nevertheless, a systematic review of these publications has not been carried out, yet. This paper aims to fill this gap in the literature by investigating (i) the main non-market valuation techniques used; (ii) the main external costs or benefits of mining projects monetised; and (iii) the monetary estimates of mining-related externalities. The analysis shows that practically all economic valuation techniques have been implemented towards assessing, in monetary terms, the mining impacts on the environment. However, the findings from the statistical analysis reveal a wide range of monetary estimates, which are attributed not only to the valuation methods and assumptions used but also to the specific characteristics of the mining projects in question. Also, the research draws directions for future work, as the analysis of the published studies indicates areas of limited availability of estimates or high heterogeneity between the available estimates.","PeriodicalId":37284,"journal":{"name":"Journal of Sustainable Mining","volume":"58 1","pages":"254-271"},"PeriodicalIF":1.0,"publicationDate":"2021-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73978920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The article presents the results of works concerning evaluation of undeveloped deposits in the Upper Silesian Coal Basin and an estimation of hard coal reserves which can be developed by 2050. Evaluation of hard coal deposits was established on criterions choice and their score determination. On the basis of obtained the final score and after consultations with experts in the field of hard coal mining, there were selected three areas of undeveloped deposits with the amount of about 1.99 Gt (billion metric tons) of anticipated economic resources which can extend the coal reserve base located in the direct vicinity of operating hard coal mines. Additionally, one undeveloped coal deposit with estimated resources amounts to about 1.15 Gt was selected as a potential deposit whose resources could be included in the reserves of operating mines, up to the depth of 1,500metres. Deposit areas were selected and hard coal reserves were estimated with a view to building new coal mines. For O swięcim-Polanka deposit, there was built a 3D geological model with estimated the amount of 924Mt (million metric tons) of anticipated economic resources of coal. An example of a deposit development with ventilation, extraction and transport/haulage underground roadways connecting coal seams with the surface are presented. The designed mine working was placed in the 3D geological deposit model which is a useful tool for designing spatial deposit management.
{"title":"Evaluation of undeveloped hard coal deposits and estimation of hard coal reserves in the Upper Silesian Coal Basin, Poland","authors":"Tomasz Urych, J. Chećko, Marek Rosa, Anna Wątor","doi":"10.46873/2300-3960.1026","DOIUrl":"https://doi.org/10.46873/2300-3960.1026","url":null,"abstract":"The article presents the results of works concerning evaluation of undeveloped deposits in the Upper Silesian Coal Basin and an estimation of hard coal reserves which can be developed by 2050. Evaluation of hard coal deposits was established on criterions choice and their score determination. On the basis of obtained the final score and after consultations with experts in the field of hard coal mining, there were selected three areas of undeveloped deposits with the amount of about 1.99 Gt (billion metric tons) of anticipated economic resources which can extend the coal reserve base located in the direct vicinity of operating hard coal mines. Additionally, one undeveloped coal deposit with estimated resources amounts to about 1.15 Gt was selected as a potential deposit whose resources could be included in the reserves of operating mines, up to the depth of 1,500metres. Deposit areas were selected and hard coal reserves were estimated with a view to building new coal mines. For O swięcim-Polanka deposit, there was built a 3D geological model with estimated the amount of 924Mt (million metric tons) of anticipated economic resources of coal. An example of a deposit development with ventilation, extraction and transport/haulage underground roadways connecting coal seams with the surface are presented. The designed mine working was placed in the 3D geological deposit model which is a useful tool for designing spatial deposit management.","PeriodicalId":37284,"journal":{"name":"Journal of Sustainable Mining","volume":"57 1","pages":"230-242"},"PeriodicalIF":1.0,"publicationDate":"2021-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90945808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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