Journal of Sustainable Mining最新文献_第10页

New research on a case of Linear Discontinuous Ground Deformation (LDGD) 线性不连续地面变形(LDGD)的新研究

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Journal of Sustainable Mining Pub Date : 2020-12-05 DOI: 10.46873/2300-3960.1018

A. Kowalski, Bartosz Apanowicz, Piotr Polanin

{"title":"New research on a case of Linear Discontinuous Ground Deformation (LDGD)","authors":"A. Kowalski, Bartosz Apanowicz, Piotr Polanin","doi":"10.46873/2300-3960.1018","DOIUrl":"https://doi.org/10.46873/2300-3960.1018","url":null,"abstract":"LDGD is defined as surface fissures, steps as well as structures formed by them in the form of several steps, thresholds, ditches, and flexure. The paper presents a case study of formed LDGD e the origin, and possible methods to assess its occurrence on the basis of the research carried out in the Central Mining Institute (Poland). The authors showed that the presence of LDGD leads not only to the horizontal strain but also contributes to the formation of vertical curvatures of terrain that cause fissures in the near-surface layer of the rock mass in the areas with a thick layer of tertiary claystones and a thin layer of Quaternary strata. The accumulated experience also indicates that there is an influence of other mining factors, such as the interval between operations, face advance, and direction of operation, which may contribute to the occurrence of LDGD. Moreover, the authors pointed to the fact that predicting of LDGD is problematic and complex and is subject to uncertainty. The authors showed that both of LDGD methods prediction, when first of them is based on horizontal strains index and second one is points method, have good verifiability in practice.","PeriodicalId":37284,"journal":{"name":"Journal of Sustainable Mining","volume":"94 1","pages":"6"},"PeriodicalIF":1.0,"publicationDate":"2020-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78807035","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}

引用次数: 1

Improvement of the effectiveness of greywacke crushing process by applying an impact crusher in quarry for the production of railway ballast 利用冲击式破碎机在采石场生产铁路道砟，提高了灰尾破碎工艺的效率

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Journal of Sustainable Mining Pub Date : 2020-11-09 DOI: 10.46873/2300-3960.1017

Krzysztof Kurus, Karolina Jąderko-Skubis

引用次数: 1

Life cycle assessment to demonstrate how automation improves the sustainability performance of an underground mining operation 生命周期评估，展示自动化如何提高地下采矿作业的可持续性绩效

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Journal of Sustainable Mining Pub Date : 2020-11-06 DOI: 10.46873/2300-3960.1016

K. Moreau, Corey A Laamanen, R. Bose, H. Shang, J. A. Scott

{"title":"Life cycle assessment to demonstrate how automation improves the sustainability performance of an underground mining operation","authors":"K. Moreau, Corey A Laamanen, R. Bose, H. Shang, J. A. Scott","doi":"10.46873/2300-3960.1016","DOIUrl":"https://doi.org/10.46873/2300-3960.1016","url":null,"abstract":"The worldwide move to introduce more automation into underground metal ore mining is currently aimed at improving both operational productivity and safety. A comparative life cycle assessment (LCA) was used as a novel approach to determine the beneficial impacts automation can also have on environmental performance, using data collected on mine site productivity and energy consumption. The LCA looked at four impact categories: global warming potential, acidification, eutrophication, and human toxicity. When comparing automated equipment to their traditional manual counterpart, all four impact categories experienced a reduction with automation and a subsequent improvement in sustainability performance. Global warming potential, for example, decreased by 18.3% over the mine life period, or 3.7 kg of carbon dioxide equivalent (CO2 eq.) per tonne of ore extracted. Environmental impact reductions were due primarily to lower diesel fuel consumption in the loading and haulage processes as well as a 27% shorter operational mine life leading to less years of mine and mine camp maintenance.","PeriodicalId":37284,"journal":{"name":"Journal of Sustainable Mining","volume":"46 1","pages":"4"},"PeriodicalIF":1.0,"publicationDate":"2020-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82095961","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}

引用次数: 2

Exergy life cycle assessment indicators in colombian gold mining sector 哥伦比亚金矿开采部门的能源生命周期评价指标

IF 1

Journal of Sustainable Mining Pub Date : 2020-10-14 DOI: 10.46873/2300-3960.1013

N. Cano, Christian Hasenstab, H. I. Velásquez

{"title":"Exergy life cycle assessment indicators in colombian gold mining sector","authors":"N. Cano, Christian Hasenstab, H. I. Velásquez","doi":"10.46873/2300-3960.1013","DOIUrl":"https://doi.org/10.46873/2300-3960.1013","url":null,"abstract":"Abstract Thermodynamic methods, such as exergy analysis allow the assessment of environmental load (environmental impacts), by calculating the entropy generated or exergy destroyed due to the use of renewable and non-renewable resources along the entire production chain. In this research, exergy analysis will be approached as an extension of LCA to ExLCA (Exergy Life Cycle Assessment), as complementary tools, for sustainability assessment of two gold mining systems in Colombia: open-pit and alluvial mining. It is quantified exergy life cycle efficiencies; Cumulative Energy/ Exergy Demand, by distinguishing between renewable and non-renewable resources used in the process. The energy contained in renewable and non-renewable resources, interpreted as a measure of its utility potential, and which inefficient use generates waste streams with an exergy content that may be a measure of its potential to cause environmental damage. For open-pit mining 53% of exergy consumed comes from fossil energy, and 26% of energetic use of water, while in alluvial mining, 94% of exergy flow comes from water as a resource used within process activities. In order to reduce the environmental impact associated with gold generation life cycle described in this study, four strategies should be implemented; 1) Increasing efficiency, by reducing the exergy required in tails and extraction stages in open-pit mining process and, casting and molding stage in alluvial mining process, where large exergy supplies are required. 2) Increasing efficiency through the reduction of exergy emissions and residues in casting and molding stage in alluvial mining, and stripping stage in open-pit mining. 3) Using external exergy resources, such as renewable resources from nature (solar, wind, hydraulic). 4) Applying the concept of circular economy, which implies the reduction in consumption of resources.","PeriodicalId":37284,"journal":{"name":"Journal of Sustainable Mining","volume":"60 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84640119","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}

引用次数: 7

True cost of coal: coal mining industry and its associated environmental impacts on water resource development 煤炭的真实成本:煤炭开采工业及其对水资源开发的相关环境影响

IF 1

Journal of Sustainable Mining Pub Date : 2020-10-14 DOI: 10.46873/2300-3960.1012

Noshin Masood, K. Hudson-Edwards, A. Farooqi

{"title":"True cost of coal: coal mining industry and its associated environmental impacts on water resource development","authors":"Noshin Masood, K. Hudson-Edwards, A. Farooqi","doi":"10.46873/2300-3960.1012","DOIUrl":"https://doi.org/10.46873/2300-3960.1012","url":null,"abstract":"Coal is a strategic and essential resource that ensures quality of life, energy security and sustainable development. Being the cheapest source of energy, it is the second after oil that is used to generate 40% of the world's electricity. However, traditional and conventional coal fuel extraction can threaten human health bycontaminating air and water, harming land, and contributing to global warming. The environmental impacts associated with conventional methods of coal mining and consumption can affect all components of the environment, and these impacts may be beneficial or harmful, permanent or temporary, repairable or irreparable, and reversible or irreversible in nature. These effects require considering of changing the production and consumption of coalwithin a technological framework. Coal mining operationscan cause both quantitative and qualitative impacts on water systems in and around mining areas. This paper reviews the impacts of coal mining on water resource development. Land subsidence, disruption of hydrological channels, flooding, and contamination of water resources and depletion of water table are the major measurable impacts of mining activity on the hydrological environment.","PeriodicalId":37284,"journal":{"name":"Journal of Sustainable Mining","volume":"7 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90957477","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}

引用次数: 18

Evaluation of the extractive gold process: open-pit mining through exergy analysis 通过火用分析评价露天开采黄金工艺

IF 1

Journal of Sustainable Mining Pub Date : 2020-10-14 DOI: 10.46873/2300-3960.1014

H. I. Velásquez, C. Loaiza, Christian Hasenstab, N. Cano

{"title":"Evaluation of the extractive gold process: open-pit mining through exergy analysis","authors":"H. I. Velásquez, C. Loaiza, Christian Hasenstab, N. Cano","doi":"10.46873/2300-3960.1014","DOIUrl":"https://doi.org/10.46873/2300-3960.1014","url":null,"abstract":"The Colombian mining sector is characterized by the production of coal, nickel, emeralds, gold, and construction materials. It is considered by the National Development Plan of Colombia 2018e2022 as an economic agent that boosts development in the region and one that requires the strengthening of its policies and environmental liability. Therefore, this paper aims to show the importance of implementing methodologies based on the logic of nature (exergy) that objectively indicate the environmental impact of an extractive gold activity, such as open-pit gold mining. The extractive activity or process to be studied consists of the following stages: topsoil removal by using machinery and explosives to create craters and to access the mineral present in the subsoil; the physical transformation of the extracted material through crushing, grinding, gravimetric separation, flotation, leaching, adsorption, elution, and electrodeposition, along with smelting and casting to obtain gold and silver ingots. Thus, this paper analyzes the exergy performance of each unit process of the open-pit extractive process. The obtained results are used in a sensitivity analysis, which determines the system efficiency, by assuming the increase of gold in the extracted material in the exploitation stage, by using the same supplies and input of the current process. In other cases, the open-pit mining process is analyzed by changing its technologies in the mining process and assuming that this change reduces the inlet ore to 60%, by discarding 40% of material without gold and by reducing supply consumption by 25%. By improving the system efficiency, the exergy destroyed is reduced and the emissions to the environment diminish. Therefore, this method may be implemented as a basic guideline when it comes to decision-making processes in the planning of the extractive processes by integrating the environmental component with gold production.","PeriodicalId":37284,"journal":{"name":"Journal of Sustainable Mining","volume":"97 7 1","pages":"3"},"PeriodicalIF":1.0,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80940675","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}

引用次数: 5

Alternative methodology to determine effective coefficient of methane diffusion in coal 确定煤中甲烷有效扩散系数的替代方法

IF 1

Journal of Sustainable Mining Pub Date : 2020-10-09 DOI: 10.46873/2300-3960.1008

Henryk Koptoń

引用次数: 0

In search of a future for mining: participative scenarios for Colombia 寻找采矿业的未来:哥伦比亚的参与性方案

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Journal of Sustainable Mining Pub Date : 2020-10-09 DOI: 10.46873/2300-3960.1007

S. Arango-Aramburo, Ricardo A. Smith, Patricia Jaramillo, Y. Olaya, Adrian Saldarriaga, O. J. Restrepo, Yuly Arboleda, Carla Rua, Sebastián Bernal, Pablo E. Londono, E. Larsen

引用次数: 1

Mineralogical variations with the mining depth in the Congo Copperbelt: technical and environmental challenges in the hydrometallurgical processing of copper and cobalt ores 刚果铜带矿物学变化与开采深度:铜和钴矿石湿法冶金加工中的技术和环境挑战

IF 1

Journal of Sustainable Mining Pub Date : 2020-10-09 DOI: 10.46873/2300-3960.1009

Michel Shengo Lutandula, W. Kitobo, M. Kime, M. Mambwe, T. K. Nyembo

{"title":"Mineralogical variations with the mining depth in the Congo Copperbelt: technical and environmental challenges in the hydrometallurgical processing of copper and cobalt ores","authors":"Michel Shengo Lutandula, W. Kitobo, M. Kime, M. Mambwe, T. K. Nyembo","doi":"10.46873/2300-3960.1009","DOIUrl":"https://doi.org/10.46873/2300-3960.1009","url":null,"abstract":"For a long time in the Democratic Republic of Congo, the mining of ores for the production of copper cathodes and salts of cobalt was mostly conducted in the near-surface oxidized mineralization of the Congo Copperbelt. An important part of this mineralization is found in geological settings where copper and cobalt mainly exist as mixtures of oxides and sulfides. With the depletion of surface-rich minerals, mining is taking place at depths where sulfide minerals are prevalent. Using current technologies, the hydrometallurgical processing of ores with high levels of sulfide minerals results in poor metal recovery due to their retention in process wastes. These mineral wastes have the propensity to lead to Acid Mine Drainage (AMD) when exposed to rainfall and atmospheric air. Therefore, major changes in the technologies implemented will be needed in order to guarantee higher process efficiencies while endeavoring to uphold environment safeguarding reinforcement. This work aimed to demonstrate the urgency of updating the hydrometallurgical technologies implemented for the processing of coppercobalt ores with an emphasis put on minimizing the environmental footprint of process wastes. Four copper-cobalt deposits and downstream hydrometallurgical processes were surveyed to get a better understanding of how changes in mineralization occurring in the deposits will influence the processing Q3 technologies and practices during the management of process wastes.","PeriodicalId":37284,"journal":{"name":"Journal of Sustainable Mining","volume":"2010 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2020-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86282222","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}

引用次数: 4

Recovery and repurposing of thermal resources in the mining and mineral processing industry 采矿业和矿物加工业热资源的回收和再利用

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Journal of Sustainable Mining Pub Date : 2020-10-09 DOI: 10.46873/2300-3960.1010

Shannon H. McLean, J. Chenier, Sari Muinonen, Corey A Laamanen, J. A. Scott

引用次数: 2