Relevant bibliographies by topics / Mine and Metal Company

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
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Academic literature on the topic 'Mine and Metal Company'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Mine and Metal Company"

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Garinas, Wahyu wahyu. "THE IMPACT OF COVID-19 PANDEMIC ON METAL MINERAL COMMODITIES IN INDONESIA AND THEIR MITIGATION IN MINING ACTIVITIES." Jurnal Sains dan Teknologi Mitigasi Bencana 15, no. 2 (December 30, 2020): 123–30. http://dx.doi.org/10.29122/jstmb.v15i2.4461.

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Abstract The Covid-19 pandemic in 2020, has affected all mining sectors. The price of mining materials index is very low due to the Covid-19 pandemic and also when compared to other pandemics such as SARS, HN1, and Ebola. The price of the metal index such as iron, aluminum, nickel, zinc, copper) almost all fell and only high gold metals are increasingly expensive. The large mining companies continue their production and they use health protocols. For the continuity of mining operations, the company creates stages and strategies in mining operations (teamwork schedule, employee location, working time, number of workers, evacuation of employees). For the continuity of the company's operations, the company plans: responding to an emergency situations (pandemic), build the company's resilience, recover the company from impact, develop an action plan and build the foundation of the company to rise in the new normal time. The company conducts mitigation and protection individually and in groups and creates health campaigns digitally. In mining operations, the company develops its operational activities by implementing health protocols such as avoiding many people and making mine operational plans that follow health protocols. Keywords: Covid-19 pandemic, mineral commodity, index value, health mitigation.
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Irawan, Susan Nadya, Idiannor Mahyudin, Fakhrur Razie, and Susilawati Susilawati. "KAJIAN PENANGGULANGAN AIR ASAM TAMBANG PADA SALAH SATU PERUSAHAAN PEMEGANG IJIN USAHA PERTAMBANGAN DI DESA LEMO, KABUPATEN BARITO UTARA, KALIMANTAN TENGAH." EnviroScienteae 12, no. 1 (June 14, 2016): 50. http://dx.doi.org/10.20527/es.v12i1.1100.

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This study aims to know the factors that cause the formation of Acid Mine Water, to analyze the methods of prevention of acid mine drainage has been running effectively, to analyze how to prevent the formation of acid mine water at the research area. This research was conducted atLemovillage,North Barito Regency. These results indicate the analysis of water quality in the company with an indication acidic low pH values and high metal values. It is supported by soil pH test results showed low pH, especially on the layer in direct contact or close to coal. Sources of acid mine drainage at the company are from the oxidation of water and oxygen on the wall of rock at pit, water from the dumping area, water flowing from the temporary stockpile into the settling pond 2. From these, we can conclude the results. Recommendations prevention of acid mine drainage can be done by moving the location of the temporary stockpile in accordance with, more effective functioning of sump, controlling the movement of acidic water that has formed, accommodate and neutralize the acidic water that has formed, forming a layer of dry cover, separating the flow of water is not acidic and acidic
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Zhao, Yuan, Guoyan Zhao, Jing Zhou, Dianfei Pei, Weizhang Liang, and Ju Qiu. "What Hinders the Promotion of the Green Mining Mode in China? A Game-Theoretical Analysis of Local Government and Metal Mining Companies." Sustainability 12, no. 7 (April 8, 2020): 2991. http://dx.doi.org/10.3390/su12072991.

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China is currently trying to reduce the environmental impact of metal mining operations by promoting green mining. However, conflicts of interest between the central government, local governments, and metal mining companies often negatively affect the implementation of related policies. This paper conducted a theoretical analysis of the game mechanism between local governments and metal mining companies to study the factors that influence their strategies. First, we summarize the various game model parameters, determine the strategies which the companies and local government can choose, and establish the game model for the companies and the local government. Second, we list the utility of the company and local government under all game outcomes and analyse their behavioral tendencies. Third, we discuss the impacts of various factors on the choice of their mining mode in detail. The behavioral analysis shows that the local government’s inclination to supervise a mine is negatively related to the supervision cost and positively related to the production scale of this mine; various factors influence the companies in their decision making, with the yield and comprehensive utilization rate of tailings and waste rocks have the greatest impact; the scale of mine production also affects the companies’ willingness to carry out technological innovation. Finally, we offer some suggestions for the promotion of green mining.
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Uchendu, U. I., E. Biose, and E. A. Ubuoh. "Assessment of Heavy Metal Concentration in Soil Impacted Mining-Overburden in Enyigba, Abakaliki, Ebonyi State, Nigeria." Journal of Applied Sciences and Environmental Management 24, no. 7 (August 7, 2020): 1169–73. http://dx.doi.org/10.4314/jasem.v24i7.7.

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This study assessed the concentration of selected heavy metals (Lead and Zinc) from surrounding soil of Royal Salt mining company, Enyigba in Abakaliki LGA, Ebonyi State. Soil samples were collected from nine (9) different locations at depths of 0-15 and 15-30cm. Two (2) samples were collected from each of the nine locations, making it total of eighteen (18) samples. Soil analysis carried out were particle size distribution, pH, available Phosphorus, total Nitrogen, Organic Carbon, organic matter, Calcium, Magnesium, Potassium, Sodium, exchangeable acidity, Aluminium, effective cation exchange capacity, base saturation and two selected heavy metals, Lead (Pb) and Zinc (Zn). Results shows that heavy metals were highest in soil around the disposal site of mine waste. The highest value of Pb and Zn was recorded on tailing down (TD) 14.82 and 25.33mg/kg at 0-15cm depth, 7.22 and 18.93mg/kg at 15-30cm depth respectively. The accumulation of Pb and Zn at the mining site (TD) may be due to mining activities, civil, industrial/anthropogenic activities going on around the site. This study recommends regular monitoring of heavy metal concentration in soil within the mining site and their disposal site in order to conform to international standards set by the WHO. Keywords: Abakaliki, Enyigba, Lead, Royal Salt Limited, Zinc
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Tost, Michael, Benjamin Bayer, Michael Hitch, Stephan Lutter, Peter Moser, and Susanne Feiel. "Metal Mining’s Environmental Pressures: A Review and Updated Estimates on CO2 Emissions, Water Use, and Land Requirements." Sustainability 10, no. 8 (August 14, 2018): 2881. http://dx.doi.org/10.3390/su10082881.

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The significant increase in metal mining and the inevitability of the continuation of this trend suggests that environmental pressures, as well as related impacts, have become an issue of global relevance. Yet the scale of the impact remains, to a large extent, unknown. This paper examines the mining sector’s demands on CO2 emissions, water use, as well as demands on land use focusing on four principal metals: iron, aluminium (i.e., bauxite ore), copper, and gold. These materials represent a large proportion of all metallic materials mined in terms of crude tonnage and economic value. This paper examines how the main providers of mining data, the United Nations, government sources of some main metal producing and consuming countries, the scientific literature, and company reports report environmental pressures in these three areas. The authors conclude that, in the global context, the pressure brought about by metal mining is relatively low. The data on this subject are still very limited and there are significant gaps in consistency on criteria such as boundary descriptions, input parameter definitions, and allocation method descriptions as well as a lack of commodity and/or site specific reporting of environmental data at a company level.
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Siregar, Ulfah Juniarti, and Roisatuz Zakiyah. "GROWTH OF FOUR TREE SPECIES ON MEDIA CONTAINING GOLD MINE TAILING OF PT ANTAM UBPE PONGKOR." Journal of Tropical Silviculture 7, no. 3 (December 28, 2016): S72—S76. http://dx.doi.org/10.29244/j-siltrop.7.3.s72-s76.

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PT Antam UBPE Pongkor is a gold mining company that produces waste in the from of tailing mud which contains heavy metal with sufficiently high concentration. The aim of this research was to study the growth of four types of plant, i.e. Casuarina junghuniana, Pinus merkusii, Melia azedarach, and Gmelina arborea in a media containing tailing mud. This research used a completely randomized factorial design with two factors, i.e. types of plant and media. Two kinds of media was used i.e. 1200g tailing and a mixture of 900g tailing and 300g compost. Growth parameters observed were plant diameter, height, number of leaf, leaf lenght and widht, total wet and dry biomass, root-shoot-ratio and number of stomata. Soil and plant analysis was done after four months of experiment. The results showed that plant types have significant effects on all parameters except root-shoot-ratio and plant height. Media types significantly affect plant diameter, wet and dry biomass. Interaction between plant types and media gave sifnificant effect on diameter, wet and dry biomass. G. arborea had the best growth response on all parameters except root-shoot-ratio and plant heigh. Its average diameter was 4.56 mm, leaf lenght 3.67 cm, leaf widht 3.000 cm, total wet biomass 50.21 g, total dry biomass 32.19 g and number of stomata is 89.Key words: C. junghuniana, G. arborea, metal, M. azedarach, tailing, P. merkusii.
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Park, Jonghoon, Eunhye Kwon, Euijin Chung, Ha Kim, Batbold Battogtokh, and Nam C. Woo. "Environmental Sustainability of Open-Pit Coal Mining Practices at Baganuur, Mongolia." Sustainability 12, no. 1 (December 27, 2019): 248. http://dx.doi.org/10.3390/su12010248.

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In this paper, we studied one of the largest coal mines in Mongolia, the Baganuur Coal Mine, in terms of environmental sustainability related to mining practices, with a focus on discharged water and waste sediments. The present quality and potential for future pollution were assessed. Based on World Health Organization and Mongolian guidelines, groundwater pumped from the mining operations could be used for drinking and domestic purposes. In addition, based on the Na absorption ratio, groundwater samples from GW-2 and GW-3 could be used as agriculture water supplies with salinity reduction, or used to grow halophytes as a measure for desertification control and pasture production. All waste soil samples appeared to have a desertification potential. Dust particles smaller than 150 μm comprised more than 80% of soil samples, which had arsenic levels higher than the Mongolian soil pollution standards. In addition, soil collected between coal seams (S-5) showed high sulphur content based on X-ray fluorescence (XRF) and scanning electron microscopy–energy dispersive X-ray (SEM-EDX) spectroscopy analyses, strong potential for producing acid mine drainage in the analysis of pH of net acid generation and net acid production potential, and potential for leaching of metals, such as Co. Therefore, the Baganuur Coal Mine requires soil pollution control measures to mitigate the risks of dust and desertification. In this perspective, mine groundwater could be used to reduce environmental stresses by supporting pasture crops such as halophytes on waste disposal sites, thereby preventing dust issues and desertification. Continuous efforts, including monitoring and enacting environmental management measures, are needed from both the mining company and the government to ensure sustainable mine development.
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Strbac Savic, Svetlana, Jasmina Nedeljkovic Ostojic, Zoran Gligoric, Cedomir Cvijovic, and Snezana Aleksandrovic. "Operational Efficiency Forecasting Model of an Existing Underground Mine Using Grey System Theory and Stochastic Diffusion Processes." Mathematical Problems in Engineering 2015 (2015): 1–18. http://dx.doi.org/10.1155/2015/610307.

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Forecasting the operational efficiency of an existing underground mine plays an important role in strategic planning of production. Degree of Operating Leverage (DOL) is used to express the operational efficiency of production. The forecasting model should be able to involve common time horizon, taking the characteristics of the input variables that directly affect the value of DOL. Changes in the magnitude of any input variable change the value of DOL. To establish the relationship describing the way of changing we applied multivariable grey modeling. Established time sequence multivariable response formula is also used to forecast the future values of operating leverage. Operational efficiency of production is often associated with diverse sources of uncertainties. Incorporation of these uncertainties into multivariable forecasting model enables mining company to survive in today’s competitive environment. Simulation of mean reversion process and geometric Brownian motion is used to describe the stochastic diffusion nature of metal price, as a key element of revenues, and production costs, respectively. By simulating a forecasting model, we imitate its action in order to measure its response to different inputs. The final result of simulation process is the expected value of DOL for every year of defined time horizon.
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Mpanza, Mbalenhle, Elhadi Adam, and Raeesa Moolla. "Dust Deposition Impacts at a Liquidated Gold Mine Village: Gauteng Province in South Africa." International Journal of Environmental Research and Public Health 17, no. 14 (July 8, 2020): 4929. http://dx.doi.org/10.3390/ijerph17144929.

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The windy season brings numerous community complaints for gold mining companies situated in the Witwatersrand due to windblown dust from partially rehabilitated tailings storage facilities (TSFs). For communities encroaching onto TSFs, windblown dust is perceived as a health hazard and an environmental challenge. In a study conducted in 2017 by the Lawyers for Human Rights, the community of a gold mine village perceived tailings storage facility 6 (TSF6) and other surrounding tailings storage facilities which are partially rehabilitated to be a health and socio-economic threat. Since 2013, when a nearby gold mining company was liquidated, this community has been complaining about dust fallout. To validate the claims made by the community this paper reports on the dust deposition impacts, and respiratory illnesses risk posed by wind-blown generated dust. The study conducts an air quality assessment using dispersion modelling of windblown dust. Surface material from the TSFs was sampled, analysed for silica and heavy metal content using X-ray fluorescence (XRF) and inductively coupled plasma-mass spectrometry (ICP-MS) respectively. This study finds that PM10 dust fallout, high in silica and uranium content, could potentially pose health threats to the surrounding community. The study further shows that dust deposition is the highest in July–October, with TSF6 posing a nuisance while TSF1 represents a potential health threat owing to its particle size distribution for the surrounding gold mine village community. Potential receptors of the air pollution by dust in this study area include neighbouring property owners, business owners of the nearby shopping centre, the school and the clinic. This study further finds that sudden mine closure due to mine liquidation results in unrehabilitated tailings storage facilities which exacerbates dust deposition.
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Bagatto, Giuseppe, and Joseph D. Shorthouse. "Biotic and abiotic characteristics of ecosystems on acid metalliferous mine tailings near Sudbury, Ontario." Canadian Journal of Botany 77, no. 3 (August 20, 1999): 410–25. http://dx.doi.org/10.1139/b98-233.

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INCO Ltd., a large mining company near Sudbury, Ont., deposits vast amounts of tailings on its property. These tailings contain elevated levels of Cu, Ni, and sulphides, and to curtail dust and acid drainage, INCO has undertaken a long-term project to cover its tailings with vegetation. Yearly amelioration of fresh tailings with limestone and fertilizer, followed by seeding with various grasses and herbs, transplanted conifers, and the later colonization of volunteer species of plants from adjoining forests, has resulted in the formation of ecosystems of varying age and complexity. To assess the long-term effectiveness of INCO's vegetation techniques, we studied floral diversity, attributes of developing soils, and the accumulation of Cu and Ni in various plant species growing on tailings at different stages of development. Habitat disturbance by tailings deposition, and its subsequent floral recolonizaton, is an example of "anthropogenic succession." Tailings that do not receive amelioration in the form of lime, fertilizer, and seeding remain free of vegetation, other than sparce clumps of the metal-tolerant grass Deschampsia caespitosa (L.) Beauv. Once amelioration begins, various species of grasses and herbs are able to subsist and within 8 years volunteer species begin to colonize. Substrate pH of dried tailings is less than 4 while the pH in upper horizons ranges from 5 to 6, increasing as the sites become more florally diverse; however, pH at lower depths remains less than 4. Substrate organic content in upper horizons at restored sites ranges from 4.5 to 5.0%. Water-soluble concentrations of Cu and Ni in upper horizons ranges from 1 to 5 µg/g dry mass, and 0.5 to 6 µg/g dry mass, respectively, and both metals decrease with increasing floral diversity. Levels of Ni increase at lower depths indicating greater substrate mobility. Levels of Cu and Ni are higher in plants from tailings than in those from control sites; however, concentrations do not decrease in plants from older and more florally diverse tailings sites. Root tissues contain significantly higher concentrations of Cu and Ni than aerial tissues. Monitoring air with moss plates indicates that dispersal of airborne metallic dust remains a problem.Key words: mine tailings, Sudbury, anthropogenic succession, copper, nickel, acid, monitoring.
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Dissertations / Theses on the topic "Mine and Metal Company"

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Hartley, Suzanne. "Remediation of abandoned metal mine drainage using dealginated seaweed." Thesis, Aberystwyth University, 2008. http://hdl.handle.net/2160/b9217acb-b8ad-4180-af12-a1627d7137c4.

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This thesis develops and demonstrates an innovative method for adsorbing metals from metal mine drainage in mid-Wales and northern Italy using dealginated seaweed (DS) as a biosorbent. The chemical composition of 15 mine drainages and two receiving waters in Wales was determined over a two year period in relation to precipitation and season. The waters were circum-neutral, iron-poor (<1 mg/L) but metal-rich, dominated by Zn ( 42 mg/L), Cu ( 188 μg/L), Cd ( 99 μg/L) and Pb ( 2.7 mg/L). The chemical composition varied throughout the year, but did not necessarily show clear seasonal variation, with Zn, Cd and Pb tending to show a winter maximum. The physico-chemical adsorption characteristics of the DS were determined. Over 80 % of Zn, Cd and Pb were removed from solution within 15 minutes of contact; adsorption was not affected by pH (between 3.3 and 6.6) nor by additional elements in solution. The adsorption capacity of the DS was Pb > Cd > Zn. The main removal mechanisms were determined to be adsorption and ion exchange with Ca, Na, Mg released from the DS surface. Treatment plants containing DS were deployed at three sites in mid-Wales and one site in Italy. In mid-Wales, Zn, Pb and Cd adsorption peaked within an hour (at ~98 %) associated with a significant release of Ca, Mg and Na. The DS adsorbed Pb > Cd > Zn, with the DS adsorbing ~1 % of its dry weight of Pb, ~0.01 % Cd and ~2 % Zn. The saturation of the DS was dependent on the mine drainage composition, with adsorption continuing for several months when low metal concentration (<1 mg/L) mine drainages were remediated. In Italy, acidic (~pH 2.5), metal-rich ( 120 mg/L Al, 420 mg/L Fe and 99 mg/L Cu) mine drainage required neutralisation and Fe-removal before entering the DS treatment plant to remove the remaining metals. The treatment plants improved the quality of mine drainage and reduced their impact on receiving water courses; the plant was designed to be a practical, low-cost, solution which uses a waste product (from the alginate industry). This thesis demonstrated a novel method for remediation of neutral, low Fe waters, and is applicable as a final ‘polish’ when acidic, Fe-rich water has been neutralised and the Fe removed.
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Batty, Lesley Claire. "Metal removal processes in wetlands receiving acid mine drainage." Thesis, University of Sheffield, 2000. http://etheses.whiterose.ac.uk/15045/.

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Jones, Ashley. "Trace metal dynamics in mine-impacted, circum-neutral streams." Thesis, University of Hull, 2014. http://hydra.hull.ac.uk/resources/hull:11405.

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Turner, David Bentley. "An assessment of Magic Metal Company." Online version, 1998. http://www.uwstout.edu/lib/thesis/1998/1998turnerd.pdf.

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Cutting, Jamie Paul. "Geochemical controls on trace metal behaviour in acid mine drainage." Thesis, University of Bristol, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.446257.

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Baxter, Helen Abigail. "Framework for remediation of rivers impacted by legacy metal mine pollution." Thesis, University of Hull, 2015. http://hydra.hull.ac.uk/resources/hull:13221.

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Seven percent of surface waters in England and Wales are impacted by pollution from abandoned non-ferrous metal mines. It is estimated that there are about five thousand five hundred of these. There is no legal liability to any party attached to abandoned metal mines in the UK if they ceased operation before 1999. Preventing pollution from entering river catchments from these sources can be expensive and public funds are limited in extent. These enduring sources of pollution are a significant impediment to compliance with the legislative requirements, such as the European Water Framework Directive. This thesis develops a framework for integrating pre-existing tools and methodologies to address this environmental problem: Environmental Impact Assessment (EIA), Life Cycle Impact Assessment (LCIA) and Payments for Ecosystem Services (PES). By fully quantifying the economic, social and environmental impacts of abandoned mine discharges and the net benefits of potential management interventions over different scales, it is proposed that the framework can provide a sustainable way forward for identifying appropriate cost-effective remedial interventions, identify sources of funding for remediation to take place through PES, while at the same time being sensitive to stakeholder concerns. To determine the effectiveness of this framework two phases of research have been undertaken. The first was a series of interviews with a range of key stakeholders with relevant knowledge and expertise, targeting key concerns and conflicts that arise in managing legacy pollution. The second was to apply the framework to a specific mine-impacted catchment to determine the effectiveness of the framework and an optimal solution for that site. Key findings of stakeholder interviews revealed the general positive attitude towards PES-schemes also discrepancies in knowledge between different sectors. Industrial representatives emphasised the likely need for regulation to initiate such processes. The potentially important role of stewardship and conservation organisations as “ethical brokers” for such schemes was highlighted, given their expertise at communicating and managing a range of stakeholder opinions. The application of the framework to the Hebden Beck catchment in North Yorkshire found that multiple small scale passive remediation at affected locations would be an optimal solution. The full costs of such systems are outweighed by the potential ecosystem service benefits of metal removal from upland streams. Fundamental to the acceptability and sustainability of the remedial solution was the requirement for habitat offsetting to be incorporated into the proposed works.
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Braungardt, Charlotte Barbara. "Metal biogeochemistry of a mine contaminated estuarine-coastal system in SW Spain." Thesis, University of Plymouth, 2000. http://hdl.handle.net/10026.1/1075.

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The aim of this project was to investigate the biogeochemistry and transport of metals in a river/estuarine system contaminated by acid mine drainage. The Rio Tinto and Rio Odiel drain a metalliferous mining area in the Iberian Pyrite Belt in the south-west of Spain. The pH values in the rivers were low (< 3) and dissolved metal concentrations were . extremely high, up to 2.6 mM Zn, 860 \M Cu, 6.0 jaM Cd and 72 nM U . The seasonal cycle of low precipitation and flash floods was identified as an important factor in generating the more severe contamination of the rivers with Fe, A l , Mn, Zn, Cu, N i , Co and Cd observed during autumn and winter, compared to spring and summer. The estuarine behaviour of dissolved Fe, Mn, Zn, Cu, N i , Co and Cd was primarily = controlled by pH. Apart from an addition of these metals from the sediment in the upper Tinto estuary, conservative mixing was observed up to pH ~ 5 (at S ~ 30), above which Fe, Mn, Zn, Cu, N i and Co were removed from solution. Voltammetric speciation studies showed that Cu complexing organic ligands (logK'cuL ~ 11-5, CL = 32 - 199 nM) in the estuary were saturated, and thermodynamic calculations indicated that the concentration of Cu^"^ reached values (pCu^"^ < 9) that are toxic to some marine and estuarine organisms. The estimation of fluxes indicated that the dissolved metal export from this system to thecoastal zone averages 101 d'^ Zn, 2.3 t d"' Cu, 180 kg d"^ N i and 236 kg d"^ Co, with higher contributions during wet, compared to the dry seasons. On-line measurements of Zn, Cu and N i in the Gulf of Cadiz revealed metal plumes associated with the Tinto/Odiel system and the Guadiana and Guadalquivir rivers. As a result of entrainment by the Atlantic Ocean surface current flowing into the Mediterranean Sea, the metal contamination in waters of the Gulf of Cadiz is transported south and eastward.
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Ekelund, Åsa. "Metal mobility and transport from an oil-shale mine, Lake Nõmmejärv, Estonia." Thesis, Stockholms universitet, Institutionen för naturgeografi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-195364.

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Mining activities have a large impact on the environment, for example by the release of heavy metals from acid mine drainage and erosion of mine waste. North-eastern Estonia has the largest commercially exploited oil-shale deposit in the world. Waste from the mining processes have led to contamination of groundwater and streams polluted by phenols, oil products, sulphates and heavy metals. This thesis concerns the metal mobility from oil-shale mines in north-eastern Estonia, through water flow in the drainage system directed into Lake Nõmmejärv, which acts as a sedimentation basin for the mining water. A sediment core along with lake bottom surface samples were retrieved and analysed for heavy metals associated with mining. Water samples were collected and analysed for TOC. The sedimentary records show distinctively the change with the high inflow of water. The analysis of heavy metal content does not suggest a high impact on the environment, possibly because of a buffering effect by the limestone bedrock. The contents of heavy metals are somewhat elevated compared to background contents in Swedish lake sediments, but only cadmium and nickel levels are in the range that can be hazardous for the survival of organisms.
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Lawson, Holly Marie. "Grassland Revegetation for Mine Reclamation in Southeast Arizona." Thesis, The University of Arizona, 2011. http://hdl.handle.net/10150/202934.

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Mine land reclamation techniques were tested in arid Southeast Arizona for their potential to enhance reclamation success on two sites at different elevations (1400- and 1650-meters above sea level) on two sandy loam soils (Arkose and Gila Conglomerate). Seedbed preparation (smooth or rough surface) and straw mulch treatments (surface mulch, mulch incorporated into the soil, or no mulch) were tested for their potential to establish vegetation and prevent erosion. Gila soil retained 12.9% more soil moisture than the Arkose soil and was preferred by the seed mix (Gila: 64.4 plants m⁻²; Arkose: 23.2 plants m⁻²). A rough surface with surface mulch was recommended. Gila soil was more susceptible to erosion likely because it contained smaller soil particles. Rock cover was associated with significantly (P=0.0138) reduced rate of soil movement (0.1588 cm soil loss or accumulation per 1 percent rock cover). Proper soil management can be critical for reclamation success.
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Jung, Myung Chae. "Heavy metal contamination of soils, plants, waters and sediments in the vicinity of metalliferous mines in Korea." Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.481221.

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Books on the topic "Mine and Metal Company"

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Company, Quebec Mines and Metal. L' asbeste: Quelques mots sur l'asbeste ; où on le trouve ; ses usages nombreux ; l'avenir de cette industrie ; ainsi qu'une description de la nouvelle compagnie incorporée d'asbeste formée récemment dans le comté de Beauce, province de Québec ... Montréal: Quebec Mines and Metal Co., 1995.

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Douglas, Allan. Trace metal chemistry in pyritic mine tailings. Sudbury, Ont: Laurentian University, 1993.

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Kenney, Jean M. Haulage-related accidents in metal and nonmetal surface mines. Washington, D.C: U.S. Dept. of the Interior, Bureau of Mines, 1993.

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Kenney, Jean M. Haulage-related accidents in metal and nonmetal surface mines. Washington, D.C: U.S. Dept. of the Interior, Bureau of Mines, 1993.

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Felsher, Dave. Electrowinning of metal: DETA complexes. Montréal, Qué: Dept. of Mining and Metallurgical Engineering, McGill University, 2000.

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McCabe, Olive. Wetland plants for Revegetation of Metal Mine Tailings. Dublin: University College Dublin, 1998.

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Geyer, Richard G. Magnetostatic measurements for mine detection. Boulder, Colo: National Institute of Standards and Technology, U.S. Dept. of Commerce, 1988.

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Massie, Helena. Production management in a metal processing company. Salford: University of Salford, 1996.

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Mitchell, Larry D. Metal mine bonding in Montana: Status and policy considerations. Helena, MT: Environmental Quality Council, 2004.

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Broomberg, Joachim. Development of magnetic carriers for metal ion removal: Joachim Broomberg. Montréal, Qué: [s.n.], 1998.

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Book chapters on the topic "Mine and Metal Company"

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Banerjee, Sudhish Chandra. "Metal Mine Fires." In Prevention and Combating Mine Fires, 348–55. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003211228-15.

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Dumakor-Dupey, N. K., S. Arya, D. Atambila, and M. Anselmi. "Numerical evaluation of a spot cooling technique for underground metal mines." In Mine Ventilation, 177–86. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003188476-18.

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Buaba, J. A., and A. J. Brickey. "Estimating diesel particulate matter using a predictive technique for use in underground metal mine production scheduling." In Mine Ventilation, 86–94. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003188476-9.

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Noble, Taryn L., Bernd Lottermoser, and Anita Parbhakar-Fox. "pH Testing Methods for Sulfidic Mine Wastes." In Environmental Indicators in Metal Mining, 199–210. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42731-7_11.

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Noble, Taryn L., Anita Parbhakar-Fox, Ron F. Berry, and Bernd Lottermoser. "Mineral Dust Emissions at Metalliferous Mine Sites." In Environmental Indicators in Metal Mining, 281–306. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42731-7_16.

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van Veen, Eleanor M., and Bernd Lottermoser. "Bioaccessibility Testing for Metals at Mine Sites." In Environmental Indicators in Metal Mining, 357–80. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42731-7_20.

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Noble, Taryn L., Ron F. Berry, Karsten Goemann, and Bernd Lottermoser. "Prediction of Mineral Dust Properties at Mine Sites." In Environmental Indicators in Metal Mining, 343–54. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42731-7_19.

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Paraszczak, Jacek, Kostas Fytas, and Marcel Laflamme. "Feasibility of Using Electric Trucks in Deep Metal Mines." In Mine Planning and Equipment Selection, 1265–75. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-02678-7_122.

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Statsenko, Larissa, and Nouné Sophie Melkoumian. "Modeling Blending Process at Open-Pit Stockyards: A Northern Kazakhstan Mining Company Case Study." In Mine Planning and Equipment Selection, 1017–27. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-02678-7_98.

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Peelman, S., Z. H. I. Sun, J. Sietsma, and Y. Yang. "Hydrometallurgical Extraction of Rare Earth Elements From Low Grade Mine Tailings." In Rare Metal Technology 2016, 17–29. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119274834.ch2.

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Conference papers on the topic "Mine and Metal Company"

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Argirakis, Anthony S. "Remote Control Jackleg Drills Reduce Operators’ Overall Noise Exposures." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-12833.

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Jackleg drills have proven to be a problem when it comes to overexposures to noise for coal miners as well as metal/nonmetal miners. These pneumatic drills are used to drill holes for roof bolting or blast holes in developmental and stoper mining. They are used when mining vertically or steeply inclined deposits. The “Leg” is a heavy metal support which allows the driller to keep the rig steady when collaring the hole as well as keeping it steady while drilling into the hard rock. Since drilling is done basically by hand, the operator remains in close proximity to the noise associated with the pneumatic hammer. Up until now, little has been done with the exception of Original Equipment Manufacturer (OEM) and retrofit mufflers to achieve compliance with the noise standards stated in Code of Federal Regulations (CFR) Title 30, part 62 for the drills of the type. Just recently an anthracite coal mining company, having noise problems associated with their jackleg drills, purchased a “Remote In-Stope Drill Rig” from a manufacturer in South Africa. A noise study was conducted by the Mine Safety & Health Administration (MSHA) and the cooperative mining company to determine the effectiveness of the remote control jackleg drill in reducing the operator’s overall noise exposure. The baseline test was conducted on the original jackleg drill. Once the new remote unit was received, it was tested as received from the manufacturer with their hammer and again with the company’s original hammer retrofitted to the drill rig. The company also made modifications to the 8 ft. hose extending it to 20 ft. to allow operation further from the noise source. The study was conducted to determine the effectiveness of the remote control unit in reducing not only the sound level, but also the overall noise dose. The unit was found to not only reduce the operator’s overall noise exposure when used with either hammer, but allowed drilling to be conducted from a location under permanently supported roof with no vibration on the operator’s hands.
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Davis, Leonard C., and Anthony J. Jackman. "Some Significant Highlights in Allison Regenerator Development." In ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-gt-503.

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Allison Engine Company has 26 years of experience in vehicular gas turbines with rotating disc regenerators for waste heat recovery including 7 different engine models ranging up to 350 hp. We have completed the first 140 hr of endurance testing on a one-piece extruded ceramic disc regenerator of 231 mm (9.1 in.) diameter. Our disc supplier is finalizing extrusion additives and firing schedule for a lithium aluminum silicate material with up to 85% mined mineral content for low cost. Unique Allison regenerator experience is cited as follows: first gas turbine with rotating regenerator in production, thermal cyclic strength loss of ceramic disc materials and cyclic oxidation of metal disc materials, regenerator leakage as low as 3.4%, metal regenerator time versus temperature ignition limits of various metals, and damping of friction-induced torsional vibration of regenerator discs.
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GELMANOVA, Zoya, and Olga KRIVTSOVA. "CUSTOMER ORIENTED APPROACH FOR DEVELOPMENT OF THE COMPANY." In METAL 2019. TANGER Ltd., 2019. http://dx.doi.org/10.37904/metal.2019.770.

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KARDAS, Edyta, and Rafał PRUSAK. "OPTIMIZATION OF ORDERS IN THE METAL INDUSTRY COMPANY." In METAL 2019. TANGER Ltd., 2019. http://dx.doi.org/10.37904/metal.2019.986.

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MALČIC, Tomáš, and Petr BESTA. "Multicriteria Inventory classification in the expedition warehouse of the metallurgical company." In METAL 2020. TANGER Ltd., 2020. http://dx.doi.org/10.37904/metal.2020.3645.

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De-qing Gan, Hong-jian Lu, and Chao Chen. "Three dimensional mechanical numerical analyzing on mine pass construction of metal mine." In 2011 International Conference on Computer Science and Service System (CSSS). IEEE, 2011. http://dx.doi.org/10.1109/csss.2011.5974994.

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Kalk, Forrest S., Drew Frey, Candace L. Kairies-Beatty, and Erika R. Elswick. "METAL CONTAMINATION IN SOILS RECEIVING ACID MINE DRAINAGE AT BULLION MINE (MONTANA)." In 50th Annual GSA North-Central Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016nc-275512.

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Fan, Ailong, Yaohong Sun, and Ping Yan. "Development of the metal mine detection technology." In 2015 IEEE Pulsed Power Conference (PPC). IEEE, 2015. http://dx.doi.org/10.1109/ppc.2015.7297012.

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Barham, Perry, Bryce Brown, Martine Fingerhut, and Patrick Porter. "Pipeline Integrity Analysis Based on Interdisciplinary Cooperation." In 2004 International Pipeline Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ipc2004-0184.

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For many years, BP Pipelines, North America has used high-resolution Magnetic Flux Leakage (MFL) in-line inspection (ILI) technology to help maintain the integrity of their pipelines. The improvements in this technology that now allow an Operator to make integrity decisions also bring challenges. Reports from ILI can list thousands, or even hundreds of thousands, of individual anomalies or features. When combined with data from NDT field measurements and existing pipe tallies, it can become overwhelming. Methods had to be developed to distill this information for further analysis. BP Pipelines NA encouraged cooperation between all parties involved in the integrity process to adapt reporting requirements and work procedures to provide the best available information for integrity analysis and to ensure continued improvements. This cooperation is a key part of the integrity equation and essential to a successful program. This paper presents an overview of the validation process undertaken on a 51 km (32-mile) section of 457 mm (18-inch) pipeline. This pipe section was inspected in 1999 and again in 2003 by the same inspection company. This provided an opportunity to evaluate improvements in inspection technology, assess repeatability of performance and develop an engineering based approach to review, analyze, and validate high-resolution metal loss MFL data. Field verification and data validation included the use of a several NDE techniques to acquire field measurements to overlay and compare to the ILI inspection data. Anomaly classification and distribution is examined and methods of selecting validation locations for future inspection developed. In addition to the primary goal outlined, the 2003 repair program provided an opportunity to evaluate the performance of the composite sleeve reinforcements applied in 1999, after 4 years of service.
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Deng, Yue-Guang, Jing Liu, and Yi-Xin Zhou. "Liquid Metal Based Mini/Micro Channel Cooling Device." In ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2009. http://dx.doi.org/10.1115/icnmm2009-82046.

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Effective heat dissipation is of great importance in many engineering fields. In this paper, we investigated a newly emerging method to significantly improve the cooling capability of micro channel devices, through implementing liquid metal with low melting point as the powerful coolant. A series of experiments with different working fluids and volume flow were performed, and the different cooling effects between liquid metal and water were compared. In order to better evaluate the cooling capability of liquid metal based micro channel cooling device, the hydrodynamic and heat transfer theory involved was discussed. The results indicated that, when the system operated in a relatively high velocity, micro channel cooling devices with liquid metal as coolant could produce higher convective heat transfer coefficient compared to those with traditional cooling fluids. And under the same pump power, not only the thermal resistance of liquid metal based micro channel could be much smaller, but also the coolant volume flow could be decreased. What is more, the liquid metal can be driven by a highly efficient electromagnetic pump without any noise. Therefore, more compact and energy-saving micro channel cooling devices with better cooling capability may come into reality. This new method is rather practical, and is expected to be important for realizing an extremely high heat dissipation rate.
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Reports on the topic "Mine and Metal Company"

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Montsion, R. M., E. de Kemp, J. W. Lydon, E. M. Schetselaar, and P. W. Ransom. 3D metal zonation of the Sullivan Mine, Kimberley, British Columbia, Canada. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2016. http://dx.doi.org/10.4095/297512.

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Larocque, A. C. L., C. E. Chapin, A. W. Laughlin, and D. Hickmott. Metal-residence sites in mine tailings in the Magdalena District, New Mexico, USA. Office of Scientific and Technical Information (OSTI), May 1996. http://dx.doi.org/10.2172/225968.

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Montsion, R., E. A. de Kemp, J. Lydon, P. Ransom, and J. Joseph. 3D stratigraphic, structural and metal zonation modelling of the Sullivan Mine, Kimberly, BC. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2015. http://dx.doi.org/10.4095/296341.

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Brown, D. R., and G. E. Spanner. Impact evaluation of a mill tailings thickener installed at J.R. Simplot Company`s Smoky Canyon Mine under the Energy $avings Plan. Office of Scientific and Technical Information (OSTI), January 1995. http://dx.doi.org/10.2172/46667.

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Healy, William. Performance Oriented Packaging Testing of M86 APERS MINE Packed 12 per PA19 Metal Ammunition Box, 2 Boxes per Wirebound Box. Fort Belvoir, VA: Defense Technical Information Center, April 1989. http://dx.doi.org/10.21236/ada216567.

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Alpay, S., R. J. McNeil, M. J. Hinton, and A. Grenier. Environmental geoscience investigations surrounding the former Aldermac mine, Abitibi, Quebec: interpreting geochemical records of metal contamination in near-shore lake sediments 30 and 70 years after mining. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2019. http://dx.doi.org/10.4095/315351.

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Gao, Feng, Ja Hun Kwak, Jong H. Lee, Diana N. Tran, Charles HF Peden, Ken Howden, Yisun Cheng, et al. Final Report of a CRADA Between Pacific Northwest National Laboratory and the Ford Motor Company (CRADA No. PNNL/265): ?Deactivation Mechanisms of Base Metal/Zeolite Urea Selective Catalytic Reduction Materials, and Development of Zeolite-Based Hydrocarbon Adsorber Materials? Office of Scientific and Technical Information (OSTI), February 2013. http://dx.doi.org/10.2172/1064573.

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Salasovich, J., J. Geiger, V. Healey, and G. Mosey. Feasibility Study of Economics and Performance of Solar Photovoltaics at the Former Chicago, Milwaukee, and St. Paul Rail Yard Company Site in Perry, Iowa. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites. Office of Scientific and Technical Information (OSTI), March 2013. http://dx.doi.org/10.2172/1071973.

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Rubin, Alex, Alan Omar Loera Martinez, Jake Dow, and Anna Puglisi. The Huawei Moment. Center for Security and Emerging Technology, July 2021. http://dx.doi.org/10.51593/20200079.

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For the first time, a Chinese company—Huawei—is set to lead the global transition from one key national security infrastructure technology to the next. How did Washington, at the beginning of the twenty-first century, fail to protect U.S. firms in this strategic technology and allow a geopolitical competitor to take a leadership position in a national security relevant critical infrastructure such as telecommunications? This policy brief highlights the characteristics of 5G development that China leveraged, exploited, and supported to take the lead in this key technology. The Huawei case study is in some ways the canary in the coal mine for emerging technologies and an illustration of what can happen to U.S. competitiveness when China’s companies do not have to base decisions on market forces.
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Analysis of mine fires for all U.S. metal/nonmetal mining categories, 1990-2001. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, November 2004. http://dx.doi.org/10.26616/nioshpub2005105.

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