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Numerical Investigation of the Effect of a Novel Wet Scrubber on Dust Reduction in an Underground Coal Mine Mining, Metallurgy and Exploration (330345b3-631c-4721-bb65-792de9742b60)
By Thomas Novak, Sampurna Arya
Controlling dust generation and keeping it below permissible limits to meet federal dust standards at the working face of a roomand-pillar coal mine is a challenge for a mine operator. With the recent
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Microbially-Induced Separation Of Arsenopyrite And Bioremediation Of Arsenic - Preprint 09-039
By M. N. Chandraprabha
This paper discusses the role of mineral-adapted acidiphilic microorganism Acidithiobacillus ferrooxidans on the beneficiation of arsenopyrite containing multisulfides (pyrite and chalcopyrite). Adapt
Jan 1, 2009
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Waste management in Estonian oil shale industry
By M. Lohk, Y. -. R. Pastarus
Oil shale industry of Estonia provides a significant contribution to the country’s economy, but causes a large number of different problems. In spite of high economical parameters of the current under
Jan 1, 2011
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Considerations For Blending Low-Rank and High-Rank Coals – Preprint 97-15
By O. Ogunsola, M. Downing
This paper gives a brief overview of impacts of coal blending on coal-fired power plants performance and discuses the preliminary results of an on-going study aimed at evaluating the effect of coal pr
Feb 24, 1997
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Design And Construction Challenges Of Hard Rock TBMS At The Gotthard Base Tunnel
By Michael Rehbock-Sander
The Gotthard Base Tunnel (GBT) is 57 km (35 miles) long and consists of two par-allel single-track tubes with an ex-cavation diameter ranging from 8.8 to 9.5 m (28.8 to 31.2 ft). These are interlinked
Jan 1, 2012
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A History of Gold Mining in Oatman & Gold Road, Az - SME Annual Meeting 2024
By Terence P. McNulty
Gold-bearing outcrops were discovered in 1862 by Union soldiers garrisoned at Needles, CA, near the northwest corner of the future State of Arizona. Sporadic mining began several years later, but engi
Feb 1, 2024
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Thermodynamic Constraints On Arsenic And Heavy Metals Removal From Water With Limestone-Based Material
By A. D. Davis
Limestone-based material is effective for reducing arsenic concentrations below the current limit of 10 parts per billion for drinking water, typically resulting in final concentrations of about 4 to
Feb 27, 2013
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Floodplain Aggregate Mining In Western Oregon (2ca5f679-fd59-4011-96c0-926073fa7dc9)
By E. F. Schnitzer, S. R. Mamoyac, P. J. Wampler
During 1996 and 1997, Oregon experienced flooding on a scale not seen in many years. Some gravel pits located near rivers experienced erosion and, in several cases, breaches between the gravel pit an
Jan 1, 1999
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Discussion - Analysis and assessment of grade variability for improving exploration planning and reserve estimation
By E. Tulcanaza
M.S. Azun I do not at all agree with the basic points of the author's conclusion. The use of lognormal or normal model to respond to the attribute distribution function should be carefully quest
Jan 3, 1985
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Biomineralization Of Manganese By Bacillus Spp Isolated From A Marine Biofilm
By H. Sarvamangala
Biomineralization of manganese on titanium condenser material exposed to seawater has been illustrated. Biom-ineralization occurs when the fouling components, namely, the microbes, are able to oxidize
Jan 1, 2008
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Coal Desulfurization With Sodium Hypochlorite
By Eung Ha Cho, Wendi Li
Wet desulfurization of Pittsburgh No. 8 coal and Illinois No. 6 coal were conducted with sodium hypochlorite in the laboratory. Pittsburgh No. 8 coal was leached by hypochlorite at high pHs in one ste
Jan 1, 2005
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Exploration (2303cc71-ebf3-44eb-bd90-42769f9f3467)
By D. R. Wilburn
The worldwide budget for nonferrous, nonfuel mineral exploration was expected to increase by 58 percent in 2004 from the 2003 budget, according to Metals Economics Group (MEG) of Halifax, Nova Scotia.
Jan 1, 2005
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An Equipment Selection Application Using The AHP Method
By M. Yavuz
Multiple Criteria Decision Making (MCDM) is one of the most considerable branches of Operation Research. MCDM refers to making decisions in the presence of multiple, usually conflicting, criteria. The
Jan 1, 2007
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Floodplain Aggregate Mining In Western Oregon (b3a583d5-3e7a-4dd2-84c0-16936e808842)
By E. F. Schnitzer, P. J. Wampler
During 1996 and 1997, Oregon experienced flooding on a scale not seen in many years. Some gravel pits located near rivers experienced erosion and, in several cases, breaches between the gravel pit an
Jan 1, 1999
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‘Here’s to Low-Grade Ore and Plenty of it,’ the Hearsts and the Homestake Mine
By Duane A. Smith
They are gone now. Gone like that long ago generation that gave them birth. The Homestake Mine, nestled in the northern Black Hills, closed in 2001 after 125 years, the longest run of any major Amer
Jan 1, 2003
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Inertization as Means for Reducing Down Time and the Explosion Risk in Cases of Spontaneous Combustion
By Walter Hermülheim, Klaus-Dieter Beck
In German hardcoal mining approximately 1 or 2 cases of spontaneous combustion are recorded per 10 million tonnes of saleable output. In approximately every 20th spontaneous combustion case, CH, is ig
Jan 1, 1997
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Geologic Coal Assessment: The Interface With Economics
By E. D. Attanasi
Geologic resource assessments describe the location, general characteristics, and estimated volumes of resources, whether in-situ or technically recoverable. Such compilations are only an initial ste
Jan 1, 2001
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Beneficiation Of Brazilian Diatomite For Filtration Application Industry
By S. C. A. Franca, M. T. Millqvist, A. B. Luz
Laboratory experiments were performed on a Brazilian diatomite from Bahia State to produce an industrial product for use as a filter aid. Bench and pilot plant tests were conducted consisting of: diat
Jan 1, 2002
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Lithologic and Structural Constraints on TBM Tunneling in New York City
By Charles Merguerian
In medium- to high-grade metamorphic terrains such as found in New York City(NYC), rock mass texture and mineralogy are important factors in predicting TBM penetration destiny. Integration of data fro
Jan 1, 2005
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Thermoanalytical Study On The Oxidation Of Sulfide Minerals At High Temperatures
By S. E. Pérez-Fontes
An experimental study on the oxidation of chalcopyrite (CuFeS2), pyrite (FeS2), covellite (CuS) and chalcocite (Cu2S) particles was conducted by means of differential scanning calorimetry (DSC) and th
Jan 1, 2007