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  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    ‘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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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

  • SME
    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