2 edition of Dewatering active underground coal mines found in the catalog.
Dewatering active underground coal mines
W.A. Wahler and Associates.
by Environmental Protection Agency, Office of Research and Development, [Office of Energy, Minerals, and Industry], Industrial Environmental Research Laboratory, for sale by the National Technical Information Service] in Cincinnati, Ohio, [Springfield, Va
Written in English
|Statement||by W. A. Wahler & Associates.|
|Series||Interagency energy-environment research and development program report ; EPA-600/7-79-124|
|Contributions||Industrial Environmental Research Laboratory (Cincinnati, Ohio)|
|The Physical Object|
|Pagination||xiii, 124 p. :|
|Number of Pages||124|
Answering demands for dewatering solutions. Metso‘s vertical plate pressure filter (VPA) has been developed to meet increasing demands for higher efficiency and automation in industrial and mining dewatering applications. The new VPA is a heavy-duty machine suitable for metallic minerals, industrial minerals, and coal and tailings. There are over 6, active mines in the United States! They supply the average American w pounds of minerals every year. Power Zone has worked fast to keep your mining operations running.
The Fairmont mine-pool consists of a complex of closed, flooded underground coal mines containing poor quality water in Marion County, West Virginia. If water levels were allowed to rise to a discharge elevation, the mine water could enter the Monongahela River and its tributaries and adversely affect surface water quality. Zambia Consolidated Copper Mines Ltd. (ZCCM) is planning a substantial increase in ore production in several of their underground mines on the Zambian Copperbelt over the next 10 years. The future production strategy is based on development of productive and economic mining methods through the application of mechanization and backfilling. Mechanization is designed to provide the Cited by:
The ground-water system and possible effects of underground coal mining in the Trail Mountain area, central Utah. (Geological Survey water-supply paper ) "Prepared in cooperation with the U.S. Bureau of Land Management." Bibliography 32 p. Supt. of Docs. No.: I 1. Water, Underground Utah Wasatch Plateau. by: 7. - RIIWMGA - Conduct dewatering operations in This unit covers the conduct of dewatering operations in underground coal and metalliferous mining operations. Coal mining; Metalliferous mining Install and dismantle dewatering system in accordance with the plan and other appropriated . Click on the Export link to export the NRT information to MS Word or PDF.
Introduction to Continuum Mechanics
synthesis of novel organofluorines by electrophilic fluorination and their evaluation as inhibitors of protein tyrosine phosphatase 1B.
Reagan-Gorbachev summit and its implications for United States-Soviet relations
world of Turner, 1775-1851
Jesus, Shelley, and Malthus
selection of sacred music
Get this from a library. Dewatering active underground coal mines: technical aspects and cost-effectiveness. [W.A. Wahler and Associates.; Industrial Environmental Research Laboratory (Cincinnati, Ohio)].
Shallow wells located within about ft of a stream in the study area have retained most of their original yield despite penetrating to within about ft vertically of a deep Pittsburgh coal mine. This same general fact was also noted by O'Steen () for File Size: KB.
Coal Mine Dewatering Roger Howell and Vladimir Ugorets recently joined SRK (US) bringing with them significant experience in the fields of coal hydrogeology and coal mine dewatering. At the Skyline longwall coal mine in Utah, the two teamed up to determine the source of large, persistent groundwater inflows emanating from fracture intersections.
34 Cekic & Oruc eo Dewatering-Systems in the Kreka Coal Basin This paper is giving a brief description of dewatering system in underground mines and, separately, in open pits.
In the Kreka syncline, where underground mining is being done, dewatering of. Abstract—Underground mine working changes hydraulic gradient which affect the underground surface water flow pattern.
It induces slow inflow of water from, porous soil and rock mass towards the mining excavation. Mine dewatering is the removal of percolated or logged water from mines toFile Size: 2MB.
Pump sets may be of the electric submersible type or of the self-priming surface pump type. Mine dewatering pump sets typically have capacities in the range 20 to l/s (72 to m3/h), with maximum delivery heads of m.
Higher flow rates can be achieved with multiple units in Size: KB. The mine types studied range from simple open pit to complex block caves and include examples from base metals, precious metals, diamonds, industrials and coal. The dewatering aspects of transition from open pit to underground mine is also covered.
Accurate mine dewatering, depressurisation and ground water control, can save mines millions of dollars in reduced waste stripping, faster loading and improved safety. Typically, the three most expensive costs to an underground mine are labour, compressed air and water control (water control includes storm water control and mine dewatering).File Size: 2MB.
EPA/ July DEWATERING ACTIVE UNDERGROUND COAL MINES: TECHNICAL ASPECTS AND COST-EFFECTIVENESS by W. Wahler & Associates Palo Alto, California Contract No. Project Officer S. Jackson Hubbard Extraction Technology Branch Industrial Environmental Research Laboratory Cincinnati, Ohio INDUSTRIAL.
General mine dewatering (control of inflows and lowering of groundwater levels). This is the classic dewatering activity which involves intercepting or collecting groundwater and surface water inflows and pumping the water away to create workably dry conditions in the relevant areas or levels of the mine.
Dewatering is a significant engineer-ing design and critical path com-ponent, and represents an on-going operational cost for open pit mining operations. Dewatering an open pit mine is an important process and its implications should be thoroughly un-derstood before selecting the pumping equipment and designing the pumping Size: 3MB.
underground mining and is frequently applied in coal mines. The concept is to sink a shaft or construct a slope or drift, depending on depth of ore, to the elevation of the mining hori.
Mine Water and The Environment, Vol. 13, No. 2, JuneppI THE DIFFERENCES IN UNDERGROUND MINES DEWATERING WITH THE APPLICATION OF CAVING OR BACKFILLING MINING METHODS by Vladirnir Straskraba President, Hydro-Geo Consultants, Inc.
and John F. Abel, Jr. Prof. Emeritus, Colorado School of Mines ABSTRACT. Underground dewatering and drainage is necessary to ensure that mining operations continue unhindered. Dewatering from rock faces in mine shafts, quarries, or gravel pits often contains abrasives such as sand, clay particles, drill cuttings, and other potentially damaging objects.
Dewatering Project images. Category Science & Technology; Suggested by Pink Floyd Nick Mason's Saucerful Of Secrets - Set The Controls For The Heart Of The Sun (Live).
Dewatering is a vital part of mining and the need to provide individual solutions to meet the unique operating characteristics of mines is greater. Weir’s response to COVID Safety is our number one priority and we have rigorous measures in place to protect our people, partners and communities while continuing to support our customers at.
around the underground mine. In order to have a discretization fine enough to adequately simulate the underground mine dewatering. Outside the radius, the size of the elements is 70 m. Figure 5: Recharge Distribution The three-dimensional mesh was generated by extending the two-dimensional mesh between the 10 layers of the Size: KB.
A phased approach to mine dewatering. non-renewable energy resources usually occurs through underground mines or open pits, some of which, when developed below the water table, cause.
Mine dewatering techniques 1. MINE DEWATERING Dr Martin Preene Preene Groundwater Consulting June 2. SYNOPSIS Synopsis • Water management for mining • Approaches to groundwater control • Examples of mine dewatering technology – Open pit – Underground – Shafts 3.
Mine site Dewatering. A two year process of research and development into efficient mine site dewatering and highwall pumping operations has resulted in the design and manufacture of the HDS dewatering foundations of the HDS are based on industry identified needs, requirements and improvements from end users of pumping equipment in the mining industry.
Mine Dewatering and Water Management at Barrick Goldstrike Mine in the Carlin Trend, Nevada Johnny Zhan, Ph.D. Underground Mines Pre-mining water table m amsl Current water table m amsl with a drawdown of m 8.
AprilU.S. EPA Hardrock Mining Conference 2. Goldstrike Dewatering System.5. Amplify the potential of tube settling which appears to be a feasible clarification technique for certain mine waters.
6. Study the dissolution of coal mine sludge in underground mines. 7. Evaluate pressure filtration and centrifuging which seem to have been prematurely disregarded as feasible methods for dewatering coal mine sludges.
8.Dan Mackie has over twelve years of experience in mining hydrogeology and water resources. Mr. Mackie specializes in hydrogeological characterization, design of depressurization, dewatering and groundwater management systems for open pit and underground mines.