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Sunday, April 26, 2020 | History

2 edition of Neutralization of acidic discharges from abandoned underground coal mines by alkaline injection found in the catalog.

Neutralization of acidic discharges from abandoned underground coal mines by alkaline injection

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Published by U.S. Dept. of the Interior, Bureau of Mines in Washington, D.C .
Written in English

    Places:
  • Pennsylvania.
    • Subjects:
    • Acid mine drainage.,
    • Neutralization (Chemistry),
    • Sodium hydroxide.,
    • Abandoned coal mines -- Pennsylvania.

    • Edition Notes

      Includes bibliographical references (p. 36-37).

      Statementby William W. Aljoe and Jay W. Hawkins.
      SeriesReport of investigations ;, 9468, Report of investigations (United States. Bureau of Mines) ;, 9468.
      ContributionsHawkins, Jay W.
      Classifications
      LC ClassificationsTN23 .U43 no. 9468, TD899.M5 .U43 no. 9468
      The Physical Object
      Pagination37 p. :
      Number of Pages37
      ID Numbers
      Open LibraryOL1740513M
      LC Control Number92046322

      Kirby, Daniel, "Effective Treatment Options for Acid Mine Drainage in the Coal Region of West Virginia" ().Theses, Dissertations These can be found on all kinds of mine sites, including both underground and open pit mines. Acid mine drainage is however time dependent, which is why new sources are or for any abandoned mines that are. The effectiveness of preventing or ameliorating acid mine drainage (AMD) through the application of alkaline additives is evaluated for eight surface coal mines in Pennsylvania, USA. Many of the mine sites had overburden characteristics that made prediction of post-mining water quality uncertain. Alkaline materials were applied at rates ranging from 42 to > 1, t as calcium Cited by: Appalachian region due to decades of coal-mining activities predating regulation of acid discharge. When AMD is treated by neutralization with alkaline substances such as limestone or lime, a precipitate or floc is formed, consisting mainly of base metal hydroxides and unreacted alkaline material. Disposal costs of the floc can be as much as. A review of acidity generation and consumption in acidic coal mine in the book edited by Younger and Robins (a,b). The review by Evangelou and Zhang () is and rates and mechanisms of acidity generation and consumption in tailings, dumps, aquifers, surface waters, and sediments are discussed.


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Neutralization of acidic discharges from abandoned underground coal mines by alkaline injection by William W. Aljoe Download PDF EPUB FB2

NEUTRALIZATION OF ACIDIC DISCHARGES FROM ABANDONED UNDERGROUND COAL MINES BY ALKALINE INJECTION By William W. Aljoe1 and Jay W. Hawkins2 ABSTRACT The hydrologic characteristics of two abandoned underground coal mine sites, near Latrobe, PA, and Uniontown, PA, were investigated by the U.s.

Bureau of Mines for possible implementation of. Get this from a library. Neutralization of acidic discharges from abandoned underground coal mines by alkaline injection.

[William W Aljoe; Jay W Hawkins; United States. Bureau of Mines.]. The hydrologic characteristics of two abandoned underground coal mine sites, near Latrobe, PA, and Unionntown, PA, were investigated by the U.S. Bureau of Mines for possible implementation of alkaline injection into the mine pools as a means of abating their acid discharges.

The feasibility of abating acidic discharges from an abandoned underground coal mine by in situ neutralization (alkaline injection) within the mine pool has been investigated by the U.S.

Bureau of Mines at a site within Keystone State Park, near Latrobe, Pennsylvania, (USA). "The hydrologic characteristics of two abandoned underground coal mine sites, near Latrobe, PA, and Unionntown, PA, were investigated by the U.S. Bureau of Mines for possible implementation of alkaline injection into the mine pools as a means of abating their acid discharges.

A quantity of alkaline reagent (sodium hydroxide) sufficient for a Cited by: 5. for passive neutralization of acidic mine drainage (AMD).

Various test configurations can simulate conditions closed to the atmosphere (underground system) or open to the atmosphere (above-ground system) and the effects of limestone purity, secondary coatings, and particle size on dissolution rate.

Coupled with data on the average. Longevity of Acid Discharges from Underground Mines Located above the Regional Water Table J. Demchak, J. Skousen,* and L. McDonald ABSTRACT ha ( acres) have been surface mined in The duration of acid mine drainage flowing out of underground the state (L.

Bennett, personal communication, ). At right is a typical acid mine drainage discharge from an abandoned underground coal mine. To combat this problem, the MDTI was formed as a partnership of technical experts from industry, state and federal agencies and academia who have joined together to combat AMD and related water-quality problems from mining and seek solutions to them.

Nomenclature. Historically, the acidic discharges from active or abandoned mines were called acid mine drainage, or AMD. The term acid rock drainage, or ARD, was introduced in the s and s to indicate that acidic drainage can originate from sources other than mines. For example, a paper presented in at a major international conference on this subject was.

Solute transport and chemical neutralization (pH 3 to 7) within a shallow heterogeneous aquifer producing acid mine drainage (AMD) are examined at an abandoned surface coal mine in West Virginia. The aquifer is undergoing partial neutralization by mixing with alkalinity from a leaking sludge disposal pond, extending in preferential zones controlled by Cited by: 6.

resulting discharges are from flooded and unflooded abandoned underground coal mines. This paper presents an overview of the hydraulic system in the mine network of the Uniontown Syncline along with a summary of selected data from the and studies.

hard to treat. Abandoned underground mines may have cave-ins and flooding, restricted access, and unreliable mine maps. Abandoned surface mines may have huge volumes of spoil, often of unknown composition and hydrology (Ziemkiewicz and Skousen ).

Rehandling and mixing alkalinity into the backfill of surface mines and tailings is. Neutralization is generally the first step in treating acid mine water (gold, operational and abandoned coal mines).

In Gauteng a volume of Mℓ/d of acid mine water from gold mining requires treatment. At an acidity of 3 g/ℓ (as CaCO 3), a lime (CaO) price of R and a purity of 93 % the neutralization cost would amount to R57 million/a.

Underground Coal Mines by Alkaline Injection. Neutralization of acidic discharges from abandoned underground coal mines by alkaline injection. sufficient for a one-time neutralization of Author: Christian Wolkersdorfer. from abandoned mines, tailing piles, and stripped areas.

A recent federal demonstration project was undertaken near Elkins, West Virginia, to determine if acid mine drainage could be reduced ef fectively by extensive water diversion, sealing of old mines, and general land reclamation procedures. Unfortu nately, the project never was com.

1 Use of Alkaline Coal Ash for Reclamation of a Former Strip Mine Jennifer L. Kolbe1, Linda S. Lee2, Chad T. Jafvert3, Ishwar P. Murarka4 1Purdue University Graduate, MWH Americas, Royal Drive, SuiteAlpharetta, GA ; 2Purdue University, Department of Agronomy, West Lafayette, IN ; 3Purdue University, School of Civil Engineering, West Lafayette, IN File Size: 1MB.

Neutralization of acid mine drainage using the final product from CO 2 emissions capture with alkaline paper mill of CO 2 emissions into the atmosphere and subsequently the quality improvement of acidic discharges of the IPB.

chemistry of conventional and alternative treatment systems for the neutralization of acid mine by: Ettringite formation following chemical neutralization treatment of acidic coal mine drainage ettringite formation documents severe overtreatment of acidic mine waters to the point of producing a highly alkaline effluent that may have adverse effects upon aquatic life.

J.E. Prediction of Extractable Metals in Retention Pond Cited by: 2. Assessment, Water-Quality Trends, and Options for Remediation of Acidic Drainage from Abandoned Coal Mines Near Huntsville, Missouri, — By: Eric D.

Christensen. ABSTRACT. Water from abandoned underground coal mines acidifies receiving streams in the Sugar Creek Basin and Mitchell Mine Basin near Huntsville, Missouri. Above-drainage mines did not show the same dramatic improvement as below-drainage mines; they tended to improve slightly in water quality but remained acidic (Demchak et al., ; Lambert and Dzombak, ).

Acid mine drainage is unsightly, and treatment costs for abandoned underground mines are a public fi nancial burden. Jageman et al. (), for example, give carbonate concentrations for waters released from three coal mines that show [CO 2] AMD concentrations of aboutand mg/L. Increasing the [CO 2] AMD in our example from 30 mg/L (line B) to mg/L (line C) reduces CO 2 feed requirements in all cases by mg/L and shifts the E value Cited by: Acid mine drainage from coal and mineral mining operations is a difficult and costly problem.

In the eastern U.S., more than 7, kilometers of streams are affected by acid drainage from coal mines (Kim et al. In the western U.S., the Forest Service estimates that betw mines are currently. @article{osti_, title = {Hydrologic investigation and remediation of a post-remining acidic seep}, author = {Aljoe, W W and Linberg, N A}, abstractNote = {Surface remining of coal pillars in abandoned underground workings in the Pittsburgh seam in southwestern Pennsylvania has often resulted in post-remining discharges whose water quality is the same or better than the pre.

Nomenclature. Historically, the acidic discharges from active or abandoned mines were called acid mine drainage, or AMD. The term acid rock drainage, or ARD, was introduced in the s and s to indicate that acidic drainage can originate from sources other than mines. [1] For example, a paper presented in at a major international conference on this subject was.

However, the term remining as it is used in this chapter, primarily refers to surface mining of abandoned surface or underground mines or reprocessing of coal refuse piles where preexisting pollution discharges will be affected by remining under Pennsylvania’s Subchapter F and Subchapter G (anthracite) program.

CONTENTS Chapter DISCLAIMER ii FOREWORD ABSTRACT 1V CONTENTS v LIST OF FIGURES vm LIST OF TABLES xi LIST OF CONVERSIONS xm 1 INTRODUCTION 1 Background 1 Review of AMD Chemistry 2 Acidity 4 Ion Solubility and pH 4 References 5 2 GENERAL TREATMENT CONSIDERATIONS 7 Acid Mine Drainage.

Alkaline Amendment to Abandoned Mines Abandoned mines in the eastern USA generate more than 90% of the AMD in stream s and rivers, most of which comes from underground mines.

Neutralization of acidic discharges from abandoned underground coal mines by alkaline injection [microfo Rapid thermal annealing of amorphous hydrogenated carbon (a-C: H) films [microform] Samuel A.

Alterovitz Alkaline oxidative leaching of gold-bearing arsenopyrite ores [microform] / by P. Bhakta, J.W. Langhans. contains bituminous coal deposits that were widely mined by underground and surface activities in the late and s. The overburden is highly deficient in neutralizing capability and the drainage produced from the abandoned mines is typically acidic, with pH below and elevated concentrations of Al, Mn, and Fe.

For at least 50 years, the. National Reclamation of Abandoned Mine Lands by Michael N. Greeley, USDA - Forest Service, Washington, D.C. Presentation to SME, March ABSTRACT. The movement to reclaim abandoned mine sites has gained momentum as federal, state, and private organizations have increased their commitment and resources to tackle mutual, and often controversial, problems.

Table of ContentsSite Description and ClimateCharacterization of TailingField Test ProceduresEvaluation of Field Tests Field tests on year-old acidic copper tailing showed that after treatment with combinations of dolomitic lime, limerock, fertilizers, and/or sewage sludge, vegetation can be successfully established.

Plant coverages, 4 years after seeding, ranged. underground mine workings. Of major concern is huge volume of acidic water (acid mine drainage-AMD) which is generated in active and old abandoned mines underground workings. This water requires treatment to DWA/DWAF () set guidelines.

Several technologies have been advanced for treatment of AMD. These are, limestone and lime. Development of a Co-Disposal Protocol for the Neutralization and Amelioration of Acid Mine Drainage with Fly Ash Damini Surender1 and Leslie Petrik2 1ESKOM–Resources and Strategy, Lower Germiston Road, Rosherville, Private BagCleveland,South Africa; 2University of Western Cape, South African Institute of Advanced Materials Chemistry.

This approach can be complemented by mixing the waste rock with alkaline materials from pulp and steel mills to increase the system's neutralization potential. Leachates from 1 m3 tanks containing sulfide-rich (ca wt %) waste rock formed under dry and water saturated conditions under laboratory conditions were characterized and compared to Cited by: Despite elevated concentrations in coal beds, dissolved As rarely is elevated in abandoned coal-mine discharges in Pennsylvania.

For samples collected inconcentrations of As ranged from. Since acid mine drainage comes from abandoned mines these sites are often in mountainous, uninhabited areas where access to the site may be difficult.

Many systems have been built with ease of operation being paramount. In fact, the systems are often built for operation with no onsite operator. This has led to the use of caustic for neutralization. The bulk of acid drainage comes from coal mines only because there are more of them than there are refuse piles (National Academy of Sciences ).

(There are approximately 70 abandoned or inactive underground coal mines in the U.S. versus about 5. Acid Mine Drainage (AMD), is the outflow of acidic water from mining operations including waste rock, tailings, and exposed surfaces in open pits and underground workings.

ARD forms as a result of. Aljoe, William and Hawkins, Jay, Neutralization of Acidic Discharges from Abandoned Underground Coal Mines by Alkaline Injection, U.S. Bureau of Mines Report of Investigationsp. 37, Aljoe, William and Hawkins, Jay, Application of Aquifer Testing in Surface and.

Coal-burning power plants also release other pollutants, including nitrogen oxides (NOx), sulfur oxides (SOx), and particulates. Select one of these pollutants and identify one technology that can be used to remove it from the waste stream of coal-burning power plants.

coal rank- as carbon content of coal increases coal rank increases peat- 50% peat turns into soft, dark brown coal- lignite (75%) CC dull, black bituminous coal (85%) C to C shiny black anthracite coal (forms by metamorphism in an organic belt) (95%) Carbon residue distinguishes them from one another.The use of other alkaline reagents such as wollastonite from the Aracena skarn deposit in Huelva (Fernández-Caliani et al.

), calcium or lime mud from cellulose pulp production in Huelva (Pérez-López et al. ) or fly ash from coal combus-tion in Los Barrios power plant (Pérez-López et al. ; Quispe.the in situ treatment of acidic mine water. Actual injection of alkaline material was performed in with initial positive results; however, the amount of alkalinity added to the system was limited and resulted in short duration treatment.

Ina CBRC grant was awarded to further.