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acid mine drainage from open cast coal mining pdf

acid mine drainage from open cast coal mining pdf

3.1 An introduction to acid mine drainage

2015-3-30  An introduction to acid mine drainage . Iron pyrite, FeS2, also known as 'fool's gold', is the most important source of ... The effects and consequences of acid drainage from open pit mines have ... Spoil piles are wastes generated by coal strip mining in order to gain access to

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Acid drainage potential from coal mine wastes ...

2001). The impact depends on the magnitude of the acid drainage and the sensitivity of the receiving environment along with other factors like the degree of neutralization, dilution and/or attenuation. The main sources of acid drainage from mining areas include drainage from under-ground workings, surface runoff from open pit mine faces

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Acid drainage from coal mining: Effect on paddy soil

2017-4-1  Acid drainage and overburden from coal mines are acidic (pH: 2.0–3.0) and are rich in iron compounds, which on weathering and oxidation release sulfate, Fe2 + and other metallic ions.

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Coal Mining and Production - MIGA

2018-8-5  Coal Mining and Production Industry Description and Practices ... of acid mine drainage (AMD) is a major problem. Other significant impacts include ... of spoil heaps to minimize the extent of open areas. • Diversion and management of surface and groundwater to minimize water pollution problems. Simple treatment to reduce the

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[PDF] ACID MINE DRAINAGE TREATMENT WITH OPEN

Acid mine drainage (AMD) is often associated with mining of pyritic coal and metal deposits. AMD associated with coal mines in the eastern U.S. can have acidity and iron concentrations ranging from the teens to the thousands of mg/l. Aluminum and manganese can be present in concentrations ranging from zero to the low hundreds of mg/l. Much attention has been devoted to developing inexpensive ...

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Acid mine drainage from coal mining in the United

Also, the coal mining sector could benefit from remote and ground sensing techniques, including the use of unmanned aerial vehicles and hyperspectral imaging for hydrogeochemical investigations. Effective treatment of acid drainage from mine areas reduces material damage, allows resource reuse and recovery, and enables successful post-mine land ...

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Coal Mining Detailed Study - 2008 - EPA

2016-5-16  appendix b: draft acid mine drainage treatment cost module: chemical precipitation using caustic soda . appendix c: draft acid mine drainage treatment cost module: chemical precipitation using caustic soda . appendix d: draft acid mine drainage treatment cost module: limestone bed . appendix e: acid mine drainage treatment cost module results

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The Social and Environmental Consequences of Coal

2013-3-12  Open cast mining removes large volumes of soil and rock overburden to get to the workable coal seams, and destroys regional aquifers. Mining produces large mountains of solid waste. Coal heaps are prone to spontaneous combustion. Leachate from waste heaps are often acidic, adding to the general and large scale acid mine drainage impact and ...

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Effects of acid drainage from abandoned coal mines

2021-5-23  The discharge of acid mine drainage from abandoned high sulfur (S) coal mines has caused serious pollution in the Shandi River, Yangquan, Shanxi Province. To determine the impact of long-term acid mine drainage on the microorganisms in the river, we collected river sediments from a polluted tributary (Group P) and the mainstream of Shandi River (Group R) to study the bacterial diversity and ...

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(PDF) Acid Mine Drainage (AMD): causes, treatment

Naturally-occurring bacteria can ac- celerate AMD production by assisting in the breakdown The mining of certain minerals, including gold, of sulfide minerals. copper, and nickel, is associated with acid drainage Also referred to as acid rock drainage (ARD), AMD problems that can cause long-term impairment to emanating from mine waste rock ...

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Acid drainage potential from coal mine wastes ...

2001). The impact depends on the magnitude of the acid drainage and the sensitivity of the receiving environment along with other factors like the degree of neutralization, dilution and/or attenuation. The main sources of acid drainage from mining areas include drainage from under-ground workings, surface runoff from open pit mine faces

Get Price

[PDF] ACID MINE DRAINAGE TREATMENT WITH OPEN

Acid mine drainage (AMD) is often associated with mining of pyritic coal and metal deposits. AMD associated with coal mines in the eastern U.S. can have acidity and iron concentrations ranging from the teens to the thousands of mg/l. Aluminum and manganese can be present in concentrations ranging from zero to the low hundreds of mg/l. Much attention has been devoted to developing inexpensive ...

Get Price

TACID ROCK DRAINAGE TECHNICAL GUIDE

2013-1-16  Acid rock drainage may occu from ar number of sources as a result of metal and coal mining activities as follows: Underground workings. Open pit mine faces and pit workings. Waste rock dump frosm metal mines and spoi frol pilem coas l mining. Tailings deposits. BC AMD TASK FORCE, DRAFT TECH GUIDE. VO, L II DECEMBER 1989

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Effective Treatment Options for Acid Mine Drainage in the ...

2020-10-13  open pit mines. Acid mine drainage is however time dependent, which is why new sources are continually being discovered. The drainage does not have to form while the mine is active. It could be, and often is, years later that the problem of AMD arises. Not all waste materials, or areas, on a mine site cause acid mine drainage. Drainage can

Get Price

Geochemistry of acid mine drainage from a coal

ABSTRACT. Acid drainage influence on the water and sediment quality was investigated in a coal mining area (southern Brazil). Mine drainage showed pH between 3.2 and 4.6 and elevated concentrations of sulfate, As and metals, of which, Fe, Mn and Zn exceeded the limits for the emission of effluents stated in the Brazilian legislation.

Get Price

(PDF) Acid Mine Drainage (AMD): causes, treatment

Naturally-occurring bacteria can ac- celerate AMD production by assisting in the breakdown The mining of certain minerals, including gold, of sulfide minerals. copper, and nickel, is associated with acid drainage Also referred to as acid rock drainage (ARD), AMD problems that can cause long-term impairment to emanating from mine waste rock ...

Get Price

Evolution of Acid Mine Drainage from a Coal Waste

Waste rock piles (WRPs) are commonly remediated with cover systems to limit water and oxygen influx and mitigate the impacts of acid mine drainage (AMD) on the environment. While numerous types of cover systems exist, simple, single-layer soil covers remain an attractive option due to their low cost and simplicity of installation. Since knowledge of their long-term performance in humid ...

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Coal Mining on the Highveld and its Implications for ...

2009-11-1  collapsed, burning mine). Figure 4. A collapsed, burning coal mine. Acid mine drainage: The most serious environmental problem arising from coal mining is the generation of sulphuric acid as a result of a chemical reaction between an iron sulphide mineral (pyrite) present in the coal

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Estimating emissions and energy from coal mining

2020-8-20  Estimating emissions and energy from coal mining guideline . ... Guidelines for the Implementation of NGER Method 2 or 3 for Open Cut Coal Mine Fugitive GHG Emissions Reporting (C20005), published by the Australian ... Underground gas drainage emissions (surface in seam, sis): Mass of CH. 4. and CO. 2.

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Appendix 2: Environmental and Social Impacts of Mining

2018-9-21  Acid drainage Acid drainage is one of the most serious environmental impacts associated with mining. It occurs when sulfide-bearing minerals, such as pyrite or pyrrhotite, are exposed to oxygen or water, producing sulfuric acid. The presence of acid-ingesting bacteria often speeds the process. Acidic water may subsequently leach other metals in ...

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TACID ROCK DRAINAGE TECHNICAL GUIDE

2013-1-16  Acid rock drainage may occu from ar number of sources as a result of metal and coal mining activities as follows: Underground workings. Open pit mine faces and pit workings. Waste rock dump frosm metal mines and spoi frol pilem coas l mining. Tailings deposits. BC AMD TASK FORCE, DRAFT TECH GUIDE. VO, L II DECEMBER 1989

Get Price

Estimating emissions and energy from coal mining

2020-8-20  Estimating emissions and energy from coal mining guideline . ... Guidelines for the Implementation of NGER Method 2 or 3 for Open Cut Coal Mine Fugitive GHG Emissions Reporting (C20005), published by the Australian ... Underground gas drainage emissions (surface in seam, sis): Mass of CH. 4. and CO. 2.

Get Price

Acid Mine Drainage Overview - Pebble Science

2011-11-28  Acid Mine Drainage and Effects on ... In Alaska, several large mine projects are currently proposed, ranging from open-pit, hard rock mines to strip mines for extracting coal. These large-scale projects have the potential ... disturbances, such as highway construction and mining where acid

Get Price

Effective Treatment Options for Acid Mine Drainage in the ...

2020-10-13  open pit mines. Acid mine drainage is however time dependent, which is why new sources are continually being discovered. The drainage does not have to form while the mine is active. It could be, and often is, years later that the problem of AMD arises. Not all waste materials, or areas, on a mine site cause acid mine drainage. Drainage can

Get Price

Neutralization Acid Mine Drainage (AMD) using NaOH at

The pH value in acid mine drainage before the 3.92 and 4.18 treatment process shows that acid mine drainage is very acidic and far from the waste quality standard set by the Decree of the Governor of South Kalimantan number 36 of 2008 is 6-9. Acid mine drainage (AMD) in Indonesia is generally caused by high rainfall and the remaining

Get Price

Geochemistry of acid mine drainage from a coal

ABSTRACT. Acid drainage influence on the water and sediment quality was investigated in a coal mining area (southern Brazil). Mine drainage showed pH between 3.2 and 4.6 and elevated concentrations of sulfate, As and metals, of which, Fe, Mn and Zn exceeded the limits for the emission of effluents stated in the Brazilian legislation.

Get Price

Treatment methods for water pollution from coal mining

of coal mining is the acid mine drainage which will be discussed further in this report. This report will be focus on Moatize (Tete) district because it contains two mega coal mining companies operating there. The companies are Vale Mozambique (with headquarter in Brazil) and Rio Tinto (with headquarter in

Get Price

Utilization of Steel Slag to Remediate Acid Mine Drainage

2019-12-15  Acid Mine Drainage “AMD” Acid mine drainage is as old and pervasive as mining itself. In the United States alone, there are some 500,000 abandoned mines, many of them in the western states. In addition, Eastern states such as Pennsylvania, West Virginia, and Kentucky are the heart of the coal mining

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Passive Remediation of Acid Mine Drainage Using Ball ...

2018-10-9  Acid mine drainage (AMD) has low or near neutral pH and contains several metals such as iron manganese, , aluminum and also other heavy metals with elevated concentration [1] [2] [3]. 22 2MS 7O 2H O 2M 4SO 4H 22 2 4 ++ → + + + − + 1) (A coal mining located in Jorong, Tanah Laut district Province of South Kali-,

Get Price

(PDF) Acid Mine Drainage (AMD): causes, treatment

Naturally-occurring bacteria can ac- celerate AMD production by assisting in the breakdown The mining of certain minerals, including gold, of sulfide minerals. copper, and nickel, is associated with acid drainage Also referred to as acid rock drainage (ARD), AMD problems that can cause long-term impairment to emanating from mine waste rock ...

Get Price

Acid Mine Drainage Overview - Pebble Science

2011-11-28  Acid Mine Drainage and Effects on ... In Alaska, several large mine projects are currently proposed, ranging from open-pit, hard rock mines to strip mines for extracting coal. These large-scale projects have the potential ... disturbances, such as highway construction and mining where acid

Get Price

Treatment methods for water pollution from coal mining

of coal mining is the acid mine drainage which will be discussed further in this report. This report will be focus on Moatize (Tete) district because it contains two mega coal mining companies operating there. The companies are Vale Mozambique (with headquarter in Brazil) and Rio Tinto (with headquarter in

Get Price

Effective Treatment Options for Acid Mine Drainage in the ...

2020-10-13  open pit mines. Acid mine drainage is however time dependent, which is why new sources are continually being discovered. The drainage does not have to form while the mine is active. It could be, and often is, years later that the problem of AMD arises. Not all waste materials, or areas, on a mine site cause acid mine drainage. Drainage can

Get Price

AN OVERVIEW OF MINING WASTE MANAGEMENT

2002-5-20  The problem of acid mine drainage has been widely known for many years and it was the main reason the federal government enacted the Surface Mining Control and Reclamation Act in 1977 to regulate the coal mining industry. Since enactment of that law, a great deal of experience has

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Geochemistry of acid mine drainage from a coal

ABSTRACT. Acid drainage influence on the water and sediment quality was investigated in a coal mining area (southern Brazil). Mine drainage showed pH between 3.2 and 4.6 and elevated concentrations of sulfate, As and metals, of which, Fe, Mn and Zn exceeded the limits for the emission of effluents stated in the Brazilian legislation.

Get Price

Estimating emissions and energy from coal mining

2020-8-20  Estimating emissions and energy from coal mining guideline . ... Guidelines for the Implementation of NGER Method 2 or 3 for Open Cut Coal Mine Fugitive GHG Emissions Reporting (C20005), published by the Australian ... Underground gas drainage emissions (surface in seam, sis): Mass of CH. 4. and CO. 2.

Get Price

Neutralization Acid Mine Drainage (AMD) using NaOH at

The pH value in acid mine drainage before the 3.92 and 4.18 treatment process shows that acid mine drainage is very acidic and far from the waste quality standard set by the Decree of the Governor of South Kalimantan number 36 of 2008 is 6-9. Acid mine drainage (AMD) in Indonesia is generally caused by high rainfall and the remaining

Get Price

HANDBOOK OF TECHNOLOGIES

2019-9-5  OF ACID MINE DRAINAGE Prepared by J. Skousen, A. Rose, G. Geidel, J. Foreman, R. Evans, W. Hellier, and members of the Avoidance and Remediation Working Group of the ACID DRAINAGE TECHNOLOGY INITIATIVE (ADTI) Published by The National Mine Land Reclamation Center located at West Virginia University in Morgantown, West Virginia June 1,1998

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Passive Remediation of Acid Mine Drainage Using Ball ...

2018-10-9  Acid mine drainage (AMD) has low or near neutral pH and contains several metals such as iron manganese, , aluminum and also other heavy metals with elevated concentration [1] [2] [3]. 22 2MS 7O 2H O 2M 4SO 4H 22 2 4 ++ → + + + − + 1) (A coal mining located in Jorong, Tanah Laut district Province of South Kali-,

Get Price

Pollution from Mining

2009-7-4  Sub-surface mining frequently goes below the water table so water must be constantly pumped from the mine. Acid mine drainage results from the outflow of water from metal mines, coal mines, or other areas in which the ground has been disturbed. Metal salts, such as Fe +2, are oxidized upon contact with air to more highly acidic aquo species ...

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