reprocessing mine tailings to control acid rock drainage



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CONTROL OF ACID ROCK DRAINAGE FROM MINE TAILINGS ,

Acid mine drainage detrimentally affects thousands of surface watercourses throughout the world and costs tens of millions of dollars annually in site remediation expenditur This process is accelerated by the activity of ironand sulfur-oxidizing bacteria which grow chemolithotrophically in mine tailings Low cost, environmentally acceptable, and low maintenance treatment technologies are ,...

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equipment for reprocessing old mining tailings piles

reprocessing mine tailings to control acid rock drainage reprocessing mine tailings to control acid rock drainage Review of Disposal, Reprocessing and Reuse Review of Disposal, Reprocessing and Reuse Sludge as a cover over tailings AD , acid mine drainage AMD , acid rock drainage ARD and process water, Get Price...

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Reprocessing feasibility of polymetallic waste rock for ,

Flotation tests were conducted to reprocess the tailings for Au, Ag, and Cu recovery, and at the same time to prevent acid mine drainage AMD generation through the oxidation of sulfide minerals ,...

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Technical Document Acid Mine Drainage Prediction

Acid Mine Drainage Prediction compares acid rock drainage factors of waste rock piles and tailings impoundments In examining this table, it is important to note that diffusion of oxygen into water is slow and, therefore, oxidation of iron sulfide is inhibited until the water level drops, which can occur periodically or seasonally in some cas...

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Tailings reprocessing as source control for acid rock ,

31-12-1995 0183 32 Bench-scale laboratory flotation and gravity separation tests were conducted on tailings samples to remove the sulfidic material, mainly pyrite, the source of acid generation A combination of xanthate collectors, promoters, and frothers were used during flotation Pyrite recoveries were in the ,...

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Acid Mine Drainage

Acid Mine Drainage Environmental Notes on Mining, updated September 2009 Pyrite FeS2 is commonly associated with coal and metal ore deposits Its oxidation occurs spontaneously in nature, causing environmental problems like Acid Mine Drainage AMD ,...

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Reprocessing feasibility of polymetallic waste rock for ,

Abstract Mining operation produces significant volumes of waste rocks WR characterised by high heterogeneity in their physical, mineralogical and hydrogeological properti The purposes of this study were to assess the acid-generating potential, evaluate reprocessing feasibility of polymetallic WR using desulphurisation process ie, gravity separation and flotation and study the ,...

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Mining waste set to grow, but reduce, reuse, recycle ,

07-09-2018 0183 32 Further, over the forecast period, 2018 to 2022 , underground mine sealing technologies are projected to develop and promote acid mine drainage treatment in ,...

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Control of acid rock drainage from mine tailings through ,

Acid mine drainage detrimentally affects thousands of surface watercourses throughout the world and costs tens of millions of dollars annually in site remediation expenditur This process is accelerated by the activity of iron- and sulfur-oxidizing bacteria which grow chemolithotrophically in mine tailings...

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Tailings reprocessing as source control for acid rock ,

31-12-1995 0183 32 OSTIGOV Book Tailings reprocessing as source control for acid rock drainage Title Tailings reprocessing as source control for acid rock drainage Full Record...

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CONTROL OF ACID ROCK DRAINAGE FROM MINE TAILINGS ,

CONTROL OF ACID ROCK DRAINAGE FROM MINE TAILINGS THROUGH THE ADDITION OF DISSOLVED ORGANIC CARBON by Paul John Sturman A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Engineering MONTANA STATE UNIVERSITY Bozeman, Montana November 2004...

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reprocessing mine tailings to control acid rock drainage

CONTROL OF ACID ROCK DRAINAGE FROM MINE CONTROL OF ACID ROCK DRAINAGE FROM MINE TAILINGS THROUGH THE ADDITION OF DISSOLVED ORGANIC CARBON by Paul John Sturman A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Engineering MONTANA STATE UNIVERSITY Bozeman, Montana November 2004...

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reprocessing mine tailings to control acid rock drainage

reprocessing mine tailings to control acid rock drainage Acid mine drainage AMD or acid rock drainage ARD is considered as one of the main pollutants of water in many countries that have historic or current mining activiti...

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New approaches for extracting and recovering metals from ,

15-05-2017 0183 32 Exposure of mine tailings to both oxygen and water facilitates the microbially-catalysed oxidative dissolution of the sulfide minerals they contain, generating acidic waste waters that contain elevated concentrations of dissolved metals and sulfate Acid mine drainage AMD is a widely-reported environmental pollutant, with global distribution...

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Acid mine drainage

Acid mine drainage, acid and metalliferous drainage AMD , or acid rock drainage ARD is the outflow of acidic water from metal mines or coal min Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks ,...

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Tailings Reprocessing as Source Control for Acid Rock ,

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EVALUATION OF ORGANIC COVERS OVER OXIDIZED MINE TAILINGS ,

OXIDIZED MINE TAILINGS TO CONTROL ACID MINE DRAINAGE A Thesis Submitted to the College of Graduate Studies and Research in Partial Fulfillment of the Requirements for the Degree of Master of Science in the Department of Civil Engineering University of Saskatchewan Saskatoon By...

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Reprocessing Mine Tailings To Control Acid Rock Drainage

Reprocessing Mine Tailings To Control Acid Rock Drainage 2017-03-06 Utilization of Atikokan coal fly ash in acid rock drainage control from Musselwhite Mine tailings HL Wang, , Acid rock drainage ARD is the acidic effluent, , posal of coal fly ash and acid-generating mine tailings are Send Email email protected...

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On the neutralization of acid rock drainage by carbonate ,

The net result of acid-generating and-neutralizing reactions within mining wastes is termed acid rock drainage ARD The oxidation of sulfide minerals is the major contributor to acid generation Dissolution and alteration of various minerals can contribute to the neutralization of ac Definitions of alkalinity, acidity, and buffer capacity are reviewed, and a detailed discussion of the ,...

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Sulfide Mineral Coating Process To Control Acid Rock Drainage

Acid rock drainage ARD is a significant environmental problem ARD is caused by chemical and biological processes ie, the oxidation of sulfide minerals in mine tailings and waste rock and characterized by acidic water containing heavy metals...

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