case history of a copper mine tailings pond reclamation in ducktown ...

Following the discovery of copper in 1843 (Safford, 1869), mining in the Copper Basin was extensive. Countless tons ... decisions made relative to reclamation of the copper mine tailings pond at Ducktown, Tennessee. Figure 1. .... Due to procedural differences in ore processing and original rock composition, chemistry was.

Tailings - Wikipedia

Tailings, also called mine dumps, culm dumps, slimes, tails, refuse, leach residue or slickens, terra-cone (terrikon), are the materials left over after the process of separating the valuable fraction from the uneconomic fraction (gangue) of an ore. Tailings are distinct from overburden, which is the waste rock or other material...

geochemistry of tailings at malanjkhand copper mine ... - [email protected]

2.1 Case Examples of Copper Mine Tailings Composition. 5. 2.2 Environmental Effects of Copper Mining. 6. 2.3 Malanjkhand Copper Deposit. 7. CHAPTER 3. METHODOLOGY. 9. 3.1 Sample Collection. 10. 3.2 Mineralogical Study. 10. 3.3 Elemental Study. 11. CHAPTER 4. RESULTS AND DISCUSSIONS. 14. CHAPTER 5.

New approaches for extracting and recovering metals from mine ...

May 15, 2017 ... A two-stage mineral leaching and metal recovery protocol was developed to extract copper from tailings generated as waste materials in two mines currently operating in ... Mine wastes vary depending on their physical and chemical composition, the type of mining and the way the mineral is processed.

Waste Mine Tailings Characterisation - 911 Metallurgist

Jun 16, 2017 ... Waste Mine Tailings Characterisation ... Wastes from Mining Metal Ores and Non-metal Minerals; Character of Mine Tailings Wastes .... Approximately 81 percent was generated by the copper, iron, uranium, and phosphate industries combined, including 84 percent of the overburden and waste rock from...

GEOPOLYMERIZATION OF COPPER MINE TAILINGS By Fenghua ...

mine tailings were provided by a local open pit copper mine. Table 1 and table 2 show the major elemental composition and chemical composition of mine tailings, feed ore, respectively. What the differences between the mine tailings and feed ore in chemical composition were only the copper and molybdenum. Element.

Geochemistry and mineralogy of Cu and Co in mine tailings at the ...

Jul 30, 2009 ... Two sulfidic mine tailings within the Zambian Copperbelt in the north of Zambia have been studied: Chambishi, representing ... include large quantities of copper and cobalt in surface rims (up to 7.0 wt.% of Cu and up to 2.0 ..... This is consistent with the solid phase composition and mineralog- ical data (see...

Tailings.info What are tailings? - Their nature and production

What are tailings? The waste from the mining industry.

Management of Sulfide-Bearing Waste, a Challenge for the Mining ...

Feb 8, 2012 ... composition, chemical composition and physical properties such as grain size, porosity and hydraulic conductivity of the ... Keywords: sulfide oxidation; acid rock drainage; tailings management; waste ... south central Sweden was polluted by drainage waters from the Falu copper mine. However, it was.

How are waste materials managed at mine sites | MiningFacts.org

The environmental impact of mine waste depends on its type and composition, which vary considerably with the commodity being mined, type of ore, and technologies used to process the ore. [2] For instance, where waste rock and tailings contain significant quantities of sulphide minerals and are exposed to air and water,...

Tailings ponds for mining and oilsands waste: FAQs - Technology ...

What's in them, what makes them risky and how they're regulated. CBC News Posted: Aug 05, 2014 12:21 PM ET Last Updated: Aug 10, 2014 11:00 PM ET. The breach of a tailings pond at the Mount Polley copper and gold mine in B.C. has released five million cubic metres of mining wastewater into local waterways.

Characterization of Mine Leachates and the Development of a ...

List of Figures Figure Number/Description Page 3-1 Composite process solution monitoring results 3-3 3-2 Composite Meteoric Water Mobility Test leaching results 3-8 3-3 Composite monitoring results from copper mine tailings basins 3-11 4-1 Example of Stiff Diagram used to characterize the composition of mine waste...

geologic and environmental characteristics of porphyry copper ... - Epa

iii. Figure 3. Idealized cross section through a porphyry copper deposit showing the relationship of the ore zone to .... 15. Table 5. Geochemical composition of porphyry copper tailing samples. .... deposits hold less potential, in the absence of infrastructure from other mine development in the region, because of their typical...

The chemistry and toxicity of discharge waters from copper mine ...

Jul 19, 2017 ... risks, and requiring action to prevent further release of chemicals and to initiate restoration of the area. Keywords Copper mining . In vitro toxicity . Health risks . Tailings . Elemental composition. Introduction. Copper (Cu) is one of the most economically important metals with demand expected to significantly...

mine tailings, industrial waste - prometia

Mapping the secondary resources in the EU (mine tailings, industrial waste)? has been produced in the context of .... from copper, iron, taconite, lead, and zinc ore concentration processes and uranium refining, as well .... The chemical compositions of the Molybdenum flotation tailings and the particle size distribution and.

Copper production & environmental impact - GreenSpec

Spent ore consists of the material remaining in either dump or heap leach piles when leaching ceases. Spent ore from heap, dump, and vat leaching may contain residual lixiviant and other constituents of the ore. Some operations may refer to wastes from vat leaching operations as tailings. (Mining Industry Profile: Copper)...

grinding of mine tailings - YouTube

Aug 25, 2016 ... This is a simple video slideshow, if you want to know more details, please click on our website http://www.gospellightbaptistschool.com , we will provide a p...

Utilisation of iron ore mine tailings for the production of geopolymer ...

Dec 20, 2014 ... These properties were compared with the requirements recommended by the relevant Australian Standards and the American Society for Testing and Materials (ASTM). X-ray diffraction (XRD) analysis was carried out to study the difference in the phase composition of the original mine tailings and the...

Factors influencing the composition of bacterial ... - CiteSeerX

Introduction. Mining activities, such as copper mining, have generated large volumes of a variety of metal-rich residues, such as sterile piles, lixiviation piles, tailing dumps, mine efflu- ents, smelter dust and slags (Environment Australia. 1999). Inadequate management and abandonment of these residues have resulted in...

and SCIENTIFIC GROUP OF THE LONDON PROTOCOL

of tailings for either the Batu Hijau or Grasberg operations mentioned above. Nevertheless, on the basis of average tailings compositions (mg metals per kg tailings) from four copper mines in. Arizona, U.S.A. (Pond, et. al., 2005), (see Table 2), it seems likely that the annual discharges to coastal waters of metals from mining...

Enhancement experiment on cementitious activity of copper mine ...

Sep 25, 2017 ... time and roasting temperature. The cementitious activity index of copper mine tailing are identified by the leaching analysis. Scanning Electron Microscope (SEM), IR and XRD analysis are used to investigate the particle morphology and mineral composition of copper mine tailings. 2. Materials and Methods.

Marine and Riverine Discharges of Mine Tailings - International ...

Apr 2, 2012 ... available on the topic of marine and riverine disposal of mine tailings, and a great deal of controversy about the .... Mine tailings are what is left over from the mined ore after the target metal (e.g., copper or gold) has .... Reduction in species composition/abundance and biodiversity of marine communities. 3.

The viability of using the Witwatersrand gold mine tailings ... - SAIMM

Copper mine tailings bricks have been found to have good physical and mechanical properties such as a water absorption of. 17.7%, compressive strength of 260 ... their compositions. The compositions are also relatively similar to the typical clay material used in brickmaking. The waste materials all have a predominantly...

Ecological restoration alters microbial communities in mine tailings ...

Apr 29, 2016 ... Revegetation has been reported as main reason altered the soil chemical composition and bacterial community diversity in mine tailings and mine .... Similar results have been reported in other studies of ecological restoration in copper mine tailings, lignite mine areas, post-mining afforested soils and a...

Utilisation of iron ore mine tailings for the production of geopolymer ...

Dec 20, 2014 ... These properties were compared with the requirements recommended by the relevant Australian Standards and the American Society for Testing and Materials (ASTM). X-ray diffraction (XRD) analysis was carried out to study the difference in the phase composition of the original mine tailings and the...

Rehabilitation of Mine Tailings - Carnegie Department of Global ...

It willbring the total tailings area at Copper Cliff to approximately 2226ha. Two smaller tailings areas totalling approximately 80ha, are located adjacent to the mill at Levack Mine and at the Frood-Stobie complex. Although it is difficult to come up with an average composition of tailings, since the composition will vary with the...

Historic Mills and Mill Tailings as Potential Sources of ...

the chemical composition of water, soil, sediment, and mine waste in the HRB, (2) the natural background chemistry of ... Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Significant deposits of gold, silver, copper, lead, and zinc in the United States: U.S. .... Failure of Tailings Impoundments During Extreme Storms.

Geotechnical Properties of Mine Tailings - ASCE Library

Sep 14, 2016 ... constant for the fine iron tailings, whereas for the fine copper tailings, the coefficient of consolidation gradually increased. ..... and mine type, but also depends on the grade of mine, mining technology, mill process, deposition method, mineralogical composition, etc. According to the results of the...

Mine Tailings - Ground Truth Trekking

Dec 15, 2010 ... Mine tailings' size and composition depends on the mining method. For hardrock metal mines, tailings are usually a very fine mud or powder, which is left over after ore is crushed and valuable minerals are extracted from it. Tailings may also contain chemicals used for mineral extraction. Tailings are distinct...

a remote sensing and gis method for detecting land surface ... - asprs

method detected the tailings impoundments of the nine highest producing copper mines active in Arizona in 2000 and four inactive copper mines. No large-scale .... likely because copper and gold mill tailings are similar in physical composition and are shown to have an overlap in sediment grain size (Qiu and Sego, 2001).

Bacterial community composition in reclaimed and unreclaimed ...

Jul 24, 2013 ... Full Length Research Paper. Bacterial community composition in reclaimed and unreclaimed tailings of Dexing copper mine, China. Xuehui Xie, Wenxiang Zhu, Na Liu and Jianshe Liu*. College of Environmental Science and Engineering, Donghua University, Shanghai, China. Accepted 16 October, 2012.

Factors influencing the composition of bacterial communities found ...

Feb 3, 2006 ... Mining activities, such as copper mining, have generated large volumes of a variety of metal-rich residues, such as sterile piles, lixiviation piles, tailing dumps, mine effluents, smelter dust and slags (Environment Australia 1999). Inadequate management and abandonment of these residues have resulted in...

SSR105 - Characterisation and impact assessment of mine tailings ...

The sediments are rich in sulphide minerals, mainly pyrite (iron-sulphide), and are derived from the Mount Lyell copper mine. This material is currently residing ... The composition of groundwater in the tailings is highly variable, and steep chemical gradients are present at the water table in the delta. Groundwater varies from...

The environmental impact of seepage from gold mine tailings dams ...

from acid mine drainage from tailings materials through the unsaturated zone into the groundwater ... Mineralogical composition of gold mine tailings. 17. 2.3 ..... Igeo. M. MAX. MIN. MOB. Aluminium. Arsenic. Barium. Cadmium. Calcium. Carbon. Chlorine. Chromium. Cobalt. Copper. Iron. Hydrogen. Lead. Magnesium. Al. As.

Geochemical and mineralogical characterization of tailings of the ...

Jun 1, 2017 ... Abstract: The Dexing copper mine is the largest open pit copper mines in Asia, with mining and beneficiation history stretching back more than half a century; consequently it has large amounts of ore tailings. The mineralogy, chemical composition and distribution of elements in the impounded tailings are of...

Caring for waste: Handling tailings in a Chilean copper mine

Caring for waste: Handling tailings in a Chilean copper mine. Sebastian Ureta. Departamento de Sociologıa, Universidad Alberto Hurtado, Santiago, Chile. Abstract. How do .... by the personnel of a Chilean copper mine: care. In social ..... sandy due to the geology of local soils, which had the kind of composition that most.

WO2014055558A1 - Production bricks from mine tailings through ...

Oct 1, 2012 ... Methods for utilizing copper mine tailings for production of eco-friendly bricks based on the geopolymerization technology and bricks so produced (Fig. ... To investigate the effect of moisture content and forming pressure on the microstructure and phase composition of the geopolymer bricks, SEM imaging...

Use of Gold Mine Tailings in Production of Concrete-A Feasibility ...

1. Introduction. Gold mine tailings are one of the primary waste products of mining operations. They comprise of fine grained particles of the parent rock from which the ore is extracted. The characteristics of tailings depend upon the composition of parent rock. The disposal of this material is a major environmental problem for...

Frontiers | Plant-Mediated Changes in Soil N-Cycling Genes during ...

Plant-Mediated Changes in Soil N-Cycling Genes during Revegetation of Copper Mine Tailings. Yang Li1, Zhongjun Jia2, Qingye Sun1*, Jianhua Cheng1, Yang Yang1, Jing Zhan1 and Dan Wang1. 1School of Resources and Environmental Engineering, Anhui University, Hefei, China; 2State Key Laboratory of Soil and...

Valorising South-West Banat Copper Mine Tailings in Agriculture

tailings from the Sasca Montana copper mining. Stored in landfills, mine tailings are carried away by the wind polluting the soil, the water, the flora, the fauna, and the humans. * Corresponding author. Tel: +40-256-277-009. Fax: +40-256-277-122 e-mail:[email protected] Data regarding the chemical composition.

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