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TENORM: Copper Mining and Production Wastes | US EPA

Copper mining waste storage piles may be as large as 1,000 acres and typically include three types of waste; tailings, dump and heap leach wastes, and waste rock and overburden. The amount of marketable copper produced is small compared to the original material mined. Several hundred metric tons of ore must be handled for each …

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Assessment of undiscovered copper resources of the world, 2015

The amount of mean undiscovered porphyry copper resources that may be economic to extract varies as a function of likely depth to a deposit and quality of local infrastructure that could support mining. Sediment-hosted stratabound copper deposits contain 310 Mt of identified copper resources and are estimated to contain a mean of at …

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Copper profiles in the sediments of a mining-impacted lake

The sediments of Torch Lake, located in Houghton County, MI, USA, have been impacted by copper mining activity. Remediation of the site has focused on immobilizing shoreline tailing deposits. However, a large amount of copper remains in the mining-sourced sediment, and high copper concentrations …

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Mechanical and toxicological effects of deep-sea mining sediment …

Deep-sea mining activities are expected to impact deep-sea biota through the generation of sediment plumes that disperse across vast areas of the ocean. Benthic sessile suspension-feeding fauna, such as cold-water corals, may be particularly susceptible to increased suspended sediments. Here, we exposed the cold-water octocoral, …

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Environmental impact of a major copper mine spill on a river and

1. Introduction. The global pollution of river systems from metal mining and other sediment and water borne pollution sources is well established in the literature (e.g. Meybeck and Helmer, 1989, Schwarzenbach et al., 2010).The majority of studies have focused on temperate, perennial flowing systems in the northern hemisphere that have …

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Copper profiles in the sediments of a mining-impacted lake

Copper concentrations in the post-mining sediment are significantly (approximately 1. 5 to 2 times) greater than those in the underlying mine tailings. Current copper deposition …

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Sulfate reduction, molecular diversity, and copper amendment

Sulfate-reducing bacterial communities from coastal sediments with a long-term exposure to copper (Cu)-mining residues were studied in lactate enrichments. The toxicity of excess copper may affect sulfate-reducing bacterial communities. Sulfate reduction was monitored by sulfate and organic acid measurements.

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Copper profiles in the sediments of a mining-impacted lake

However, a large amount of copper remains in the mining-sourced sediment, and high copper concentrations persist in surface sediments. This study …

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VOLUME 3—APPENDICES E-J

Porphyry copper deposits are found around the world, most commonly in areas with active or ancient volcanism (Fig. 2). The economic viability of porphyry copper deposits is dictated by the economy of scale – they typically are low grade (average 0.44 % copper in 2008), large tonnage (typically hundreds of millions to billions of metric tonnes

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Copper profiles in the sediments of a mining-impacted …

Copper profiles in the sediments of a mining-impacted lake Author: McDonald, Cory P., Urban, Noel R., Barkach, John H., McCauley, Dennis Source: Journal of soils and …

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Copper profiles in the sediments of a mining-impacted …

This study analyzes sediment core and sediment trap data to determine the source of copper in the surface sediments. Materials and methods Sediment cores were …

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Copper profiles in the sediments of a mining-impacted lake

Purpose: The sediments of Torch Lake, located in Houghton County, MI, USA, have been impacted by copper mining activity. Remediation of the site has focused on immobilizing shoreline tailing deposits. However, a large amount of copper remains in the mining-sourced sediment, and high copper concentrations persist in surface sediments. This …

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PUBLIC HEALTH STATEMENT Copper

copper compounds or as free copper or, more likely, copper bound to particles suspended in the water. Even though copper binds strongly to suspended particles and sediments, there is evidence to suggest that some water-soluble copper compounds do enter groundwater. Copper that enters water eventually collects in the sediments of rivers, …

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Ecological Risk Assessment of Heavy Metals in Water Bodies …

The concentration of each heavy metal is Cr > Cd > Cu > Pb > Zn > Hg > Ni in descending order, and the distribution of heavy metals in sediments is similar to that in water. The difference of distribution of heavy metals in the sediment of copper mine rivers may be related to the discharge of mine wastewater, the accumulation of mining tailings ...

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Lake Roosevelt-Upper Columbia River | U.S. Geological Survey

Problem - Lake Roosevelt, formed on the Columbia River by the construction of the Grand Coulee Dam, is heavily contaminated with trace elements that were discharged as slag material from a smelter in Canada. A recent U.S. Geological Survey study reported that Lake Roosevelt bed sediments were contaminated with high concentrations of trace ...

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Superfund Sites in Reuse in Montana | US EPA

The 427-acre ACM Smelter and Refinery Superfund site is located in Cascade County, Montana, next to the unincorporated community of Black Eagle. In 1892, the Boston & Montana Consolidated Copper and Silver Mining Company began building the first smelter at the site. Operations to concentrate, smelt and refine ore began in 1893.

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Scientific, technical publications in the nuclear field | IAEA

Scientific, technical publications in the nuclear field | IAEA

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Mining and Water Quality | U.S. Geological Survey

Mine drainage is metal-rich water formed from a chemical reaction between water and rocks containing sulfur-bearing minerals. The resulting chemicals in the water are sulfuric acid and dissolved iron. Some or all of this iron can come out as solids to form the red, orange, or yellow sediments in the bottom of streams containing mine drainage.

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Copper profiles in the sediments of a mining-impacted …

Physical sediment properties and copper concentrations indicate the shoreline tailings piles are probably not a significant source of copper to the post …

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Copper profiles in the sediments of a mining-impacted lake

Copper profiles in the sediments of a mining-impacted lake Author: McDonald, Cory P., ... Journal of soils and sediments 2010 v.10 no.3 pp. 343-348 ISSN: 1439-0108 Subject: absorption, bulk density, copper, lakes, mine spoil, organic matter, radionuclides, remediation, sediments, United States

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Copper-binding ligands in deep-sea pore waters of the Pacific

A removal of the upper cm of sediment due to mining activity would therefore lead to a sudden dCu release into the near-bottom seawater instead of the usual "slow" diffusion of various metals ...

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Guidelines for copper in sediments with varying properties

Adequate protection for all benthic organisms is expected to be achieved for a OC-normalised copper concentration of 3.5 mg Cu g −1 OC in the <63 μm sediment fraction. For short-term exposures, the equivalent acute guideline is 11 mg < 63 μm Cu g −1 OC. The new SQGs incorporate a high degree of conservatism owing to the use of …

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Mercury, copper and zinc contamination in soils and fluvial sediments

Mercury, zinc and copper contamination was evaluated in soils and fluvial sediments from an abandoned gold mining site at Descoberto Municipality (southern Minas Gerais State, Brazil). Metals bioavailability and potential mobility were studied through physical, chemical and mineralogical characterization, geoaccumulation indexes …

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Copper profiles in the sediments of a mining-impacted lake.

Purpose: The sediments of Torch Lake, located in Houghton County, MI, USA, have been impacted by copper mining activity. Remediation of the site has focused on …

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Copper profiles in the sediments of a mining-impacted lake.

Purpose: The sediments of Torch Lake, located in Houghton County, MI, USA, have been impacted by copper mining activity. Remediation of the site has focused on immobilizing shoreline tailing deposits. However, a large amount of copper remains in the mining-sourced sediment, and high copper concentrations persist in surface sediments. This …

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Frontiers | Heavy-Metal-Resistant Microorganisms in …

Future mining of polymetallic nodules in the Clarion Clipperton Zone (Northeastern Pacific) is expected to affect all benthic ecosystems. The diversity, distribution, and environmental functions of …

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Source apportionment of trace metals in river sediments: A

With the three apportionment tools, similar source profiles of trace metals in sediments were extracted. Especially, the MCR-WALS and PMF models produced essentially the same results. ... copper tailings occupied the largest contribution (38.4-42.2%), followed by mining wastewater (29.0-33.5%), and agricultural activities (18.2-18.7% ...

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Copper profiles in the sediments of a mining-impacted lake

Purpose

The sediments of Torch Lake, located in Houghton County, MI, USA, have been impacted by copper mining activity. Remediation of the site has focused on immobilizing shoreline tailing deposits. However, a large amount of copper remains in the mining-sourced sediment, and high copper concentrations persist in surface …

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Copper Profiles in the Sediments of a Mining-Impacted …

PDF | PurposeThe sediments of Torch Lake, located in Houghton County, MI, USA, have been impacted by copper mining activity. Remediation of the site has...

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Chapter 9 Biogeochemistry of Copper in the Fly River

Since mining of the Mount Fubilan porphyry copper–gold ore body by Ok Tedi Mining Limited (OTML) began in 1984, the Ok Tedi/Fly River system (Fig. 9.1) has received high loads of mine-derived sediments enriched in particulate copper.The potential release of copper from these sediments and its toxicity to aquatic organisms in the river …

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