environmental aspects in smelting and refining

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Nickel Smelting and Refining

Nickel Smelting and Refining. Industry Description and Practices. Primary nickel is produced from two very dif- ferent ores, lateritic and sulfidic. Lateritic ores are normally found in tropical climates where weath- ering, with time, extracts and deposits the ore in layers at varying depths below the surface. Lat- eritic ores are...

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Environmental Impacts of Mining and Smelting | Occupational ...

Global releases of mercury from smelting and refining nonferrous metals total 710 metric tons/year – the second largest source after power plants. Estimates of releases of mercury into the environment from artisanal/ small scale gold mining range from 400 to 1,102 metric tons/year. Airborne emissions from metal mining and...

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ENVIRONMENTAL CODE OF PRACTICE Base Metals Smelters and ...

Non-ferrous metals – Refining – Environmental aspects – Canada. 4. Smelting – Environmental aspects – Canada. 5. Best management practices (Pollution prevention) – Canada. i. Canada. Pollution Prevention Directorate. Metals Section. ii. Canada. Environment Canada. TD195.F6E58 2005. 669'.028'6. C2005-980316-...

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Smelting and Refining Operations

Primary smelting and refining produces metals directly from ore concentrates, while secondary smelting and refining produces metals from scrap and process waste. ..... Other Health Effects. The hazards to workers, the general population and the environment resulting from the emission of fluoride-containing gases, smokes...

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The environmental impact of gold production - European Commission

Oct 18, 2012 ... knowledge about the environmental impacts of the different production stages, such as mining, extraction from the ore, recovery and refining. The study conducted a life-cycle assessment (LCA) to provide estimates of the energy use, water use, waste production and GHG emissions of gold production using...

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Environmental Impacts of Metal Ore Mining and ... - CiteSeerX

the greatest degradation of the environment. Copper mining produces extensive mine wastes and tailings and Cu smelting emits approxi- mately 0.11 Mg of S per Mg of Cu produced in the USA. Zinc and. Pb smelters release large quantities of Cd and Pb into the environ- ment. Metal smelting and refining produce gaseous...

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How can metal mining impact the environment? | American ...

Modern mining operations actively strive to mitigate potential environmental consequences of extracting metals, and such operations are strictly regulated in the United States. The key to effective mitigation lies in implementing scientific and technological advances that prevent or control undesired environmental impacts.

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Copper production & environmental impact - GreenSpec

Refining. Sulfide Ores. After smelting, the 99% copper rich material is poured into molds as "anodes" using a casting wheel and transported to the plating house. In this form, they are ready for the next step, which involves dissolving and re-plating the copper to increase its purity level.

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Environmental Impacts of Lead Ore Mining and Smelting (PDF ...

Dec 19, 2017 ... Lead smelters release large quantities of Cd and Pb into the environment as well as smelting and refining produce gaseous (CO2, SO2, NOx, etc.) and particulate matter emissions, sewage waters, and solid wastes; however, these pollutants take a lead to effects human health. A quantitative evaluation of...

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Environmental Impacts of Metal Ore Mining and Processing: A Review

The impact of mining and smelting of metal ores on environmental quality is described. ... Metal smelting and refining produce gaseous (CO2, SO2, NO(x), etc.) ... A quantitative evaluation of the environmental health effects of mining and smelting is difficult because of the complexity of factors involved and lack of consistent...

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Here's The 'Truth And Consequences' Of Copper-Nickel Mining . . .

mental aspects of the copper-nickel mining process, and ordered the creation of an "Inter-Agency Task ... In assessing the environmental effects of a copper-nickel industry in Minnesota, the report separates the ... extraction and refining of base metals: about 100 gallons per ton of crushed ore processed, assuming the plant...

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Environmental impact of iron ore mining - Wikipedia

The environmental impact of iron ore mining, in all its phases of, from excavation to beneficiation to transportation, may include detrimental effects on air quality, water quality, and biological species. Contents. [hide]. 1 Introduction. 1.1 Iron ore; 1.2 Mining and processing. 2 Issues. 2.1 Air quality; 2.2 Acid rock drainage; 2.3...

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Impacts of lead/zinc mining and smelting on the environment and ...

Environ Monit Assess. 2012 Apr;184(4):2261-73. doi: 10.1007/s10661-011-2115-6. Epub 2011 May 14. Impacts of lead/zinc mining and smelting on the environment and human health in China. Zhang X(1), Yang L, Li Y, Li H, Wang W, Ye B. Author information: (1)Department of Environmental Geography and Human Health...

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Occupational and Environmental Health in the Aluminum Industry ...

Epidemiological studies exploring the potential health impacts on aluminum industry workers with EMF exposure are very ... A number of traditional ergonomic stressors exist within aluminum smelting and refining; however, there are few published...

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Environmental Cost of Refineries

The refining processes that are typically found paired with hardrock mining are just as harmful to the environment as the mining itself; perhaps even more so. ... The state that the metals are in dictates the severity of the toxicological effects in organisms, since the molecular state of a metal determines how easily it can be...

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Lead Smelting - :: WorstPolluted.org : Projects Reports

Both secondary and primary smelting processes can be responsible for releasing large amounts of lead contamination into the surrounding environment. ... Once the lead ore is mined, it must undergo several different processes in order to be turned into usable or metallurgical lead material: sintering, smelting, and refining.

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The Environmental Costs of Platinum-PGM Mining - User Web Pages

mine, flotation concentrator, smelter and refinery. ... allegations of significant environmental and social impacts such as water pollution, unfair village relocation .... Mine & concentrator. Smelter. Resource / project. Refinery. Ni-Cu-PGM project. Ni-Cu-PGM mine. Pilanesberg. Complex. Pretoria. Johannesburg. Middleburg.

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Recent operation and environmental control in the Kennecott Smelter

design of the smelter and refinery and includes recent production and emission data and modifications carried out to allow ... emphasizes the unique features required to achieve environmental and quality goals and compares ..... conventional smelter. Any delay in the anode operation impacts directly on the flash converting...

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Air Pollution Aspects of Brass and Bronze Smelting and Refining ...

AIR POLLUTION ASPECTS OF BRASS AND BRONZE SMELTING AND REFINING INDUSTRY Brass and Bronze Ingot Institute and National Air Pollution Control Administration U. S. DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE Public Health Service Consumer Protection and Environmental Health Service...

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METALS RECYCLING: ECONOMIC & ENVIRONMENTAL ... - insead

Jun 9, 1997 ... R. U. Apes Metals Recycling: Economic end Environmental Implications. June 9, 1997. METALS RECYCLING: ECONOMIC ... reduced environmental impact are less obvious but increasingly important. The obstacle to greater use recycling has ..... or zinc mining and refining. These metals are widely used in...

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An oil refinery in the North Atlantic: environmental profile

Impact Assessment and Project Appraisal, volume 18, number 4, December 2000, pages 309–322, Beech Tree Publishing, 10 Watford Close, Guildford, Surrey GU1 2EP, UK. Environmental ... Keywords: oil refinery; North Atlantic; environmental impact. Júlíus Sólnes is .... forward to build a 240,000 ton aluminium smelter at.

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Environmental impact of the processes - Jernkontoret

Jun 8, 2017 ... The production and treatment processes are under continuous development in order to minimise the environmental impact on the air, water and the ground. ... Hydrocarbon emissions from melting furnaces can be related to variations in the processing conditions in the furnaces and probably to the scrap...

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Environment - Alumina Limited

Energy - The refining of bauxite ore into alumina and the subsequent smelting of aluminium require significant energy resources resulting in the significant stewardship issues of energy efficiency and emissions management. AWAC's latest operating mine at Juruti in Brazil commenced in September 2009 following in-depth...

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Fact sheet - Copper | Resources | Oresome Resources - Minerals ...

Includes descriptions of both underground and open-cut mining; Explains concentration of the ore by froth flotation, as well smelting and refining of copper metal. Relates the properties of copper to its uses; Includes some representative statistics about copper in Australia; Includes a table listing environmental impacts of...

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Environmental Strategies in the Mining Industry: One Company ...

Given the increasing level of attention to environmental issues in the mining business, it is even more critical today, as illustrated by the experience of Kennecott ... Operations include the Bingham Canyon Mine, the Copperton and North Concentrators, the Magna Tailings Impoundment, the Garfield Smelter and Refinery, the...

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The Effectiveness of the Environmental Risk Management Program ...

The impacts of mining on the near and distant environment are immense. At Trojan Nickel Mine. (TNM) and Bindura Smelting and Refinery (BSR) over 1,500 workers and their dependents, villagers/farmers and their animals/crops and water sources - Pote and Mazowe Rivers - are vulnerable to emissions from mining and...

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Environmental performance - Implats

Environmental performance. Implats recognises that its mining, smelting and refining operations have an impact on the natural environment and the communities surrounding its operations. A comprehensive group management strategy is in place to minimise and mitigate these impacts and the risks associated with them.

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environmental effects of foreign investment versus domestic ... - OECD

This document intends to determine the environmental impact of FDI in the mining sector in Latin America. Considering the scarcity of information available on the .... mining production was responsible for 7% of the national product, an amount increasing to 10% when smeltering and material refining activities are included.

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Extraction and Processing of Minerals & the Environmental Impacts ...

After the overburden is cleared from the ore, explosives are used to break up the ore material that is being removed from the ground, which is then taken away to be refined. The size of the ore bed increases as mining continues, and eventually, the pit becomes a very large bowl-shaped hole in the earth's surface. When the...

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Petroleum Coke: Industry and Environmental Issues - National ...

Petroleum Coke: Industry and Environmental. Issues. Anthony Andrews. Specialist in Energy Policy. Richard K. Lattanzio. Analyst in Environmental Policy. October 29, 2013 ... Petcoke is a co-product of several distillation processes used in refining heavy crude oil. Nearly ..... for use in aluminum smelting. The anodes act as...

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Towards sustainable metal cycles - The University of Sydney

Developing an approach that delivers improved environmental performance for metal cycles is the aim of this thesis. Integral to the sustainable use of metals is the need to reduce environmental impacts associated with the mining, refining and recycling activities that supply metal to the economy. Currently, the links between...

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The Environmental Impact of Aluminum (And Why it's Still Better ...

Fortunately, the environmental impact of that process can be somewhat balanced out by post-mining rehabilitation, efficient recycling, and generally reducing our ... All refining processes use varying levels of electricity and water, which can cause higher carbon emissions, create air and water pollution, and even noise and...

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What Aluminum Extraction Really Does to the Environment ...

Nov 9, 2010 ... What Aluminum Extraction Really Does to the Environment ... Open-pit mining (also known as surface, open-cast or strip mining), in which large swaths of earth are excavated relatively close to the surface in order to remove valuable materials, enables workers to locate raw bauxite. ... Environmental impact.

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Aluminum Beverage Cans – Environmental Impact | Green ...

Jul 17, 2014 ... Making aluminum is harmful to the environment and the people who live near mining, refining, or smelting operations. Some companies involved in the aluminum industry are working to increase energy efficiency, decrease pollution, remediate mining areas, and reduce impacts to local communities, but...

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Sources of pollution: metals and mineral processing - Canada.ca

Aug 12, 2013 ... Environment Canada works to address the environmental impacts of metals and mineral processing. The main processing phases are separation of valuable minerals from unwanted minerals, recovery of valuable minerals from the ore, and metals production and refining. Most of the emissions from...

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A Toxic Century: Mining Giant Asarco Must Clean Up Mess : NPR

Feb 4, 2010 ... After years of polluting and contaminating the environment, the American Smelting and Refining Company's notorious copper-smelting plant in El Paso, Texas, will be cleaned up this year. Asarco will ... Despite Escandon's enduring company loyalty, Asarco's impact on public health in El Paso is irrefutable.

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Innovative System for the E-Scrap Treatment at Naoshima Smelter ...

Innovative System for the E-Scrap Treatment at. Naoshima Smelter and Refinery. Masayuki Kawasaki. Mitsubishi Materials Corporation for. Workshop 2014 of the Asian Network for Prevention of. Illegal Transboundary Movement of Hazardous Wastes. 28th November 2014...

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environmental aspects of bauxite, alumina and ... - UNCTAD

Mar 15, 1985 ... environmental effects is described below for each production stage. Box 3. Bauxite, alumina, aluminium production. Activity. Product. Processes and inputs. Mining. Bauxite. De-bushing, removal of overburden. Mining. Washing, cycloning and filtering/drying. Refining of. Alumina. Drying of wet bauxite.

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potential environmental impacts of mining - Alternative Projets miniers

environmental impacts that affect our perception of mining. P A mine is a ... of mining sources. P Potential Environmental Impacts are greatly influenced by ... DUSTS. SCRAP. METALS. Smelting. (pyrometallurgy). Refining. Fabrication. Solvent extraction. Electro- winning. Removing impurities. Modified from warhurst 1999...

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Panhandle Smelting and Refining Company Preliminary ...

Figure 2-3 1909 Sanborn Fire Map of the Panhandle Smelting and Refining Company..........6. Figure 3-1 One Mile ... Smelting and Refining Company (PSRC) located in Ponderay and the Whitedelph Mine and Mill located in .... and to come to an amicable resolution of any environmental issues which may arise. Table. No.

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