problems with sulfide mining

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Appendix 2 Environmental and Social Impacts of Mining

Appendix 2 Environmental and Social Impacts of Mining

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. ... .2 Predicting the potential for acid drainage can help determine where problems may occur. Methods vary from simple ...

Tailings Dams Where Mining Waste is Stored Forever

Tailings Dams Where Mining Waste is Stored Forever

Jul 30, 2012 “The most common sulfide mineral is iron sulfide, pyrite. And what happens when you expose pyrite to oxygen and to water is that it breaks down chemically into a weak sulfuric acid.

Office of Wastewater Management Hardrock Mining

Office of Wastewater Management Hardrock Mining

In practice, avoiding mining in areas with acid generating potential may be difficult because of widespread distribution of sulfide minerals. Isolation of materials with the potential to generate acids is now being tried as a means of reducing the perpetual effects of mining …

A look inside the campaign that killed a sulfide mine at

A look inside the campaign that killed a sulfide mine at

Apr 30, 2014 Crown Butte mining company's illustration of its proposal to keep the New World Mine's tailings in a plastic-lined pit, 400 feet deep, alongside the Clarks Fork river near Cooke City, Montana.

Mining and Extraction Sulfide Ores Answers

Mining and Extraction Sulfide Ores Answers

This page answers questions posed on a KS3 education resource looking at copper mining, extraction and pyro processing of sulfide ores. This page answers questions posed on a KS3 education resource looking at copper mining, extraction and pyro processing of sulfide ores. About Copper.

Sulfide mining doublespeak Sulfide mining will not

Sulfide mining doublespeak Sulfide mining will not

Mar 16, 2009 A sulfide-mining bill recently introduced in the Senate and the House ... Not surprisingly, none of the mining representatives mention the air-pollution problems…

Risks to Human Health from Sulfide Ore Copper Mining

Risks to Human Health from Sulfide Ore Copper Mining

sulfide-ore copper mines must be fully evaluated to prevent creating major threats to public health. • Sulfide-ore copper mining has the potential to release numerous chemicals known to negatively affect human health, including mercury, arsenic, lead, asbestos-like fibers, and air pollution.

Mining Industry Copper Sulfide Ore and Flotation Process

Mining Industry Copper Sulfide Ore and Flotation Process

Jul 09, 2019 1 Types of copper sulfide ore (1) Single copper mineral Its ore characteristic is relatively simple, and the only useful component that can be recycled is copper. The gangue minerals are mainly quartz, carbonate and silicate. (2) Copper-sulfur ore Called copper-bearing pyrite. In addition to copper minerals, iron sulfide can be recovered, and the main mineral of sulfur is pyrite..low price environmental aluminum hydroxide flotation cell sell at a loss in Nukualofa

Sulfide Minerals an overview ScienceDirect Topics

Sulfide Minerals an overview ScienceDirect Topics

Mining and Pollution When iron sulfide minerals are exposed to the atmosphere and water, the water becomes acid and enriched in iron that eventually leaves yellow and reddish deposits in its wake. Other metal sulfides also react with the atmosphere and water to release toxic metals such as arsenic, cadmium, cobalt, copper, nickel, and zinc.

Sulfide Mining Sierra Club

Sulfide Mining Sierra Club

The mining of copper/nickel sulfide ores is a toxic type of mining that is risky to our environment, our workers and communities, and local economies. Mining sulfide rock releases acid and toxic metals and contaminants that pollute rivers and groundwater for hundreds of years, long after the profits are spent and the products buried in landfills.

Save the Boundary Waters Environment Minnesota

Save the Boundary Waters Environment Minnesota

Mining companies are pushing to conduct a toxic new form of mining, called sulfide mining, right next to the Boundary Waters. Runoff from sulfide mining can create toxic sulfuric acid and cause mercury contamination—both of which could flow into the Boundary Waters and pollute this precious area. We need President Obama to make sure we don't risk this natural treasure by allowing dangerous ...

Minerals in northern Minnesota pale in importance to the

Minerals in northern Minnesota pale in importance to the

Sep 24, 2019 This is a problem for all Minnesotans as the culture here appreciates leisure activities like fishing, hunting, and cabin life, all of which would be affected by sulfide mining.

Save Our Sky Blue Waters

Save Our Sky Blue Waters

Dangerous sulfide mining poses an unacceptable risk to the waters, wildlife and people of northern Minnesota and should not be allowed in our water rich environment. Contact the Governor and Lt. Governor at (651) 201-3400. MN Government website linked HERE . Protect our Land, Water, Wildlife and People . Reject Toxic Sulfide Mining!

Hydrogen Sulfide Formation and Potential Health

Hydrogen Sulfide Formation and Potential Health

Mar 29, 2013 Abstract. Coal is the world’s largest energy source for electricity generation and is mined on 6 continents. Sulfate contamination of surface and ground water from these mining and processing operations is well recognized and commonly monitored as a primary indicator of coal mining impact to surface water and groundwater.

Assessing Soil Quality in Areas Affected by Sulfide Mining

Assessing Soil Quality in Areas Affected by Sulfide Mining

Problems in Agricultural Soils Affected by Sulfide Mining Soil contamination by trace elements and other trace elements is a matter of great concern for governments. Characterizing, assessing and reclaiming a soil, especially aiming to change its use (e.g., from mining to farming) is in fact one of the current greatest environmental challenges.

Indonesia's EV battery aspirations unearth mining waste

Indonesia's EV battery aspirations unearth mining waste

Jan 15, 2021 Yet, problems surrounding their ongoing smelter projects foreshadow what might happen when similar, or even larger projects, commence. An unclear plan to manage environmental impact A mining site upstream of Lake Tiu. Photo courtesy of Muh Taufik/Jatam. Nickel is found in two types of deposits—nickel laterites and magmatic sulfide deposits.

Copper Sulfide Mining Earthworks

Copper Sulfide Mining Earthworks

Copper Sulfide Mining All of the mines (100%) experienced pipeline spills or other accidental releases. The most frequent spills were reported... At 13 of the 14 mines (92%), water collection and treatment systems have failed to control contaminated mine seepage,...

Sulfide Mining Minnesota Center for Environmental Advocacy

Sulfide Mining Minnesota Center for Environmental Advocacy

Help Us Stop Sulfide Mining Pollution With a 1700-acre open pit, tens of millions of gallons of groundwater pollution, and the largest permitted destruction of carbon-sink wetlands in Minnesota’s history, the PolyMet proposal would commit us to permanent destruction and risk -- both at levels without precedent in Minnesota.

Sulfide Mining Overview sosbluewaters.org

Sulfide Mining Overview sosbluewaters.org

Mining. Sulfide mining operations can take several forms depending on the ore body and quality. Mines are either open pit mines or underground operations. Open pit mines are most commonly used, 83 percent of copper mines in the US are open pit.14 This method is used because a greater

The debate over sulfide mining MPR News

The debate over sulfide mining MPR News

May 25, 2006 The term sulfide mining is a lightning rod. On a recent spring day, Minnesota's mining experts met in the Duluth convention center. The Sierra Club's Clyde Hanson used the …

Acid mine drainage from sulphide ore deposits SpringerLink

Acid mine drainage from sulphide ore deposits SpringerLink

Acid mine drainage is generally regarded as the principal environmental problem caused by the mining of sulphide ore deposits. Acid mine drainage results from the reaction of …

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