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Sulfide mining, unfortunately, poses several significant environmental risks. The most significant one is the threat to water quality. When sulfide ores are exposed to air and water, the result is sulfuric acid, which causes the leaching of potentially toxic heavy metals and the release of sulfates that contribute to the methylation of mercury.
Sulfide Mining Fact Sheet Sulfide Mining and Minnesotas Wild Rice Sulfate Standard Impact of Mining on Sulfate Levels in Minnesota The type of pollution that comes from sulfide mining is particularly dangerous to wild rice. Our state grain is extremely sensitive and more vulnerable to pollution and habitat loss than other species.
Metallic sulfide mining aka hard rock mining is the practice of extracting metals such as nickel, gold and copper from a sulfiderich ore body. Sulfides are a geologic byproduct of mining in this area, and by exposing sulfides to the air and water in our atmosphere, sulfuric acid can be created threatening to poison the nearby water
The Economics of Sulfide Mining. The State of Minnesota is relying on a fatally flawed economic impact analysis to support sulfide ore mining in Northeastern Minnesota. Dr. Evan Hjerpe and Dr. Spencer Phillips found that the UMD study being used to project the Economic benefits of sulfide ore mining is of low quality and limited scope in scope.
Most mining subsidiaries go out of business at some point in the future and sufide waste rock and risks of contamination become a problem for the state where sited. Abandon sufide mining sites out
What are some pros of sulfide mining, or just mining in general, beside the obvious economic boost and more jobs Answer Save. 1 Answer. Relevance. Ron. Lv 7. 4 years ago. Many sulfides are ores of many useful metals such as zinc, lead, copper, nickel and even iron. They are also sources of mercury, antimony, bismuth, and cobalt.
Sulfide Mining PolyMet39s mine will need active water treatment plants for hundreds of years after it closes, even though it only plans to mine for 20 years. MCEA is concerned about how the mine will prevent metals and sulfides in massive piles of waste rock from turning into sulfuric acid and leaching into nearby waters years, or even decades
Sulfide mining, which is sometimes referred to as hardrock mining, is the process of extracting trace amounts of copper, nickel and other metals from sulfide ores. When sulfide ore comes into contact with water or oxygen, a chemical reaction occurs and produces sulfuric acid, which is the same as battery acid.
Sulfide mining is a much more dangerous and harmful form of mining. Unlike orebased mining, sulfide mining extracts nickel, copper and other deposits from sulfiderich rock compounds. Kennecott Minerals is pushing for this project under the guise of responsibility, sustainability, and economics, while various environmental groups and local
Bill would end Wisconsin moratorium on sulfide mining, create easier path to future mining. The bill follows iron mining legislation as the next big mining debate in the state.
Sulfide mining record There is ample reason to be skeptical about mining companies and promoting agencies promises that sulfide mining can be done without polluting the water. One can merely search the internet for 34Acid Mine Drainage34, and find numerous examples all over the world of environmentally devastating and costly damage.
Mining gives people a portion of the resources needed for modern civilization, but it can also lead to environmental harm. While some are in favor of mining due to the resources it produces and the jobs it provides in the U.S., some are opposed to mining based on opposition to destructive mining practices and environmental concerns.
Yes, you read that right mining the riches of the oceans 911metallurgist presents a graphic which points out the pros and cons of deep sea mining. They echo my sentiments on the subject how do you feel after reading the information on this wonderful graphic Ocean Floor Mining Infographic By the team at 911 Metallurgist
The Economics of Sulfide Mining Benefits and Costs JP Rennquist Jun 26, 2013 No Comments Share This address was given by Dr. Tom Power, Professor Emeritus at the University of Montana about a week ago in Duluth.
Open Pit Mining Pros amp Cons AMD, or acid mine drainage, is a serious environmental concern associated with strip mining. AMD occurs when sulfiderich rocks that contain ore are broken down from exposure to water and air at the surface. The sulfides form sulfuric acid, which dissolves nearby rock and releases dangerous metalloids into local
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