2020-5-17Sulfide 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 Acid Mine Drainage and find numerous examples all over the world of environmentally devastating and costly damage
2020-5-8Bill 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
Nickel is commonly present in two principal ore typessulfide or laterite. Sulfide ores are typically derived from volcanic or hydrothermal processes and usually include copper Cu andor cobalt Co and often precious metals such as gold Au or platinum Pt palladium Pd and rhodium Rh the platinum group metals or PGMs Naldrett 2002 Hoatson et al. 2006
A Comparative Analysis of Sulfide Mining Regulation in Michigan Minnesota Wisconsin and Ontario March 2012 National Wildlife Federation Note that this study was published prior to WI 2017 Act 134 that deregulated numerous aspects of metallic mining law including repeal of the Prove It First moratorium law
Sudden emission and casualty accidents caused by abnormal enrichment of hydrogen sulfide Hsub2subS in coal mines are becoming frequent increasingly causing major casualties and environmental pollution. Scholars in various countries have developed various measuring devices for hydrogen sulfide content in coal and rock formations and their calculation methods. The existing
2017-1-25Sulfide mining is very different from the Iron Mining that occurs in the NegauneeIshpeming Tilden and Empire mines and in the Keweenaw Copper Mines. The mining that is proposed on the Yellow Dog Plains and in other areas in the western U.P. deals with minerals that are imbedded in sulfide ores
2 Sulfide mineral any member of a group of compounds of sulfur with one or more metals. Most of the sulfides are simple structurally exhibit high symmetry in their crystal forms and have many of the properties of metals including metallic luster and electrical conductivity
Overview Health effects Environmental effects Sources of emissions References Description Hydrogen sulfide is used in the manufacture of pulp and paper digesting agent in tanneries and in sulfide ores. Most man made hydrogen sulfide is produced as a by-product of industry rather than for industry
2017-11-9In sulfide mining once rock is extracted from the pit a chemical process separates the unwanted tailings about 90 percent of the material from the desired metals for instance gold inc copper and silver. One of the chemicals used in the separation process is cyanide
Technical Report detailing trends in the Arrowhead regions economy and the potential effects of sulfide-ore copper mining Comment letter to the USDA Forest Service regarding the proposed withdrawal of land from the federal mineral leasing program Review of claims that mining would have positive economic impacts New York Times Magaine article on the issue citing our results
2019-12-21Language mandating a federal report that will include the effects of sulfide-ore copper mining on international waters was signed into law Friday under the 2020 federal funding package
2011-11-28Acid Mine Drainage and Effects on sulfide-rich mining environments are common where surface or groundwater pH is depressed by acid generation from sulfide minerals. 2. These environmental human health and fiscal consequences if not mitigated can have long-lasting effects
Richardson DB 1995 Respiratory effects of chronic hydrogen sulfide exposure. Am J Ind Med 2899108 CrossRef Google Scholar Sams J Beer K 2000 Effects of coal-mine drainage on stream water quality in the Allegheny and Monongahela River Basinssulfate transport and trends
The type of mining they are looking to do is sulfide mining which includes the mining of copper nickel gold and platinum. The protesting of the mining is a little less prevalent because locals are looking to revive their economy and bring people back to the Upper Peninsula
2020-5-22The Obama administration had put a temporary stop to copper-nickel mining on the edge of Minnesotas Boundary Waters Canoe Area Wilderness pending environmental review. The
The Wisconsin State Senate passed a bill yesterday November 7th 2017 that rescinds the states Prove It First law. Passed in 1998 with overwhelming bipartisan support 29-3 in the Senate and 91-6 in the Assembly Prove It First was a reaction to high-profile cases of pollution from sulfide mines gold silver copper etc
Minnesota Family Physicians Request Rule Change to Require Health Imapact Assessment of Sulfide Mining Meeting with state commissioners in fall of 2015 to request a health risk and health impact assessment for the PolyMet sulfide mine Duluth doctors were told that if they wanted a health impact assessment of sulfide mining they would have to change Minnesota rules for environmental review
Hydrogen sulfide is a contaminant associated with the same types of toxic effects as those found at increased prevalence in mining communities. Our investigation finds that this occurs at a concentration and frequency that warrants recognition by regulatory agencies and monitored as a commonly occurring mining-related contaminant and potential
2020-1-14Researcher Looks At Effects Of Sulfide Mining On Wild Rice Beds There is a potential for sulfide mining to make a return to the area. That will increase the level of sulfate in the overlying surface waters. It has been proven in many studies done in Minnesota that elevated sulfide conditions in the sediment poor water is the primary
2010-1-5 A permit shall be required for sulfide mining. Sulfide mines shall be bonded prior to receiving a permit. The permitting process will have ample opportunity for public input and public access to the application and supplementary documents. An Environmental Impact Assessment shall accompany all applications
Sulfide Mining PolyMets 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
2016-2-22Hardrock Mining Environmental Impacts. Overview This page describes some of the potential environmental effects of hardrock mining. Acid mine drainage is the drainage that results from sulfide oxidation in rocks exposed to air and water. Metal sulfide minerals are common constituents in the rocks associated with metal mining activity
Sulfide mining is a much more dangerous and harmful form of mining. Unlike ore-based mining sulfide mining extracts nickel copper and other deposits from sulfide-rich rock compounds. Kennecott Minerals is pushing for this project under the guise of responsibility sustainability and economics while various environmental groups and local
Sulfide mining in a water-rich environment like northern Minnesota is a high-risk gamble. We need to protect our water our families health our wildlife and taxpayer resources from pollution and harm caused by sulfide mining
2020-5-114 Metallic sulfide mining harms Native Americans and encroaches on their territories violating treaties infringing on Native American rights and threatening tribal sovereignty. The northern region of Wisconsin is home to numerous tribes that rely on sustainable and healthy populations of fish and other wildlife as well as forest