The Clock is Ticking on Florida's Mountains of Hazardous ...

These are massive piles of waste materials called phosphogypsum that are left over from the fertilizer manufacturing process. ... Mosaic is currently mining phosphate rock on …

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Prospecting Gold Tailing Piles with a Metal Detector

Their tailings are easily recognizable by the large, uniform piles of gravel and rock that they left behind. Most dredges worked areas for many miles, so these places are not hard to spot. Historic dredge tailings can be found throughout California, Idaho, Oregon, Montana, Alaska, and most other western states in places where there was enough ...

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Why are there so many gypsum stacks in Florida? | wtsp.com

A giant dumpster meant to hold the waste that's produced from phosphate mining. However, Piney Point isn't the only mining facility with a massive gypsum stack. In …

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Grass cover density and metal speciation in profiles of a ...

The 7-year-old mine tailings pile P2 from Concepción del Oro has been revegetated spontaneously by xerophyte grasses, covering about the 30% of its surface. To elucidate the effect of the grass cover in the geochemical behavior of the sulfide minerals (SM) and metals, the strata of four selected profiles (P2-I, P2-II, P2-III and P2-IV, with high, middle, low, and null grass cover ...

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Environmental Risks of Mining

During separation, residual rock slurries, which are mixtures of pulverized rock and liquid, are produced as tailings, toxic and radioactive elements from these liquids can leak into bedrock if not properly contained. Underground Mining. Underground mining has the potential for tunnel collapses and land subsidence (Betournay, 2011).

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Red Moon Commences Seasonal Production at Gypsum Project ...

Gypsum Tailings Project. As previously reported, and in anticipation of increasing demand for natural rock gypsum, the Company has been evaluating further mine development opportunities at the historic Flat Bay gypsum deposits. This includes the reclamation of gypsum tailings left …

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Tailings Pile Photos and Premium High Res Pictures - Getty ...

Browse 188 tailings pile stock photos and images available or start a new search to explore more stock photos and images. mining tailings creating row of dirt piles in desert - tailings pile stock pictures, royalty-free photos & images. abandoned open pit gypsum mine - tailings pile stock pictures, royalty-free photos & images.

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Tailings Pile Photos and Premium High Res Pictures - Getty ...

abandoned open pit gypsum mine - tailings pile stock pictures, royalty-free photos & images. sun illuminated red dirt walls, crater like structure from opal mine tailings with earth mover, outback australia - tailings pile stock pictures, royalty-free photos & images.

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environmental impact of gypsum « BINQ Mining

Gypsum Tailings Piles in Mining, Environmental Impact … Describing the design, construction, operation, and closure of gypsum tailings stacks (tailings impoundments) in Florida and around the world. »More detailed

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Solved Question Completion Status: QUESTION 1 A001 ...

Gypsum - Naica, Mexico. The Problem 7 placemark takes you to Cave of the Crystals in Naica, Mexico. The cave is home to the largest selenite (a variety of gypsum) crystals in the world. Gypsum (CaSO 4 •2H 2 O) is a representative member of the sulfatemineral class where metal cations bond with the sulfate (SO 4) 2-anion. These crystals formed ...

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Preliminary Radiological Assessment of Radon Exhalation ...

----- EPA-520/5-79-004 A PRELIMINARY RADIOLOGICAL ASSESSMENT OF RADON EXHALATION FROM PHOSPHATE GYPSUM PILES AND INACTIVE URANIUM MILL TAILINGS PILES Thomas R. Horton Eastern Environmental Radiation Facility P. O. Box 3009 Montgomery, Alabama 36109 September 1979 U.S. ENVIRONMENTAL PROTECTION AGENCY Office of Radiation Programs …

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Tailings Dam Failures – Geotechnical Photo Album

This photo shows a failure of a tailings dam retaining gypsum tailings in Florida. It can be seen that the wet gypsum tailings flowed like a viscous liquid when the dam failed. This tailings dam in South Africa retained tailings from a platinum mine. Note the very flat slope formed by the tailings …

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A look at ways of controlling tailings to avoid future ...

Groundwater rising in the mine after closure will help to keep the tailings away from air, and help prevent acid generation. However, this method too has its downside: only about half of the rock pulled out of the mine as development rock or ore can be fitted back into the worked-out stopes, leaving the rest to be disposed of on surface.

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Historic Mills and Mill Tailings as Potential Sources of ...

tailings from the Rio Tinto mine that releases acid and metals to the Owyhee River, currently under consideration as a Super-fund-caliber site for reclamation. This report provides an overview of historic mills and their tailings materials in 40 mining districts in northern Nevada that are in or near the Humboldt River basin (fig. 1).

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Environmental Effects Of Mining Gypsum

Gypsum Tailings Piles in Mining, Environmental Impact ... Describing the design, construction, operation, and closure of gypsum ... environmental impact for gypsum and phosphogypsum mining and industrial wastes. Read more

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Tailings and Waste Rock - Clean Environment - Cameco ...

Management of waste rock – Waste rock comes in three general types, which must be managed appropriately:. mineralized waste rock: U 3 O 8 concentration of greater than 0.03%; non-mineralized waste rock: U 3 O 8 concentration less than 0.03%, and is categorized as either "clean" or potentially acid-generating, based on the likelihood of acidic seepage ; More about waste rock generation

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Red Moon Commences Seasonal Production at Gypsum Project

Gypsum Tailings Project As previously reported, and in anticipation of increasing demand for natural rock gypsum, the Company has been evaluating further mine development opportunities at the ...

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Feasability Analysis: A Comparison of Phosphogysum and ...

scale mining waste units. ... pile known as a gypsum stack. In the impoundment, the gypsum solids are allowed to settle; the liquid (process wastewater) is either directly removed ... that apply to uranium mill tailings impoundments that are codified at 40 CFR Part 192. These standards are …

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Discriminating Tailing Piles using VNIR Imagery and SVMs ...

The U.S. Department of Energy's Office of Scientific and Technical Information

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Gold mining an old tailings pile with a high banker - YouTube

Since the dredging season has frozen us out; we decided to give the tailings pile a dig. We setup high bankers, and started to shovel. Worked for about an ...

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Radioactive Material From Fertilizer Production | US EPA

Phosphogypsum, a waste product from manufacturing fertilizer, emits radon, a radioactive gas. It also contains the radioactive elements uranium, thorium and radium. Phosphate rock mining is the fifth largest mining industry in the United States in terms of the amount of material mined. The phosphate industry is concentrated in the southeastern ...

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Tailings - Earthworks

Tailings are Mine Waste. Tailings are the waste materials left after the target mineral is extracted from ore. They consist of: Trace quantities of metals such as copper, mercury, cadmium, zinc, etc. Additives used in processing, such as petroleum byproducts, sulfuric acid and cyanide.

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DRA-27a. CEMENTATION IN THE QUESTA ROCK PILES

different chemical systems cementing sulfide-rich tailings; 1) gypsum and melanterite and 2) Fe (III) minerals (goethite, lepidocrocite, ferihydrite, and jarosite). Dill et al. (2002) found that the resulting mineral assemblage in tailings piles from the Matchless pyrite-Cu mine were determined by the amount and type of ore and gangue minerals

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Tailings Pile Photos and Premium High Res Pictures - Getty ...

abandoned open pit gypsum mine - tailings pile stock pictures, royalty-free photos & images Rail cars sit on tracks in front of a tailings pile at the Nutrien Ltd. Cory potash facility in Saskatoon, Saskatchewan, Canada, on Monday, Aug. 12,...

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MINING AND PROCESSING BY-PRODUCT RESOURCES IN …

These tailings were the result of New Jersey Zinc Com- By-products from mining and processing plants, and coal-fired pany processing lead and zinc ore for about 250 years at this site. power plants are being utilized more as valuable resources in Vir- Independent chemical analyses from borings in the tailings pile in

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Mine Tailings Stock Videos and Royalty-Free Footage - iStock

Browse 204 mine tailings stock videos and clips available to use in your projects, or search for underground mine or mining to find more stock footage and b-roll video clips. Mullock Hill Scenery Scenery of a hill made of mullock and mine tailings with the toxic water. Mining waste disposal site.

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Phosphate | Florida Department of Environmental Protection

Four Corners Lonesome Mine_DEP Staff Jessica Duke_Dragline Phosphate Mining HPB4.jpg Florida's Phosphate MinesThere are 27 phosphate mines in Florida, covering more than 450,000 acres. Nine phosphate mines are currently active. Nine mines are 100 percent reclaimed and released from reclamation obligations. The remaining mines are either not started or are shut down.

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Tailings Pile Photos and Premium High Res Pictures - Getty ...

Find the perfect Tailings Pile stock photos and editorial news pictures from Getty Images. Select from premium Tailings Pile of the highest quality.

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EPA Superfund Record of Decision

as far as Gypsum, Colorado. The 235-acre Eagle Mine Site, referred to in this document as the "Site", includes the Eagle Mine Workings, the town of Gilman, the mine tailings pond areas, Rex ... north and the New Tailings Pile, now called the Consolidated Tailings Pile (CTP), was created.

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Red Moon Commences Seasonal Production at Gypsum Project ...

Gypsum Tailings Project . As previously reported, and in anticipation of increasing demand for natural rock gypsum, the Company has been evaluating further mine development opportunities at the historic Flat Bay gypsum deposits. This includes the reclamation of gypsum tailings left over from historic operations.

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Success Stories - Extraction and Tailings

This tailings treatment is based on a manipulation of the properties of the clay tailings with gypsum, a process that can reduce the water required to produce a barrel of bitumen by 25%. Our research work was critical to the commercialization effort because the manipulation of the clay behaviour required a change in process water chemistry.

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RECORD OF DECISION (ROD) EAGLE MINE SITE OPERABLE …

A Eagle Mine Seepage 48 B. Waste Rock Piles/Belden Non-Point Sources 50 C. Roaster Piles 52 D. Rex Flats/Old Tailings Pile Areas 53 E. Consolidated Tailings Pile 54 F. Maloit Park Wetlands 56 G. Water Treatment Plant 57 DC SELECTED REMEDY 59 X. STATUTORY DETERMINATIONS 68 ii'

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Galena Lead Mine Superfund Site, Galena, Kansas

Galena is a rural community located in southeast Kansas, within the Tri-State Mining District Superfund Site in Cherokee County. For over a century, lead and zinc was mined in the region and resulted in production of nearly 3,000 abandoned mine shafts in Cherokee County. Even though lead and zinc mining activities subsided in the latter half of ...

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(PDF) A comparative mineralogical and geochemical study of ...

This resulted in many studies and research projects on mine-tailings dynamics. From 1986 to 1994, a series of reports h m the Canadian Centre for Minerai and Energy Technology (CANMET)d e n done on minetailuigs impoundments, includiig the Waite Amulet mine-tailings in Québec (Petruk and Pinard, 1986; Jambor, 1986, 1987).

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Tailings - Wikipedia

In mining, tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an ore.Tailings are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed.. The extraction of minerals from ore can be done two ways: placer mining, which ...

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Tailings Photos and Premium High Res Pictures - Getty Images

abandoned open pit gypsum mine - tailings stock pictures, royalty-free photos & images. oilsands tailings pond - tailings stock pictures, royalty-free photos & images ... mining tailings creating row of dirt piles in desert - tailings stock pictures, royalty-free photos & images. aerial view of an bauxite tailings dams - tailings stock pictures ...

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Red Moon Resources – Gypsum Production ... - Salt Mining

This includes the possible reclamation of historic gypsum tailings left over from previous operations. It is estimated internally, based on drone surveys, that the tailings pile contains approximately one million tonnes of gypsum tailings. Particle size appears to be less than 3 inches in diameter which was considered waste from previous ...

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Reduction of seepage outflow from potash tailings piles by ...

The pile body mainly consists of sodium chloride (67-77 %). The potash tailings piles Bleicherode, Sollstedt and Sondershausen are located in the Wipper catchment area, while Menteroda is part of in the Helbe and Rossleben of the Unstrut catchment area. Since the German re-unification in 1990, the piles are continuously covered with a mixture of

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Assessment of radiological impact of the inactive uranium ...

Preliminary radiological assessment of radon exhalation from phosphate gypsum piles and inactive uranium mill tailings piles Technical Report Horton, T. The EPA Office of Radiation Programs has conducted a series of studies to determine the radiological impact of the phosphate mining …

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