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SmithCo Mining Technology

SmithCo Mfg., Inc of LeMars, IA is the leading North American manufacturer of side dump trailers for the mining industry. Haul road proven trailers range from...

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The Toxic Toll of Indonesia's Gold Mines

May 24, 2016 ... More than a million small scale miners in this island nation are ... in the 1950s when a factory dumped the heavy metal into Minamata Bay. .... out victims and test for mercury in the air, food, homes, and water. .... Learn about poisonous ingredients in ancient makeup and see what lipstick is made of today.

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Did President Trump Make It Legal to Dump Coal Mining Waste Into ...

Feb 6, 2017 ... A joint resolution headed for President Trump's signature would repeal a law that limited mining companies' ability to dump earthen mining...

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Countries like Chile still dump toxic mine waste in the sea. Can they ...

Mar 28, 2018 ... In some places, mining waste is dumped at sea, causing big ... at dumping sites, and that metals accumulate through the food web and into fish.

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The viability of using the Witwatersrand gold mine tailings for ...

The Witwatersrand Basin is the heart of South Africa'a gold mining industry. .... The three feed material (tailings, cement, and water) were mixed in the ... and properties of the ingredients, but also on the method of preparation and the ... The brickmaking plant can be close to the tailings dumps in order to cut down on costs.

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Judge questions 'beneficial use' of coal ash dump :: WRAL

Dec 7, 2015 ... Duke started moving ash to the Brickhaven mine near Moncure in October and is expected to start dumping ash at the Colon site near Sanford...

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Why Tens of Thousands of Toxic Mines Litter the U.S. West Science ...

Aug 13, 2015 ... Discharge from the Gold King Mine colored Colorado's Animas ... River was created from a set of seemingly benign ingredients. ... So when the pH goes down to pH 3, pH 2, the metals are very soluble and the acid sort of feeds back to .... Powell you've not only dumped the contaminates in the lake's delta,...

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Just how big ARE dump trucks used for mining? See for yourself ...

Apr 2, 2014 ... The 797 is a 50 foot tall dump truck widely used in the mining industry. Watch what happens when it faces off against a stationary...

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Management of Tailings and Waste Rock in Mining Activities

Apr 4, 2010 ... dumping more or less dry tailings or waste rock onto heaps or hill sides ..... strategies to minimise cyanide addition and pre sorting of the feed...

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Citigroup limits financing for mines that dump tailings at sea

Jun 12, 2018 ... Several mines around the world dispose of potentially toxic mine waste directly into the ocean. Environmentalists have criticized the practice,...

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