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  • Sewage Sludge Is Flush With Gold and Platinum

    Jan 20, 2015 ... A sewage treatment facility in Japan already harvests gold from incinerated ... so that by specifically processing those parts of the plant that horde the ... landfills that are such a problem now will be the gold mines of the future.

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  • Mining uses of lime - Carmeuse Lime & Stone

    In the mining industry, lime products are used to refine and condition metal ores and ... Nickel and Zinc and are used in Gold and Silver processing to ensure proper pH in ... mining waste sludge and as a reagent in mining water treatment plants.

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  • Sewage sludge could contain millions of dollars worth of gold ...

    Jan 16, 2015 ... In Suwa in Nagano Prefecture, a treatment plant near a large number ... left from burning sludge, making it more gold-rich than the ore in many mines. ... That included such precious metals as platinum, gold, and silver, as well...

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  • Gold Leaching Plant for Sale - Mineral Processing / Metallurgy

    Mar 16, 2016 ... Gold Leaching Plant for Sale ... circuits and are based on average grade ore requiring average treatment time. These include precipitation and accessory equipment. The equipment required for a cyanide plant will vary considerably ... Related Mineral Processing Articles: ... Small Mining Process Equipment.

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  • Gold and other valuable metals may be harvested from sewage

    Mar 24, 2015 ... Mining operations tend not be very good for the environment, nor does the ... and harvesting its trace amounts of metals such as gold, silver and platinum. ... and end up getting combined with fecal matter at wastewater treatment plants. After the treatment process is complete, approximately 50 percent of the...

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