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Thread: Gold - Here, There and Everywhere

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    Gold - Here, There and Everywhere

    Gold is everywhere, even in your body!

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    0.2 miligrams of gold in the human body or 0.000007 ounces. At $1300 an ounce, worth about a penny.

    Poop on the other hand:

    Gold and other metals in human poo at levels worth mining

    ONE man’s trash is another’s treasure. And so, it seems, are his faeces.

    Human poo contains gold and other precious metals, together with rare elements such as palladium and vanadium, at a level that is commercially viable and could be worth hundreds of millions of dollars, scientists believe.

    Now the trick is how to retrieve them from poo for a potential windfall that could also help save the planet.

    “The gold we found was at the level of a minimal mineral deposit,” said Dr Kathleen Smith, of the US Geological Survey, after her team discovered metals such as platinum, silver and gold in treated waste.

    A study by scientists at Arizona State University (ASU), Tempe, estimated that a city of one million inhabitants flushes as much as $16.47 million ($US13 million) worth of precious metals down toilets and sewer drains each year.

    In Australia, with the population over 23 million that’s $379 million of gold.

    Science AAAS reported that in Suwa in Nagano Prefecture, Japan, a treatment plant near a large number of precision equipment manufacturers reportedly collected nearly 2 kilograms of gold in every metric ton of ash left from burning sludge, making it more gold-rich than the ore in many mines.

    Finding a way to extract the metals from poo could help the environment by cutting down on the need for mining and reducing unwanted release of metals into the environment.

    “If you can get rid of some of the nuisance metals that currently limit how much of these biosolids we can use on fields and forests, and at the same time recover valuable metals and other elements, that’s a win-win,” said Dr Smith.

    “There are metals everywhere — in your hair care products, detergents, even nanoparticles that are put in socks to prevent bad odours.”

    More than seven million tons of biosolids come out of US waste water facilities each year: about half is used as fertiliser on fields and in forests and the other half is incinerated or sent to landfills.

    Dr Smith and her team are on a mission to find out exactly what is in our waste.

    “We have a two-pronged approach,” said Dr Smith.

    “In one part of the study, we are looking at removing some regulated metals from the biosolids that limit their use for land application.

    “In the other part of the project, we’re interested in collecting valuable metals that could be sold, including some of the more technologically important metals, such as vanadium and copper that are in mobile phones, computers and alloys.”

    The findings were presented at the 249th National Meeting & Exposition of the American Chemical Society, the world’s largest scientific society, taking place in Denver through Thursday.
    Last edited by Zippyjuan; 03-01-2019 at 02:36 PM.

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