Gold from Sewage

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A Japanese sewage plant has found a new way to make money.  They reprocess their ash byproduct and reclaim the ... gold?

On January 28, sewage plant operator Nagano Prefecture Suwa Construction Office announced that approximately 1.9 kilograms (4.2 lbs) of gold can be mined from each ton of molten fly ash generated when incinerating sludge at its facility in the town of Suwa.

Located in central Nagano prefecture, the Suwa Basin is home to numerous precision machining companies, metal plating facilities and hot springs, which may explain the high concentration of gold in the wastewater sludge.

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From the Upcoming ueue, submitted by \'\'shadowfirebird.


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You realize, that many profitable gold mines are able to extract less than an ounce of gold per ton. They may have just discovered the richest deposit of gold on the planet:P
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They mentioned it came from the precision instruments factory.. do the workers inhale gold, or does the factory flush unused components down the loo or what?
Not a bad haul per tonne, but still, I think I'll stick to skipdiving thanks.
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