Thursday, 12. February 2009
Topic: STRANGE - on February 12, 2009 at 1:16:00 PM CET
Urban Mining – Gold digging in the sewers
Resource-poor Japan just discovered a new source of mineral wealth: sewage sludge. In its first month of operation, a sewage plant in Japan’s Nagano prefecture has mined 5 million yen ($56,000) worth of gold from sludge.
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