Katia Moskvitch at Biosigma, Chile
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Biomining: When microbes 'mine' copper

Chile is the world's biggest copper producer, and it is now turning to bacteria to reduce production costs and boost its copper recovery rates.

The BBC's Katia Moskvitch visited Biosigma, a company on the outskirts of Santiago, that uses bacteria to extract copper from ores.

Industrial scientist Roberto Bobadilla explains how bioleaching of copper is actually done.

  • 21 Mar 2012