So i was watching Daily Planet today, and there was a segment on a waste plant in Delft, Holland that uses the residual ashes from burning waste to extract metals like copper, iron, silver and gold. The burning is done to meet 75% of amsterdam's energy needs because they cannot bury the garbage in Holland (the entire country is below sea level).
To extract iron, they pass the ashes thru a magnet. But for the other metals, they use some nano engineering magnetic fluid that bonds to the particles of the metals and separates them from the rest of the fluid.
Also, the magnetic liquids are a brilliant idea. When you pour the liquid over an energized flat magnet, the liquid just stays there like a huge bubble.
This stuff is really fascinating.
Check out the clip: http://www.discoverychannel.ca/Showpage.aspx?sid=13287 - its the second segment.
http://www.tudelft.nl/live/pagina.jsp?id=e98616d6-dce7-462c-b385-7a77a13d5be8&lang=en&binary=/doc/Gold%20from%20Garbage%20DO%2006-1-2.pdf
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment