An amazing prototype device which can generate electricity from waste water produced by US researchers. Using
a method called reverse electro dialysis (RED), fresh water and salt
water are placed in alternating chambers separated by membranes, and an
electrochemical charge is created. The ammonium bicarbonate solution
would be constantly recycled, using waste heat from local industry.
The Penn State team says RED technology is problematic because of the
large number of membranes required, and because power plant life have to
be situated by the sea. The major application right now is in waste
water treatment where you could effectively treat the water, but also
gain some additional power from waste heat.
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