Jan 01, 2013 10:53AM
Her solution is to stand up a bike in the normal position, but with the back wheel removed and replaced with an enclosed, pedal-powered, grinder-and-separation system. Pushing bits of circuit board down an attached chute onto a grinding mill of coarse cement ejects crushed e-waste fragments. Magnets collect the ferrous metals, and a battery-powered electromagnetic current pushes away non-ferrous metals. The device is more sustainable, plus it deposits and emits much less pollution into nearby waterways and air than other methods.