News tagged with waste material

Getting more electricity out of solar cells

(Phys.org) —When sunlight shines on today's solar cells, much of the incoming energy is given off as waste heat rather than electrical current. In a few materials, however, extra energy produces extra electrons—behavior ...

May 07, 2014
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Green engineering for waste management

"Green engineering" is based on the idea of designing, selling and using processes and products that are technically and economically viable while, at the same time, minimizing pollution, as well as health ...

Apr 01, 2014
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Video: Using microbes to generate bioplastics

European scientists are experimenting with bacteria and algae and turn them into bioplastic factories. Their vision: these microorganisms should produce a large portion of our plastic materials without any petroleum.

Mar 12, 2014
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