Vast energy value in human waste

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Biogas potentially available from human waste worldwide would have a value of up to US$ 9.5 billion in natural gas equivalent, UN University’s Canadian-based water institute estimates. And the residue, dried and charred, could produce 2 million tonnes of charcoal-equivalent … Continued

Economic LED recycling

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Light emitting diodes are used in a great number of products like televisions and lamps or luminaires. Moreover they are penetrating the automotive lighting market to an ever greater degree. Nevertheless, there are no suitable recycling processes available today for … Continued

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