News tagged with heavy metal

Rethinking the value of sewage sludge 

Researchers from the Plant Nutrition Group at ETH Zurich have been evaluating methods to develop an efficient and environmental friendly phosphate fertilizer from sewage sludge ashes. A new thermo-chemical process that extracts ...

dateAug 16, 2013 in Environment
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Scientists eye risks of quantum dots

Quantum dots have the potential to bring many good things into the world: efficient solar power, targeted gene and drug delivery, solid-state lighting and advances in biomedical imaging among them.

dateFeb 02, 2009 in Bio & Medicine
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Banana peels get a second life as water purifier

To the surprisingly inventive uses for banana peels — which include polishing silverware, leather shoes, and the leaves of house plants — scientists have added purification of drinking water contaminated with potentially ...

dateMar 09, 2011 in Other
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