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Iz odpadka v zlato: S pomočjo sirotke do zlata iz starega telefona

Zlato na borzah sije vedno močneje in podira nove in nove rekorde. Raziskovalcem iz ETH Zurich pa je uspelo prelomno odkritje. Ugotovili so, kako pridobiti to plemenito kovino iz elektronskih odpadkov na zeleni način. Njihova zelo trajnostna nova metoda temelji na posebnem beljakovinskem spužvastem materialu, ki ga pridobivajo – ne boste verjeli – iz sirotke.


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