Universitet utvecklar solcellsdriven avsaltning utan giftigt saltlake

Forskare vid University of Rochester har skapat ett solcellsdrivet system som omvandlar havsvatten till färskvatten utan att producera skadlig flytande saltlake. Tekniken använder lasertexturerade paneler för att förånga vatten och samla in salter i fast form.

Systemet använder svarta metallpaneler behandlade med femtosekundlasrar för att absorbera solljus och leda havsvatten över en aktiv yta. När vattnet avdunstar leds salterna till passiva områden med hjälp av kafferingseffekten, vilket förhindrar igensättning under drift. Tester med prover från Stilla havet, Atlanten och Indiska oceanen bekräftade kontinuerlig utvinning av färskvatten och en självrenande förmåga.

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