A new use for those old AOL discs we have accumulated – cleaning sewage water

From The Optical Society and the “so crazy it just might work” department comes this curiosity: Spinning CDs to Clean Sewage Water Scientists find a potential new use for old music CDs: coating disks in photocatalytic compounds and spinning them to clean water WASHINGTON, Sept. 23, 2013 – Audio CDs, all the rage in the…

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