On Fri, Mar 4, 2022 at 4:37 AM Thaths via Silklist < [email protected]> wrote:
Keeping this decade-and-a-half-plus thread going.... > > https://news.mit.edu/2022/solar-desalination-system-inexpensive-0214 > Indeed. https://www.abc.net.au/news/2023-07-19/australian-scientist-water-purification-sticker-helping-cambodia/102609532 <q> It is just a small sticker, but it could have an enormous impact on the 2 billion people worldwide without access to clean drinking water. Key points: Martin Butson has helped invent a small sticker that indicates when water has been purified through UV exposure The stickers can be placed on a reusable plastic bottle and change colour when the water is safe to drink The stickers have been used in a pilot program in Cambodia that has already helped thousands of people The SAFE sticker is a UV purification label that works by simply sticking it on a bottle of contaminated water, putting the container in the sun and waiting for the UV light to kill harmful bacteria, viruses and microorganisms. Wollongong scientist and co-inventor Martin Butson told ABC Illawarra Mornings presenter Nick Rheinberger the sticker removed the guesswork from using UV rays to treat water. </q>
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