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Q&A Can sunlight be used to purify water?

I have an ultraviolet water purifier. It uses ultraviolet light to kill 99.9% of all viruses and bacteria in one litre of water in 90 seconds. I was wondering: if UV light can purify water, then ...

1 answer  ·  posted 8y ago by ShemSeger‭  ·  last activity 8y ago by System‭

Question water-purification