《Using food waste to make clean drinking water》 - 免费有声读物

《Using food waste to make clean drinking water》 - 免费有声读物

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1 / 1PeopleFixingTheWorld-20220118-MakingCleanWaterWithRubbish

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  • 1. PeopleFixingTheWorld-20220118-MakingCleanWaterWithRubbish

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A Ugandan entrepreneur has devised a way of using old bones and vegetable peelings to make clean drinking water.

  • BBC

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