Tomato and apple peels can help purify water

Every time you hear the word “bioremediation,” an angel gets its wings.


Ramakrishna Mallampati is our kind of guy. A PhD student at the National University of Singapore, Mallampati has been coming up with a creative way to remove pollutants from water: He’s using discarded fruit peels.

He started with tomatoes, because tomatoes are one of the most commonly consumed foods in the world, and when they’re processed, there’s tons of waste left over — skins and seeds and fibers. Then he moved on to apple peels. Why? Just think of all the peels you could source from apple juice and apple sauce factories.

Here’s how this actually works.

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