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Wastewater


Wastewater is what gets flushed down the toilet, rinsed down the drain, and produced by places such as factories, workplaces, and homes. Kartik Chandran at Columbia University is changing the perception of wastewater by treating it more efficiently and creating energy from resources found in it.

View more videos in the Human Water Cycle series.

Original air date: February 7, 2017

Credit: National Science Foundation (NSF) and NBC Learn

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