S6E27 - A Hidden Treasure in our Pee? - a podcast by Antoine Walter

There's so much better to do with your pee!

Feeding 7.8 billion humans requires a lot of fertilizers, and all types combined, nitrogen fertilizers are the ones that experience the fastest growth.

In 2021, their usage reached 110 million tons worldwide!

This is actually an environmental problem. Because producing these fertilizers involves a lot of blackish hydrogen, which has a huge carbon impact.

The good news is that humans used to know how to grow their crops without using synthetic fertilizers.

And we could return to these practices while giving them a modern twist to target a win-win.

Indeed, there's a lot of nitrogen in our wastewater treatment plants, and 90% of it comes from urine. 

Separating urine from sewage would allow tapping into it while drastically simplifying wastewater treatment - a welcome side-effect.

And as urine also contains phosphorus, potassium, Chloride, Sodium, Magnesium, Copper, and other organic and inorganic compounds, it would be a perfect fit for plant growth. 

As I said, there's so much better to do with your pee!

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