S6E13 - Your Poop has Superpowers! - a podcast by Antoine Walter

Your poop can trigger desalination.

Reverse Osmosis is an energy-intensive process. Now, to be fair to the workhorse of seawater desalination, it's gone a long way since its first commercial applications in the seventies.

The first plants maybe needed twenty kilowatt-hours to desalinate one cubic meter of water, but half a century later, this number was divided by ten.

Yet, this decrease will soon meet the limits of thermodynamics, which are set at one kilowatt-hour per cubic meter.

Meanwhile, at the other end of the water cycle, a different plant has the opposite problem. 

Without any appropriate tool to tap into it, the chemical energy of wastewater is considered to be pollution and requires even more energy to clean.

But what if I told you that there's a technology that can solve both challenges in one pass?

Indeed, Microbial Desalination Cells turn the organic pollution of wastewater into an electric current that attracts the salts out of the water.

Today, the technology is already able to desalinate brackish water. Give it a bit more time to mature, and you'll see that your poop can trigger desalination!

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