You make plastic out of what? Ryan Smith tells all.

Someday soon we may all be drinking water out of biodegradable plastic bottles made from raw sewage. Yes, raw sewage. That is, if Micromidas has anything to do with it. Founded by 2010 Social Innovation Fellow Ryan Smith, Micromidas feeds raw sewage to bacteria that, in turn, turns it into plastic. It's an elegant solution that solves two problems simultaneously: it reduces the use of harmful petroleum-based plastics and uses sewage instead of resources like oil and coal.

Recently, PopTech asked Smith about the potential long-term impact of Micromidas.

Micromidas can play a critical role in transitioning the chemicals industry from petroleum-based feedstocks towards low-cost renewably-sourced feedstocks. There has been a great deal of discussion over the last few years about developing a biorefinery platform within the fuels and chemicals industries. I believe that Micromidas has found a pathway to achieving this ideal by efficiently taking wastewater bio-solids and converting them to commodities materials and chemicals such as plastics. We're also very proud of the fact that our bio-plastic is marine biodegradable and can help prevent further pollution of our oceans.

So those plastic islands floating in the middle of the ocean that amount to the size of Texas? Micromidas won't be contributing to that problem. Its plastics break down within one year.

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