Mexican Town Using New MIT Solar-Powered Water Purifier

solar power village

A team of MIT students and research staff have successfully developed a photovoltaic powered reverse osmosis (PVRO) for use in communities in need, now deployed and working in a small Mexican village. The community in question lacked dependable drinking water but receives plenty of sunshine to drive a solar-powered system like this one. Neighbors pitched in to build and run the apparatus.

The result is a system that supplies water for about 1/10th the price of what can be found in the area, and with much greater reliability. The community stands to make thousands of dollars per year on the process, some of which will be invested back into the technology to keep it running and the rest going to voted-on projects. Eventually, they hope to turn it into a business and sell clean water to tourists visiting nearby Mayan ruins.

“When you live in a very rural area, you have to do everything yourself,” the team said of the locals. “Farming, if there’s something wrong with your well, you’re the one stuck fixing it, because no one’s going to drive into the jungle to help you. So they were very handy, which made it easy for us to train them.”

solar mit power

“The entire time, you’re just hoping nothing gets lost in translation. The nice thing about technology is, it kind of speaks for itself. You can show with very easy diagrams and hands-on training, right next to them, that turning a valve doesn’t have to be said in so many words — you can just show them.”

The team’s next mission is to put systems in other needy communities, from jungle towns to crowded cities. The system’s design can adapt to different water qualities (utilizing a variety of different water purification processes, including reverse osmosis, nanofiltration, or electrodialysis) and its affordability makes it perfect for widespread use as well.

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See more in Medical Marvels or under Science. December, 2015.

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