Worms: The Plumbers of the Future

Could a $350 worm-powered toilet that doesn’t flush be the future of sanitation?

The Tiger Toilet resembles a standard pit latrine. But it doesn’t stink, thanks to a built-in colony of tiger worms deployed to feast on feces. When the worms have done their work, a much cleaner cocktail of water, carbon dioxide and “wormy compost” is left behind.

Some 4,000 Tiger Toilets have already been rolled out in India, in homes where open defecation was the norm. Bill Gates has awarded millions to develop the technology—and is prepared to spend much more on similar technologies that skirt mainstream sewer systems.

Business Insider

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