How Bill Gates aims to save $233 billion by reinventing the toilet

Gates Foundation spent $200 million funding toilet research

LIXIL is among companies drawn to potential $6 billion market

Bill Gates thinks toilets are a serious business, and he’s betting big that a reinvention of this most essential of conveniences can save a half million lives and deliver $200 billion-plus in savings.

The billionaire philanthropist, whose Bill & Melinda Gates Foundation spent $200 million over seven years funding sanitation research, showcased some 20 novel toilet and sludge-processing designs that eliminate harmful pathogens and convert bodily waste into clean water and fertilizer.

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