‘Tea bag’ filter delivers purified water

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Stellenbosch University’s Professor Eugene Cloete, inventor of a high-tech ‘tea bag’ filter that fits into the neck of a bottle and delivers clean water as you drink from it (Photo:HOPE Project)


Combining years of research on water purification, food microbiology and nanotechnology, scientists at South Africa’s Stellenbosch University have developed a high-tech “tea bag” filter that fits into the neck of a bottle and turns polluted water into clean water as you drink from it.
It promises to provide easy access to clean drinking water for vulnerable communities, for instance those living near polluted water streams. There are also plans to commercialise the filter bag into a product that can be used by outdoor enthusiasts on hiking or camping trips.

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