August 18, 2010

Nanofiber tea purifies dirty water

Scientists have reversed the action of the humble herbal tea bag to purify water on a small scale. Instead of infusing water with flavour, a sachet sucks up toxic contamination when fitted into the neck of a water bottle.

The researchers, at Stellenbosch University, South Africa, hope communities that have no water-cleaning facilities will use it to purify dirty water.

The sachets are made from the same material used to produce the rooibos tea bags that are popular in South Africa. But inside are ultra-thin nanoscale fibres, which filter out contaminants, plus active carbon granules, which kill bacteria.
Link to full article
via GOOD blog


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