South African scientists have figured out a way to purify water simply by using a sachet that is shaped like a tea bag. This sachet however is not intended to flavour the water, but instead to filter out bacteria, absorb toxins, and ultimately clean the water.
The bag easily slides into the neck of a water bottle and was created by scientists at the South Africa Stellenbosch University in order to aid communities that do not have water purification facilities to protect them from impure water and bacteria.
The bags are made out of the same material that tea bags are, but instead of tea materials the bags contain antimicrobial fibres that are not visible to the eye that are able to filter out microbes and contaminants. The bags also contain granules of activated carbon that destroy bacteria. Each nano-fiber is about 1% of a human hair in width.
Marelize Botes, one of the researchers on the project, stated that one sachet has the potential to clean out a litre of water and make it practically the same quality as a bottle of water.
Each bag is only good for one use, after which it should be thrown away and a new bag should be placed into the water bottle. The bags are biodegradable and only take three to four days to disintegrate and the materials packed into the bags are non-toxic.
The South African Bureau of Standards is still testing the filter, but early testing by the research team was successful.
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