Communities benefit from biosand filters
By GETHSEMANE MWIZABI
ACCESS to clean water and good sanitation has long been a cry of every community, urban or rural.
In an effort to enable more people access safe drinking water, simple water technology inventions have been invented to enable low-income communities, those who cannot afford chorine, access clean water in the most basic possible way.
One such invention is the bio-sand filter, which purifies dirty water so that it becomes safe to drink. The bio-sand filter is very useful both in rural and urban areas which lack safe piped water.
The filter, made out of concrete, consists of a layer of gravel with prepared sand contained within a filter body or box.
A shallow layer of water sits on top of the sand, where a bio-film is created that further filters the water of harmful microorganisms.
From the "Times of Zambia", you can read the full article here
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