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Concrete Biosand Filter

No change in size, 20:13, 27 April 2012

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[[Image:CAWST_Biosand.png|thumb|right|300px250px| Cross-section through a concrete biosand filter]]

The biosand filter (BSF) is an adaptation of the traditional slow sand filter, which has been used for community water treatment for hundreds of years. The BSF is smaller and adapted for intermittent use, making it suitable for households.

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