Water filter simple and affordable
April 26, 2007 Post a Comment
Abul Hussam’s SONO filter system
The first Grainger Challenge Prize was awarded in February 2007 to Abul Hussam, whose point-of-use filter will make water in Bangladesh (and hopefully other places) safe and arsenic-free.
The SONO filter is simple and cheap enough for impoverished people to afford, install, use, and maintain.
From Mr. Hussam’s SONO filter literature:
The filters are made of indigenous raw materials. It is estimated that more than a billion liters of clean water was filtered from 10000 such filters.
These filters can produce 20 liters of clean water per hour for drinking and cooking. For about US $35 they can last at least 5 years without a toxic waste disposal hazard. New models are developed for community scale use with flow rate exceeding 50 L per hour.
It was shown that [SONO] is the only system where arsenic removal efficiency increases with increased volume of groundwater filtered.
Now… why didn’t somebody come up with this before?
And for goodness’ sake, why isn’t Mr. Hussam’s work in the news more than Spider Man 3 or Paris Hilton?
First heard on The Story from American Public Media.
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