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Stacked Rapid Sand Filtration | Team Members]bgColorgrey90 | title | [Members |
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Introduction
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a novel self-backwashing filter invented by the AguaClara team. Its unique stacked geometry allows it to use the same flow rate for the filtration and backwash cycles, without the expensive pumps or elevated tanks required to backwash conventional rapid sand filters. In addition, a stacked filtration system requires a much smaller footprint |
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than a conventional filter to treat a given flow rate. A vertically stacked filtration system meets many of the AguaClara Project constraints. Both normal filtration and |
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backwash operations are gravity driven and require no electricity. In additon, it is an open system. The required construction materials (PVC pipes, sand, concrete, brick, and rebar) are relatively cheap and available in Honduras. Most importantly, stacked rapid sand filtration is proven to consistently lower the effluent to below |
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For more information, please see the explanation of stacked rapid sand filtration theory and unit design and the General Filtration Page.
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Future Research
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