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Iron filter

409 bytes added, 03:53, 18 September 2012
→‎Biologically-enhanced method
====Biologically-enhanced method====
The key components of the filter are outlined in Diagram 1 (see below). Water from the handpump enters the filter and is directed onto an aeration tray. Water droplets fall from the aeration tray onto a few millimetres of standing water before infiltrating into the filter sand. A slotted drainpipe, set into a thin gravel blanket, collects the filtered water which exits via an outlet at a height of 0.45 m.
'''Surface area requirement'''<br>
Winona
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