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Iron filter

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[[Image:iron filter.jpg|thumb|right|250px|Building an iron filter. <br>Photo: PCWS]]

Iron is a naturally occurring element in the earth's crust and tends to leave a reddish-brown residue in water that tastes unpleasant and stains clothing, therefore removal is required. It is recommended, however, to check to see if the iron is geological or residue from water pumps with iron parts. If it is from the pump, replacement with a non-iron pump (i.e. stainless steel) could remove the iron from the water so that it is back to a drinkable standard. <ref name="Uganda study"/> There are a few different ways to remove iron, but generally filtration and biologically-enhanced methods are used and most practiced. Sometimes using multiple filters gives the best results. For instance, installing an [[upflow roughing filter]] before a [[slow sand filter]] increases iron removal to an acceptable level, even with high initial concentrations as high as 42mg/l (like in Uganda).<ref name="Uganda study"> [http://www.lboro.ac.uk/garnet/tncironm.html Iron and manganese removal.] Andersson, Hanna and Jenny Johansson. Iron removal from groundwater in Rakai District, Uganda: a minor field study. </ref>

'''IRF'''<br>

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