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Dear WATTA

I presume you want to reduce the iron levels to below 0.3mg/l for drinking water purposes. The standard method of iron removal is by oxidation of the iron (by addition of chemicals or aeration) followed by filtration through a sand filter. Alternatively iron can be removed using a biological filter. Peter Hartmann has written an excellent SKAT Working Paper on Water Supply and Environmental Sanitation titled ‘Iron & Manganese Removal: Simple Methods for Drinking Water’. You can access it on line at this link (it’s 3.6MB of download to beware!) https://www.skat.ch/publications/prarticle.2005-09-29.5069774463/prarticle.2006-11-02.5180575226/skatpublication.2005-10-27.3771055461/filelink text The paper gives some good case studies of different systems used in Sri Lanka, Burkina Faso, Ghana, Argentina, South Africa and Uganda with pertinent technical detail and contact numbers if you want to get more information.

Harriette