Real installations from different parts of the world have been reported to remove unchallenged amounts of iron. In fact extreme cases multi-stage Katalox-Light filtration systems have been used without the use of any chemicals to remove iron with inlet concentration of as high as 60 – 100 mg/L (ppm).

These astounding findings are being further investigated to find the correlation between removal limit and underlying ORP, pH and other possible governing characteristics. Like most iron removal medias, Katalox Light® acts as an insoluble catalyst to enhance the reaction between dissolved oxygen and the iron compounds to form ferric hydroxide which is then removed through mechanical filtration in the media bed.