Iron Removal Filters
Iron can often be detected visibly in water or by staining on plumbing fixtures.
There is one rule to keep in mind when selecting a method for iron removal — and that is there is no rule. You will find — as with all problem water applications — the solution is 50 percent science and 50 percent experience.
There are different types of iron removal process applications. Before using any of these applications, it’s good to have an understanding of the type of iron present; the equipment and its limitations; and the product and processes involved with method.
Care must be taken when considering iron removal advice from different regions of the country as water temperature, pH, alkalinity, dissolved oxygen content and other factors will affect the actual results.
Most application failures are caused simply by not selecting the right equipment for the water conditions present. It is important to follow manufacturer’s guidelines regarding flow rates, backwash rates, pH levels, maximum iron input levels, water temperatures and any other application limitations that the manufacturer has noted in order for the equipment and media to deliver their best result as designed.
Most iron filtration systems operate on the principal of oxidizing the iron (oxidation) to convert it from a ferrous (dissolved or soluble) to a ferric or undissolved state. Once in the ferric state, iron can be filtered.
Water filters are the most widely used equipment in removing iron. Its popularity comes from its versatility due to the various media products available and the process involved with each media.