Iron and Manganese Removal Filter

DMI-65 is a catalytic filter media boosting oxidation capacity of low cost oxidant such as NaOCl. It is necessary to inject chlorine before the filter to activate the filter.

The DMI-65 is one of the fewer catalytic water filtration media’s in the world developed to remove iron and manganese that is certified to NSF/ANSI 61 for drinking water applications.

Iron and Manganese
Iron can be removed by many different methods to achieve a certain level. These methods are regarded as old technology in world standard, expensive in chemical and labor costs, energy and ongoing costs and Maintenance costs.

Manganese however is much more difficult to remove and expensive using traditional methods.

The DMI-65 is the most sophisticated catalytic reaction media in the world and has a very high ability in removing iron and manganese. The DMI-65 will also remove arsenic from a water supply given the correct conditions.

The DMI-65 is the lowest cost method of removing Iron – Manganese from a water supply. All other processes are expensive to operate and difficult to maintain. The DMI-65 has a life span of at least 5 years before needing to be replaced if the plant is maintained correctly.

Catalytic Filter Media
Iron and manganese in solution are in the form of lower valence oxi-hydroxides (example, ferrous hydroxide). Higher valence oxi-hydroxides (ferric hydroxide, red color) are not soluble in water around neutral pH. When the water with iron and manganese in solution and oxidant reaches the filter bed, the low valence hydroxides oxidize to high valence; insoluble form and precipitated particles are retained in the filter bed. This process would take place normally in a matter of days to weeks. The catalytic media makes the reaction to take place in minutes accelerating the reaction a few hundred times.

The DMI-65 is a similar filtration media to other iron and manganese removal media, however the DMI-65 does not need to be regenerated.