High concentrations of iron and manganese are problems that sometimes occur in municipal water supplies. There are specific treatment solutions that can be used for iron and manganese control and removal for groundwater.
What Are Iron and Manganese?
Iron and manganese are metals that are often found in water. These elements are naturally occurring and in small amounts are essential to a healthy diet. According to Penn State Extension, naturally occurring manganese and iron is often found in water that comes from deeper wells or has been in contact with rocks for an extensive amount of time.
Why Should Iron and Manganese Be Removed?
While both iron and manganese are unlikely to cause health problems, there are several reasons to remove them from a water supply. Excessive iron and manganese in a water system can promote the growth of different types of bacteria. A disproportionate amount of iron and manganese can also lend an unpleasant taste and color to drinking water. Water with an abundance of these two elements can also discolor plumbing fixtures and even stain clothing.
How Is Iron and Manganese Removed from Groundwater?
There are several methods that can be used for iron and manganese control and removal for groundwater. The United States Department of Agriculture suggests having the water tested before deciding the best method of removal, because the success of different treatments depends on factors such as the hardness of the water, pH, and the presence of other elements and organic materials. Actual treatment could include filtration, ion exchange and oxidation. Some of the chemicals used in the oxidation process include the following:
- Chlorine — Applied as a gas or a liquid, chlorine is a common method of removing iron and manganese.
- Chlorine Dioxide — Chlorine dioxide is sometimes used when chlorine treatments are unsuitable. However, it is more costly than chlorine.
- Potassium Permanganate — Potassium permanganate can be more expensive than other chemicals but usually requires less equipment.
AOS can put together an industrial or municipal water treatment plan that can remove excessive amounts of manganese and iron in groundwater. We have the experience to provide an effective solution that will improve water quality as well as meet all regulatory standards. Contact a consultant at AOS Treatment Solutions for iron and manganese control and removal for groundwater.