What is Manganese Greensand?

Manganese Greensand is a black, granulated filter media capable of removing or reducing contaminants like iron, hydrogen sulfide, and manganese in drinking water from municipal water supplies and private well. It is an effective filter material used in the United States since the 1950s for the removal of iron, manganese, and hydrogen sulfide in drinking water. These oxidized granules serve as an effective filtration material to filter contaminants in the water. The material is catalytic by nature and insoluble.

How Does a Manganese Greensand Filter Work?

A manganese greensand filter works by oxidizing dissolved iron and manganese passing through the filter media. As a result, these contaminants precipitate (forms into solids) in the filter bed of the water filter system. Since iron and manganese are dissolved metals in water, the filter media easily absorbs these contaminants and traps them into the bed of the filter.

What are the Advantages of a Manganese Greensand Filter?

There are several advantages when you use a manganese greensand filter, including iron removal for a wide range of pH, longevity due to lower attrition, no adverse effects to human health, removes manganese, and hydrogen sulfide in water.

How Do You Regenerate a Greensand Filter?

While backwashing cleanses and maintains the condition of the filter media and the filter system itself, regenerating a greensand filter with potassium pomegranate will provide the oxidizing power it needs.

Is Potassium Pomegranate Dangerous to Human Health?

Although direct contact may cause skin irritations and burns, KMnO4 is a chemical added to the filtered water. When used properly and in the right amount as an oxidizing agent to the greensand filter, potassium pomegranate is safe to human health.

What are the Two Methods of Design/Operation?

There are two methods of design/operation for a manganese greensand filter: Ferrosand CR for iron removal and Ferrosand IR for manganese removal. If you have iron in your tap water, a Ferrosand CR for iron removal can help remove the contaminant with high success. On the other hand, manganese-contaminated water will benefit from having a Ferrosand IR for manganese removal. These work great in combination with other filter design for improved efficiency.

What are Its Conditions for Operation?

The application of a manganese greensand filter must follow the recommended conditions for operations to get the best results. Among these include a pH range of 6.2 to 8.8 and a maximum water temperature of 80° F/26.7° C in a bed depth of 30 inches.

Is a Manganese Greensand Filter Effective?

If you follow the conditions for operation, a manganese greensand filter will remove or reduce iron, manganese, and hydrogen sulfide to below the MCL. Although several factors may affect the effectiveness of the filter media like pH range and water temperature, these are minor issues easily corrected in most cases.

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