Manganese Sand Filter for Water Filtration

Manganese sand filter

Technical parameters of iron and manganese removal filter

1. Filtering speed: 6-8m3/h

2. Working temperature: normal temperature Working pressure

3. Backwashing compressed air volume: 18-25L/m2. S

4. Filter material layer height: 1000-1200mm

5. Backwashing strength: 12-15L/m2. S; Backwashing time: 4-6 minutes

The use of manganese oxide-coated media for water treatment can be traced back to the early 1900s. It was discovered that certain natural sediments rich in manganese dioxide could effectively oxidize and remove soluble iron and manganese from raw water supplies.
 

In the mid-20th century, technologies were developed to artificially produce manganese oxide coatings on silica sand or other granular substrates under controlled conditions. This allowed for standardized, consistent filtration media to be commercially manufactured.

By the 1950s, manganese sand filters had emerged as a common small-scale water treatment solution. Their ability to passively oxidize and remove iron and manganese made them well-suited for residential wells and small communities. The systems utilized gravity flow or simple pumping.

Advancements in coating processes increased manganese dioxide loading amounts throughout the 1960s-70s, substantially boosting contaminant adsorption capacity. Backwashing functions were also improved for better media cleaning.