Iron Manganese Removal

Iron Manganese Removal

Manganese is a grey-white metal that resembles iron but is harder and very brittle. It is chemically reactive and slowly breaks down in cold water. Manganese is a naturally occurring element found in rocks, soil, air, groundwater, and surface water. Usually found in water containing iron, manganese makes up approximately 0.1% of the Earth’s crust. Continental Carbon Group designs simple, proven and cost effective manganese removal systems based on flow rate, water chemistry, economics and space limitations. The automatic MAG-50 filtration system, along with a polishing vessel are ideal for eliminating manganese contaminants.


Put the power of the MAG50 to work for your project.

  • High filtration rates surpass typical manganese greensand, leading to smaller, cost-effective systems with reduced footprints compared to alternatives like greensand.
  • Custom designed to fit through any mandoor
  • Various options to effectively treat your raw water to meet regulatory parameters
  • Longer life expectancy on both media and steel vessels compared to greensand and composite vessels
  • Less moving parts needing replacements compared to other designs
  • Easy access to visually inspect media or for any top-ups
  • Performs well over wide range of incoming raw water quality

What is the difference between types of filter media?

The most significant difference between filter media is its purity. Filox, MangOX, and MAG-50 are solid manganese dioxide filter media. The media is made from greater than 80 percent pure manganese, which is collected and processed specifically for water treatment due to its purity. These media are considered the gold standard in filter media compared to those with less than 50 percent purity.

Some filtration systems forgo solid manganese media instead and use coated manganese media like Greensand or Birm. These media use a light coating of manganese oxide over silica to effectively filter manganese from the raw water.

Solid and coated manganese media are both effective, but solid media will last much longer. In fact Continenetal Carbon Group have customers that have solid manganese media that is over 12 years old and has never been replaced. Greensand on the other hand, will last about 5 years before the manganese coating starts to wear off and the media requires changing. Below is a comparison table for different types of manganese media.

MAG50 Comparison Table

Generally, we prefer using solid manganese media such as MAG-50, because it lasts longer and is more powerful. It has stronger oxidizing ability than coated media like Greensand, so the service flow rate through the filter tends to be higher.

MAG50 City Of Toronto Condo Project
9 -Perm Filtration
Temporary Filtration Systems, Room with various filtration vessels and units