Manganese Greensand Filters - Iron Filters

About Manganese Greensand Iron Filters:

Manganese Greensand is capable of reducing iron, manganese and hydrogen sulfide from water through oxidation and filtration. Manganese Greensand is formulated from a glauconite greensand which is capable of reducing iron, manganese and hydrogen sulfide from water through oxidation and filtration.

Soluble iron and manganese are oxidized and precipitated by contact with higher oxides of manganese on the greensand granules. The hydrogen sulfide is reduced by oxidation to an insoluble sulfur precipitate. Precipitates are then filtered and removed by backwashing. When the oxidizing capacity power of the Manganese Greensand bed is exhausted, the bed has to be regenerated with a weak potassium permanganate (KMnO4) solution thus restoring the oxidizing capacity of the bed. 1½ to 2 ounces of potassium permanganate, in solution, per cubic foot of Manganese Greensand is considered sufficient for normal regeneration. It is required to vigorously backwash and regenerate the bed when it is placed in service and before its oxidation capacity is totally exhausted. Operating the bed after oxidation capacity is exhausted will reduce its service life and may cause staining.

Advantages of Manganese Greensand Filters:

• Iron reduction over a wide pH range

• Effective reduction of hydrogen sulfide in addition to iron and/or manganese

• No harmful effects from a chlorine feed

• Low attrition for long bed life

Conditions for Operation:

• Water pH range:  6.2 - 8.5

• Maximum Water Temperature:  80°F/ 26.7°C

Specifications:

• Vessel is rated at 150 psi max. operating pressure, 120°F max. operating temp.

• All Systems Automatic

• Fleck Control Valve

• Standard Valve Configuration Below. Metered Valve, Electronic Valve, or change to 7/12-Day timer available as options.
  • 7”-14” Diameter: 7-Day Timer. • 16”-48” Diameter: 12-Day Timer

• Potassium Permanganate Regeneration Tanks* (for 7”-14” Dia. Filters)
   

Manganese Greensand Filters:

* Manganese Greensand filters with tank diameters up to 14” diameter can be regenerated intermittently, and the regeneration feeder is included. Filters with tank diameters of 16” and larger require continuous injection of potassium permanganate which will require a tank and feeder. The size of the injection system (sold separately) will depend on the water quality.

** Please add the appropriate voltage code to the end of the model no. when ordering.
110v/60Hz = 116, 220v/60Hz = 216, 220v/50Hz = 215 Example: W-MFI744G-116

*** Flow rate based on 5 gpm per sq. ft. of media.

**** Stainless Steel Jacket available for 9-16” Diameter as an additional option.
 

Note:  MTM May be substituted for Greensand