Manganese Greensand media CQ-IGS is formulated from a glauconite green sand which is capable of reducing iron, manganese and hydrogen sulfide from water through oxidation and filtration.
How Manganese Greensand Media works:
Soluble iron and manganese are oxidised and precipitated by contact with higher oxides of manganese on the green sand granules. The hydrogen sulfide is reduced by oxidation to an insoluble sulfur precipitate. Precipitates are then filtered and removed by backwashing.
Manganese Greensand Media specifications
When oxidising capacity of manganese greensand media is exhausted, the bed has to be regenerated with a weak potassium permanganate solution (KMnO4) , thus restoring the oxidising capacity of the media. 1 1/2 to 2 ounces of potassium permanganante, in solution, per cubic foot of greensand media 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 completely exhausted.
Operating the bed after oxidation capacity has been exhausted will reduce its service life and may cause staining.
| Type: |
Manganese Greensand Media |
| Quantity: |
1 cu.ft. |
| Weight: |
85 lb. per cubit foot |
| Specific Gravity: |
2.4-2.9 |
| Effective Size: |
0.30-0.35 mm |
| Uniform Coefficient: |
1.6 |
| Mesh Size: |
16-60 |
| Attrition Loss Per Year: |
2% |
| Water pH range: |
6.2-8.5 |
| Maximum water temperature: |
80°F / 26.7°C |
Media Capacity per cubic foot
| Iron alone |
600 grains (10,000 gal. of water containing 1 ppm iron/cu. ft.) |
| Iron and manganese |
400 grains (7,000 gal. of water containing ½ ppm iron and ½ ppm manganese/cu. ft.) |
| Hydrogen sulfide |
175 grains (3,000 gal. of water containing 1 ppm hydrogen sulfide/cu. ft.) | |
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