Manganese Greensand – Advanced Iron & Manganese Removal Media

Product Overview

Manganese Greensand is a high-performance filtration media specifically designed to remove iron (Fe²⁺), manganese (Mn²⁺), and hydrogen sulfide (H₂S) from water through a process of oxidation and filtration. Manufactured from glauconite greensand, this media effectively oxidizes contaminants, converting them into precipitates that are easily filtered out and removed by backwashing.

Once the oxidation capacity is exhausted, the media can be regenerated with potassium permanganate (KMnO₄), restoring its performance and ensuring long-term efficiency.

How It Works

🔹 Oxidation & Filtration: Soluble iron and manganese are oxidized upon contact with manganese dioxide-coated greensand granules.
🔹 Hydrogen Sulfide Removal: H₂S is oxidized to an insoluble sulfur precipitate.
🔹 Backwashing: Filters out the precipitates and restores media efficiency.
🔹 Regeneration: Requires 1.5 – 2.0 g of KMnO₄ per liter of media for effective regeneration.

Key Benefits

✅ Effective Removal: Removes iron, manganese, and hydrogen sulfide efficiently.
✅ Long Media Life: Low attrition loss (2% per year) ensures long-term performance.
✅ Chemical-Free Operation: No harmful effects from feedwater.
✅ Regeneration Capability: Easily regenerated with potassium permanganate to restore oxidizing capacity.
✅ Reliable Performance: Works across a wide range of water conditions.

Physical & Chemical Properties

• Color: Black

• Bulk Density: 1360 kg/m³

• Specific Gravity: 2.4 – 2.9

• Effective Size: 0.30 – 0.35 mm

• Uniformity Coefficient: 1.6

• Mesh Size: 16-60

• Attrition Loss: 2% per year

Operating Conditions

• pH Range: 6.2 – 8.5

• Max. Water Temperature: 26.7°C

• Bed Depth: Minimum 30 inches

• Freeboard Size: Minimum 50% of bed depth

• Regeneration: 1.5 – 2.0 g KMnO₄ per liter

• Service Flow Rate: 3-5 gpm/sq.ft. (up to 10 gpm/sq.ft. intermittent)

• Backwash Flow Rate: 10-12 gpm/sq.ft.

• Backwash Bed Expansion: Minimum 40% of bed depth

• Max Iron (Fe²⁺) or Manganese (Mn²⁺) in Raw Water: 15 ppm

• Max Hydrogen Sulfide (H₂S) in Raw Water: 5 ppm

Capacity per m³ of Manganese Greensand

• Iron Removal: 1370 g (treats 1370 m³ of water containing 1 ppm Fe)

• Iron & Manganese Removal: 915 g (treats 935 m³ of water containing 0.5 ppm Fe & 0.5 ppm Mn)

• Hydrogen Sulfide Removal: 400 g (treats 400 m³ of water containing 1 ppm H₂S)

Ideal Applications

✔ Drinking Water Purification
✔ Industrial & Municipal Water Treatment
✔ Well Water Filtration
✔ Groundwater Remediation
✔ Iron & Manganese Removal from Borewell Water

product code : SIE20250331249