Manganese Dioxide

Manganese Dioxide KT is water filter media used for reducing iron, manganese and hydrogen sulfide from drinking water.  Manganese Dioxide KT oxidises and precipitates soluble iron and manganese and the precipitates are filtered out in the granular bed and removed by backwashing.

PHYSICAL PROPERTIES

• Color: Dark brown
• Bulk Density: 45-50 lbs./cu. ft.
• Specific Gravity: 2.0 gm/cc
• Effective Size: 0.43 mm
• Uniformity Coefficient: 2.0

CONDITIONS FOR OPERATION

  • Water pH range: 6.2-8.5
  • Maximum water temp: 100°F/38°C
  • Bed depth: 24-36 in.
  • Freeboard: 50% of bed depth (min.)
  • Service flow rate: 2-5 gpm/sq. ft.
  • Backwash flow rate: At 60°F 8-10 gpm/sq. ft.
  • Backwash expansion rate: 20-40% of bed depth (min.)

MAXIMUM LIMIT

  • Iron 15 ppm
  • Manganese 5 ppm
  • Hydrogen Sulphide 2 ppm

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