KTM ( 85% purity MnO2 )

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

PHYSICAL PROPERTIES

• Color                               : Black
• Bulk Density                  : 125 lbs./cu. ft. 
• Specific Gravity             : 3.8 gm/cc
• Effective Size                 : 0.46 mm
• Uniformity Coefficient  : 2.4


CONDITIONS FOR OPERATION

  • Water pH range                     : 6.2-8.5
  • Maximum water temp           : 100°F/38°C
  • Bed depth                              : 12 inch.
  • Freeboard                              : 35% of bed depth (min.)
  • Service flow rate                   : 4 gpm/sq. ft.
  • Backwash flow rate              : At 60°F 25-30 gpm/sq. ft.
  • Backwash expansion rate    : 20-40% of bed depth (min.)

 

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