Aquamat Manganese Dioxide Iron Removal Filter


Increased levels of Iron and Manganese concentrations are the main cause of drinking water discolouration. Furthermore, discoloured water also leads to coloured stains on laundries and sinks, increased treatment costs, reduced treatment capacity and compromised equipment.





DMI-65® is a revolutionary filtration media with a proven track record in the removal of Iron, Manganese, Arsenic as well as Aluminium and other heavy metals under certain conditions. The media operates with a continuous injection of sodium hypochlorite at low residual levels (0.1 to 0.3 ppm) which eliminates the need for regeneration with Potassium Permanganate. The injection of Sodium Hypochlorite keeps the media free from bacterial bio-fouling or slime growth. Iron and manganese exist in bore water as bicarbonate. DMI-65 acts as an oxidation catalyst, it facilitates oxidation – precipitation – filtration

Filter Performance

Due to the infusion technology and the micro-porous structure of the matrix material the DMI-65 has an increased surface area and a higher load capacity for targeted iron and manganese. The unique microporous structure of DMI-65 efficiently removes dissolved iron to almost undetectable levels as low as 0.001 PPM and manganese to 0.001 PPM, with a small amount of chlorine and attention to pH.

Equipment Maintenance

An electrical connection is needed. It is essential to ensure incoming and outgoing water connections, as well as wastewater discharge lines.


DMI65 removal technology is based on Manganese Dioxide catalytic conversion of Iron/Manganese into higher valence insoluble oxy-hydroxides that are then filtered out with an automated backwash filter valve.

The filter unit comprises a floor-standing reinforced fiberglass cylinder fitted with a time-set automated backwash valve.

Automatic Timer Control

The backwashing process is initiated by the elapsed time since the last backwash

Feed water bypass to service during backwash –

Provides a continuous supply of water even during the backwashing process

ADVANCED OXIDATION PROCESS DMI-65 is an extremely powerful silica sand-based catalytic water filtration media

  • Certified by the Water Quality Association in accordance with NSF/ANSI 61
  • High Oxidation Capacity
  • Replacement frequency every 5-10 years
  • Effective in removing up to 15 ppm iron and manganese. At higher  iron and manganese  levels a pre-oxidation stage is recommended
Required Services
Electrical ** 220v ,50Hz
Feed water pressure 2 – 7 Bar
Feed water temperature 1 – 50∈C
Drain Sized to accommodate backwash flow rate
Conditions for Operation Range Supplementary products
Water pH 5.8 – 10.5 AQ pH Correction
Max. Water Temp 40ºC .
Chlorine Residual 0.1 – 3 mg/L AQ Sodium Hypochlorite Dosing
Min. Inlet Pressure 2 bar Booster Pump
Max. Inlet Pressure 7 bar Pressure Regulating Valve
Vacuum Not Permitted Vacuum Breaker
Model Name (ADF-10)
Flow rates [M3/hr]
Maximum Service Flow (dependent on contaminants) 0,5
Pressure drop @ MAX service flow (bar) 0,28
Backwash flow rate (m3) 0.75
Effluent volume (m3) @ 6 min Backwash Time 0,075
Connections – BSP (inches)
Inlet 1
Outlet 1
Drain 1
Dimensions (mm)
Height (Inc. Control valve) 1381
Diameter 268
Weight (kg)
Vessel 8
Working 61