Water Clarification and Media Filtration: Remineralisation and PH correction

PROVEN AND COST-EFFECTIVE TREATMENT METHODS FOR TYPICAL WATER POLLUTANTS: TURBIDITY, IRON, MANGANESE, ARSENIC, PESTICIDES, ETC..

Water remineralisation and PH correction with calcite filtration

Data Sheet Water hardness and PH correction by Calcite filtering
Feed Flow
5 - 200 m3/h
Filtration Media
Calcite (limestone contactor)
Filtration Rate
10 - 15 m/h (m3/h per m2)
Working Pressure
2 bar - 8 bar
Filter Diameter
0.3 - 3 m
Filter Height
1.1 - 3 m
Vessel Materials
FRP filament winding
Backwash options
Manual
Automatic (Timer)
Automatic (diff Pressure)

The optimum water composition from a PH and hardness point of view is that with a PH between 7.5 and 8.5 and hardness between 60 and 200 mg/l as CaCO3. If water is too soft (too low calcium and Magnesium composition) it can be very corrosive and it is recommended to restore some hardness.

Calcite (calcium carbonate media) provides a controlled PH correction to water reaching a non-corrosive equilibrium. It does not overcorrect under normal conditions if overexposed.

As the Calcite’s calcium carbonate neutralizes the water, it will increase the hardness by increasing the dissolved Calcium and Bicarbonate of the water.

Water remineralisation is strongly recommended for reverse osmosis permeate when it is for human use.

 

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*(1) All data for information only and subject to change based on actual water analysis and final design parameters

Media Filtration

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  • 1300-74-20-10
  • Level 5, 203-233 New South Head Rd, Edgecliff, NSW 2027