Process water

Features in more detail:

Hardness control:

• Thanks to the pH increasing properties and the calcium source, an appropriate decarbonization or remineralization of the water is achieved.

pH control:

• The AquaCalco® product range (Q, S, M) with a pH value of 12.6 has a high neutralization value, which allows a suitable and correct pH increase.
• The AquaCalco® LS acts as a natural buffer as it slowly reacts with acidic water and neutralizes it up to a pH of around 7, while mineralizing the water with calcium and/or magnesium.

Precipitation of inorganic pollutants:

• Thanks to the increase of the pH value heavy metals can be efficiently removed from the wastewater.
• Due to the calcium content of the AquaCalco® range, pollutants such as sulphates, phosphates and fluorides are precipitated as low-soluble calcium salts.

COD reduction by coagulation:

• The AquaCalco® products promote the coagulation/flocculation of insoluble organic matter in water. By removing these organic components in the form of sludge, a significant reduction in COD (chemical oxygen demand) can be observed.

Availability:

• Most of the AquaCalco® products are produced locally.

Benefits in more detail:

Upcycling of softening by-products:

• The decarbonization process with AquaCalco® products forms a limestone sludge that can be valorized e.g. in agricultural processes.

Safe and easy to handle:

• The AquaCalco® S and M are considered as non-ADR product and non-corrosive to the skin.

Unique pH neutralization:

• One on one replacement of Caustic Soda.

TCO reduction:

• AquaCalco® is more cost efficient than other pH increasing neutralizing agents.
• AquaCalco® improves coagulation while reducing the need for other chemical reagents in physicochemical water treatment.
• Reduced wear and cleaning needs due to hardness control.
• No limitation of availability and is produced locally.