POLY ALUMINIUM CHLORIDE ( PAC )

Polyaluminium chlorides are synthetic polymers dissolved in water. They react to form insoluble aluminium poly-hydroxides which precipitate in big volumetric flocs. The flocs absorb suspended pollutants in the water which are precipitated with the PAC and can together be easily removed.

PAC can be used as a flocculant for all types of water treatment treatment, drinking water, industrial waste water, urban waste water and in the paper industry.

The possible slightly higher unit price of PAC is compensated by a

• Lower dosage requirement
• No requirement for any neutralising agent (soda, lime)
• Shorter flocculation time
• Smaller amount of sludge
• Reduced number of back washing steps
• Higher quality of the treated water