Water treatment

The aluminium sulphate marketed under the trade name SUFAL® is the most commonly used coagulant in the treatment of drinking and waste water. The Al3+ cation has a high charge that produces the elimination of colloidal matter by coagulation. Coagulation efficiency is determined by the physical and chemical characteristics of the water to be treated.

The sodium aluminates manufactured at IQE under the ALNA® trade name are used as coagulants and flocculating agents at waste water treatment plants, using their high reactive alumina content. This process achieves the clarification and elimination of the colour and hardness of waste water. They have a basic pH, a property that distinguishes them from other coagulants.

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