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Longer shelf life
Safe to use
Alum has been part of our lives ever since the time of early Egyptians, who used it in dyeing and purification. Today, it is one of the most widely used and versatile industrial chemicals.
Most of the alum produced today is used in the pulp & paper industry as well as water and wastewater treatment. It is inexpensive and effective for a broad range of treatment problems because it can function as a coagulant, flocculant, precipitant and emulsion breaker. As a coagulant and flocculant, alum removes turbidity, suspended solids and colloidal color, reduces biochemical oxygen demand (BOD) and clarifies potable, process and wastewater.
The main uses of alum are:
Water treatment: Used as a coagulant to remove suspended solids and or some metals (eg Cr, Ba, Cu) from water (either drinking water or in waste treatment facilities)
Paper sizing: used as a rosin sizing control in paper production, affects the drainage of liquor from the paper