Aluminum fouling is a type of resin fouling that can occur in ion exchange resins used in water treatment processes.

 Aluminum fouling is a type of resin fouling that can occur in ion exchange resins used in water treatment processes. It can reduce the capacity of the resin and the quality of the water. 

Causes

Aluminum ions: Aluminum ions in water can reduce the capacity of the resin. 

Excessive aluminum sulfate: Using too much aluminum sulfate in the pretreatment plant can cause fouling. 

Inorganic scales: Inorganic scales like aluminum oxides can precipitate and foul the resin. 

Effects 

Reduced capacity: Fouling can reduce the capacity of the resin.

Reduced water quality: Fouling can reduce the quality of the water.

Corrosion: Fouling can cause corrosion to the apparatus.

Cleaning 

Hydrogen peroxide: Hydrogen peroxide is often used to clean fouled ion exchange resins. It's less oxidative than chlorine, but still has the ability to disinfect and oxidize.