Avista Technologies, Inc.

The Role of Coagulants in Reducing Colloidal Fouling - Technical Bulletin

Autopsies show that colloidal and particulate fouling is the most frequent cause of RO system performance loss and reduced element life. Colloidal and particulate foulants include: Clays, Colloidal silica, Metal silicates, Alum floc (aluminum hydroxide), Iron floc (ferric hydroxide).