Fouling of equipment surfaces by siliceous materials in industrial water systems is a problem associated with high silica laden waters. The complexity of siliceous deposits formation stems from the limited solubility of amorphous silica and metal silicates. Once formed, these deposits are difficult to remove and often requires the use of chemical and/or mechanical approaches. This paper presents mechanisms of siliceous deposits formation and reviews various approaches attempted to control these deposits in industrial systems. Comparative performance data on a variety of polymeric, non-polymeric, and formulated products as siliceous deposit control agents are presented. Additionally, information on morphology of various siliceous deposits formed is discussed.

Subject
Acids, Water, Inhibitor performance, Precipitation (solids), Copolymers, Precipitates, Additives, Silicates, Scale inhibitors, Silica, Acidity, Polymers, Scale formation
Keywords:
siliceous, scale, mitigation, antiscalant type, efficacy, precipitate characterization
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2022
Association for Materials Protection and Performance (AMPP)
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