Iron Oxidation and Precipitation

Definition

The process by which soluble ferrous iron is oxidized to ferric iron, which precipitates rapidly as iron hydroxide.

Ferrous (Fe2+) iron is generally soluble, but it is quickly oxidized to the ferric (Fe3+) form, which precipitates rapidly as iron hydroxide. High iron levels foul equipment and encourage iron-related bacteria. Control routes include aeration and filtration, coagulation, greensand oxidation, lime softening, deionization, cation exchange, and corrosion source control.

Related concepts

Precipitation · Microbiologically Influenced Corrosion · Corrosion Concerns

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Part of The Blueprint of Water · ⚡ electrochemistry