The primary components of water treatment reducing agents include sulfites, thiosulfates, ferrous salts, ferric ferrocyanide, and sodium thiosulfate; specific compositions vary depending on the treatment objectives.
Common types of reducing agents
Sulfites: e.g., sodium bisulfite; commonly used in reverse osmosis systems to remove residual chlorine.
Thiosulfates: e.g., sodium thiosulfate; capable of reducing oxidizing substances and achieving decolorization.
Ferrous salts: e.g., ferric ferrocyanide; used for the reduction of heavy metals and the decomposition of organic matter.
Other related components
Some reducing agent formulations may incorporate auxiliary ingredients-such as organic acids (e.g., citric acid) or alkaline substances (e.g., sodium hydroxide)-to enhance corrosion inhibition or adjust pH levels.