sodium bisulfite
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Can a dechlorination unit use sodium bisulfite?
Sodium bisulfite can be used to treat the dechlorination unit. Sodium bisulfite is a reducing agent that can react with chlorides, reducing them to inorganic chlorides or hydrogen chloride, thereby serving a dechlorination function. However, when using sodium bisulfite, it is necessary to control the reaction conditions to prevent the generation of harmful gases such as sulfur dioxide. It is also important to regulate the extent of the reaction in order to avoid excessive dechlorination, which could reduce product quality. .
Whether sodium bisulfite or sodium sulfite is used to remove active chlorine from brine, the effect is essentially the same. However, it should be noted that when using sodium bisulfite, greater attention must be paid to changes in the pH of the brine, as its use for dechlorination generates more acid, leading to a more significant drop in pH. It also increases the likelihood of acidolysis of sodium bisulfite, resulting in the release of sulfur dioxide. If the dechlorination process is changed to use sodium bisulfite, it is best to readjust the pH range of the saltwater; adjusting the pH value to a higher level might be preferable
Actually, the operation is pretty much the same. It can be used