pH value of once saline
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This post was last edited by sunjl1981 on 2013-1-7 00:09. What is the optimal pH value for a single-salt solution? What impact would slightly increasing the pH value have on the resin column and the electrolyzer? # + + .
PH10-11.5 The quality of the saltwater is good
Raising the pH value has no effect on electrolysis and resin columns, but it wastes alkali.
The pH of aqueous salt solution should be between 9 and 11. At lower pH levels, NaClO3 present in the solution exhibits strong oxidizing properties, which can damage the structure of the chelating resin. Additionally, when the pH is too low, the resin changes from the Na form to the H form, resulting in a loss of its exchange capacity. Generally, the adsorption capacity of resins for Ca2+ and Mg2+ increases as the pH value rises. However, when the pH is too high, metal ions in the brine tend to form hydroxide precipitates, which deposit within the resin bed and block the resin pores, thereby increasing the pressure required for the brine to pass through the resin.