Online PH control for excess alkalinity
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I would like to ask the experts here: are there any cases of using online pH control to regulate the excess alkalinity in saline solutions?
Is it used for the purification of brine in ion-exchange membrane caustic production? Sure
A standalone online pH meter cannot accurately and reliably control the excess alkalinity of saltwater. Since the excess alkalinity is determined by hydroxide, carbonate, and bicarbonate ions in water (at lower pH levels), the presence of these weak acid ions allows them to form a system with a certain buffering effect together with strong bases. In such cases, the pH value cannot accurately reflect the total amount of alkali present in the water; it only indicates the concentration of surface hydroxide ions in the water. The degree of alkalinity should be considered in conjunction with the combined pH value to assess the excess alkalinity
Why not use an online concentration analyzer directly? German technology; contact number: 15011348038, Liu