I would appreciate your advice: How can one monitor the acid and base used for the regeneration of chelating resins in ion-exchange membrane caustic soda production?
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This post was last edited by sunjl1981 on 2013-1-6 at 23:16. During the resin regeneration process, the acidity or alkalinity of the effluent is monitored in order to assess the effectiveness of the regeneration and determine whether it has reached its peak value. How is this done exactly? # + + .
Using the regeneration curve method, determine the acid-base content at each time interval and plot the curves. Then compare with the actual measured data to check whether the regeneration is complete. For communication, please contact zzb@sunresin.com
What does a normal acid-base curve look like? When exactly was the sample taken?
After acid and alkali regeneration, wash for about 30 minutes before taking samples; the acidity should be greater than 1.0 and the alkalinity greater than 0.5. Conduct analyses every 5 minutes to determine these values, and then plot a curve.
According to the data provided by the manufacturer, take samples several times during this period to determine approximately how much time is required for each sampling task; then measure the pH value at two-thirds of that estimated time, and again when the specified time arrives. It’s a simple and easy method to use
After acid-base regeneration and washing for 30 minutes, what is the optimal peak value to obtain when taking samples?