Resin Tower Regeneration Liquid PH
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This post was last edited by sunjl1981 on 2013-1-6 23:30 Today, our factory found that the secondary brine refining unit, the primary brine inlet, and the secondary refining brine outlet pH are all normal, and the various flows in the regeneration step are also well controlled, and the primary brine temperature is normal. In the past, the water used for alkali washing during the regeneration process was basically neutral, and the water washed after alkali washing was alkaline. However, now the water used for alkali washing is also alkaline, and the pH is still very high. What are the reasons? , , -
Is the alkali washing flow rate too high? Or the calcium and magnesium in the brine is very low
Acid regeneration flow and time, secondary water washing flow and time, alkali regeneration flow.
Thank you, do you mean to strictly control various indicators during the regeneration process?
Insufficient amount of acid added: The automatic acid feed valve is not completely closed. When the acid feed in the resin tower is completed, the automatic acid feed valve is not completely closed. When entering the subsequent steps, water enters the acid tank. The situation you mentioned will occur during the next regeneration.
The regeneration index control is not strict, or there is a bias flow.
1. The acidity is low during acid regeneration, 2. The secondary water washing is not thorough, 3. The alkali regeneration flow is large and the time is long.
Insufficient acid addition, acid regeneration flow and time, unqualified acidity, secondary water washing flow and time, alkali regeneration flow, etc.