Denitrification
Thread Content
Is the pH instability of denitration related to the flow rate?
There is a certain relationship, which requires frequent and timely adjustments.
Yes, there is a direct relationship. The flow rate is unstable, the amount of acid added is also unstable, and the pH is unstable.
It depends on the pit. To control the pH of inlet denitrification, we should pay attention to the following points:: 1. The pH of electrolytic dechlorination brine must be controlled stably ； 2. The flow of light brine entering the denitrification pretreatment unit must be controlled stably ； 3. The concentration of acid added should not be too high. It is appropriate to consider a concentration of 3~4%. Increasing the amount added is beneficial to the stability of the adjustment. ； 4. The pH detection electrode should be checked and calibrated regularly to see if there is any fluctuation in the electrode detection. ； 5. The temperature of the denitrified and dechlorinated brine must be controlled stably after cooling.