Free chlorine in the effluent from the dechlorination tower
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This post was last edited by sunjl1981 on 2013-1-6 21:14. What is the approximate level of free chlorine in the brackish water inside the electrolyzer? After treatment in the dechlorination tower, what is the approximate level of free chlorine before and after adding sodium sulfite? hcbbs !! . hcbbs
The design is based on the requirement that the free chlorine level in the dechlorinated brine be less than 15 ppm. By analyzing your dechlorinated brine, you can verify the effectiveness of the operation of the dechlorination tower.
We perform vacuum dechlorination followed by the addition of sodium sulfite, and then conduct titration analysis to determine that the free chlorine level is 0
In our electrolyzers, the free chlorine content in the brine produced after acid addition is less than 500 mg/l; after passing through the dechlorination tower, it is generally below 10 mg/l!
Was sodium bisulfite used for reduction?
This post was last edited by quhong*ng80 on 2012-8-15 at 11:15. If the vacuum level is at -75 KPa and the pH value of the brine entering and exiting the dechlorination tower is well controlled, then the free chlorine content in the brine coming out of the dechlorination tower is around 15 PPM; in such cases it is not necessary to use sodium hypochlorite. We have experienced this situation before – without using sodium hypochlorite, the ORP value ranged from 100 to 150