What are the functions of adding salt and acid to the circulating brackish water in the electrolyzer?
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What other important functions does adding salt acid to the brackish water circulating in the electrolyzer have, aside from improving chlorine purity, reducing oxygen content, and controlling the ionic membrane conductivity?
Reducing the solubility of chlorine in brackish water, thereby releasing some of the chlorine from it, can lower the load on the dechlorination process and improve its efficiency.
Salt is added to the feed brine, as well as acid. This is because, over time, the performance of the ion exchange membrane deteriorates; by creating an ionic effect, more chloride ions are combined to form chlorine molecules, thereby reducing their reaction with water molecules to form chlorates that could corrode equipment and pipes.
The main goal is to reduce side reactions and improve the purity of chlorine gas.
Neutralizes the hydroxide ions coming from the cathode, reduces side reactions, and slows down the accumulation of chlorates
Decompose chlorates to produce chlorine and sodium chloride, thereby reducing the chlorate content in the system