Sodium chlorate is high in brackish water, while sodium chloride is not high in alkali
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This post was last edited by sunjl1981 on 2013-1-6 at 20:05. The concentration of sodium chlorate is high in slightly salty water, while the concentration of sodium chloride is not high in alkaline water. Please help analyze what the possible reasons might be. hcbbs hcbbs
Generally speaking, high levels of chlorates lead to a higher salt content in the alkali. It is recommended that the original poster check whether there are any issues with the sampling process and whether the analysis results are accurate
Membrane perforation leads to the mutual penetration of chloride ions and hydroxide ions, resulting in high levels of chlorates in slightly salty water and sodium chloride in alkalis. But we do have an increased level of chlorates in the lightly saline water; the test results are normal, and the samples have been verified by Asahi Kasei to be reliable. Asahi Kasei is forming an expert group to discuss and tackle the issue
Let me ask first. Do you have chlorate decomposition tanks? Since the chlorate content in the alkali is not high, as you said, the ion exchange membrane is not the main issue; normally, the chlorate content in brine should be much higher than that in alkali. If the level is extremely high, it might be due to problems with your electrolytic dechlorination process; when physical dechlorination is not effective, chemical dechlorination is used, which makes it easy to produce chlorates. If there is no tank for the decomposition of chlorates, then these chlorates can accumulate.
Let me ask first. Do you have chlorate decomposition tanks? Since the chlorate content in the alkali is not high, as you said, the ion exchange membrane is not the main issue; normally, the chlorate content in brine should be much higher than that in alkali. If the level is extremely high, it might be due to problems with your electrolytic dechlorination process; when physical dechlorination is not effective, chemical dechlorination is used, which makes it easy to produce chlorates. If there is no tank for the decomposition of chlorates, then these chlorates can accumulate.
Of course, there are decomposition tanks. Asahi Kasei’s experts wouldn’t be that stupid; they can’t even tell whether there is a decomposition tank or not, haha. Chlorate levels are continuously rising for unknown reasons
Hehe, our factory doesn’t have any chlorate decomposition tanks! May I ask what is your consumption per unit of sodium sulfite?
Those obvious reasons must have been ruled out. Now, the Japanese are concerned about the effects of high TOC levels, and they use recycled brine containing hydrazine hydrate ； It could also be electrode burn ； A high silicon level may also