Amount of ferric chloride added with saline backwash
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This post was last edited by sunjl1981 on 2013-1-6 at 23:35. To prevent the saltwater from becoming turbid again, a pretreatment process is used in the purification of saltwater; sodium hydroxide and sodium carbonate are added during the initial reaction, and ferric chloride is added before the pretreatment stage. However, it’s not clear what amount of ferric chloride should be used, so the color of the solution is used as a guide, with adjustments made through trial and error. Since analyzing Fe3+ in the brine from the overflow port during preprocessing is time-consuming, it is difficult to determine the exact amount to add. Since we use metering pumps for addition, accurate measurement is an issue. This post was last edited by LMT168 on 2008-1-24 at 10:51. ] # ， ， &
Why is there no response? Please, those who are knowledgeable and able to help, lend a hand
Just check the color; keeping the alkalinity of the salt water at 0.1–0.4, do you think there will still be Fe3+?
What color should be considered normal? In our factory, the color is slightly reddish or yellowish; in such cases, the saltwater becomes cloudy, with an earthy color in the middle, and the foam on the sides has no color at all. Only saltwater that has undergone pre-treatment can meet the standards. But this seems difficult to achieve; even a slight fluctuation in the amount of ferric chloride makes it seem like there’s an excess. . . Anguish: L