Calcium and magnesium content in filtered saltwater
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The last edit to this post was made by sunjl1981 on 2013-1-6 at 22:27. Please share information regarding the calcium and magnesium content in the filtered brine used in your plants (that enters the resin tower). It would be best to have data obtained through ICP analysis; please indicate whether it refers to brine that has been filtered using Kaymembrane technology, or brine that has first passed through a clarification tank before being filtered mechanically. In our plant, the calcium and magnesium level in the brine after Kaymembrane filtration is between 900–1200 ppb, whereas it was only around 500 ppb before. Now, the plate heat exchangers used for filtering this brine need to be cleaned every six months or so, as scaling occurs very severely inside them； Previously, it was cleaned only once every year or so. # + +
Below 1000 ppb; the filtered brine heat exchanger has not been cleaned after 10 months of use
For this batch, the concentration of saltwater is generally below 2000 ppb; sometimes it can reach up to 5000 ppb. If it’s only a few hundred ppb per batch, then the quality of your saltwater is quite good. By the way, what is your consumption rate of sodium carbonate?
The quality of your filtered salt water is still quite good. Here, we use titration to determine the calcium and magnesium content in the filtered brine, and it contains virtually none. Is the plate heat exchanger clogged? Don’t you use pure water in the boilers there?
0.5~1PPm; the level at the exit of the tower is around 10ppb; the consumption of sodium carbonate is 13kg per unit
ND: The concentration upon leaving the tower is around 6 PPB, and the consumption of sodium carbonate is approximately 8 KG
Reply to 3# flay0303: The consumption of sodium carbonate is around 9 kg/t
It seems that the quality of our saline solution this time is quite acceptable, right? ! Occasionally, the output from my resin tower exceeds 20 PPB, but it’s generally below 10