Exploring the sources of impurities in ion membranes
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To my colleagues in the chlor-alkali industry, currently most domestic enterprises use membrane technology to remove nitrate from brine, replacing the traditional Ba method. However, when analyzing impurities within the membranes, large amounts of Ba elements are still detected. I would like everyone to discuss possible sources of these impurities.
It may be that Ba ions are present in the solution; during membrane filtration, they remain on the membrane
Brought in by the raw salt or by the water used for salt dissolution