This paper analyzes the reason for the accumulation of SO 2- 4 in the brine,proposes to remove SO 2- 4 using BaCl 2 and describes its economic feasibility as well.

• 分析盐水中SO2－4累积的原因，并提出了BaCl2去除SO2－4的设想，说明了此法经济的可行性。