【多选题】
当原水碱度较高（＞2mmol/L）时，则可经___处理，并经脱碳降低碱度。
A. 强酸性H－Na交换
B. 强酸性Na交换
C. 弱酸性H－Na交换
D. 弱酸性Na交换
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答案
AC
解析
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相关试题
【多选题】
新的离子交换树脂在保管保存的时候应该___。
A. 保持树脂的水分，防止风干脱水
B. 防止受热和受冻
C. 避免与铁器、氧化剂和油等物质直接接触，防止树脂污染或氧化剂降解
D. 保存在50℃的水中
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