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我厂新建一套去离子水生产装置,在试产时去离子水的电 导率在1.0μS/cm以下,但其pH值波动范围却较大,在一天之 内从7.4下降到5.5,而我厂对pH值要求在7.0以上,针对去离 子水pH值不稳定,我们从以下几个方面寻找解决方法。 （1）阴阳树脂比例不恰当,是否会有波动 原来离子交换塔 内阴阳树脂比例为2:1,我们补加阴树脂使阴阳树脂的比例为 2.5:1后,出水的pH值仍有波动,证明pH值的波动与树脂比 例无关。
I plant a new set of deionized water production plant, the trial production of deionized water conductivity of 1.0μS / cm below, but its pH range is larger, within a day from 7.4 down to 5.5, and I Plant requirements for pH above 7.0, pH value for deionized water instability, we look for solutions from the following aspects. (1) the proportion of yin and yang resin is not appropriate, whether there will be fluctuations in the original anion exchange resin column yin and yang ratio of 2: 1, we add the anion resin so that the ratio of yin and yang resin is 2.5: 1, the pH value of the water is still volatile, Prove that the pH value has nothing to do with the resin ratio.