イオン交換膜法による水道水の脱塩

イオン交換膜に関する研究 (第13報)

抄録

This investigation is concerned first with preliminary experiments on the desalting of a dilute solution of sodium chloride or sodium sulfate, and secondly with the desalting of city water. The results can be summarized as follows.
(1) The dilute solution of sodium chloride or sodium sulfate can be desalted to a large degree, so as to make the desalted water whose value of specific electric resistance shows approximately (150-200) ×10⁴Ω·cm.
(2) In case city water is fed at a low rate, desalted water whose value of specific electric resistance shows about 100×10⁴Ω·cm can be obtained.
(3) The specific electric conductivity of desalted water depends on current concentration, but no linear relationship between both values is recognized.