| 摘要 |
PURPOSE:To provide a water treating equipment capable of regulating pH of raw water by producing acid and alkali by an electrodialysis method. CONSTITUTION:A water treating equipment is constituted of a pH regulation part 101 wherein electrodialysis is used and a water treating part 108. The pH regulation part 101 is constituted of electrodes 105, 106 impressed with DC voltage and an ion exchange membrane 102 interposed in the interval thereof. Raw water is passed through one side of the pH regulation part 101 to regulate the pH thereof and then transferred to the water treating part 108. Further the concentrated water 109 discharged from the water treating part 108 flows through the other side of the pH regulation part 101 and is neutralized and discharged. The water treating part 108 is constituted of a film distillation apparatus for producing high-purity water 110 by using a hydrophobic porous membrane. |
