Water treatment apparatus

A water treatment apparatus comprising:

• a first ion removal module comprising a first cation exchange membrane, a first anion exchange membrane, and a first deionization channel between the first cation exchange membrane and the first anion exchange membrane;
• a second ion removal module comprising a second cation exchange membrane, a second anion exchange membrane, and a second deionization channel between the second cation exchange membrane and the second anion exchange membrane;
• and
• a fluid separation device configured to separate a fluid discharged from the first deionization channel, and guide the fluid that is separated,
• wherein the fluid separation device comprises:
• an outer guide configured to guide a portion of the fluid discharged from the first deionization channel to an outside of the second deionization channel;
• and
• a center guide inside of the outer guide and configured to guide another portion of the fluid discharged from the first deionization channel to the second deionization channel.