Device for purifying fluid using ion concentration polarization phenomenon and purification system

A purification device, which is configured to purify a fluid using an ion concentration polarization phenomenon, the purification device comprising:

• an injection channel provided with, at one end thereof, an inlet for injecting a substance to be purified thereinto;
• a purification channel which branch from the other end of the injection channel with a mesh part interposed therebetween such that a purified substance is discharged from the purification channel;
• a discharge channel which branches from the other end of the injection channel with the mesh part interposed between the injection channel and the discharge channel such that a remaining substance to be purified is discharged from the discharge channel;
• an ion-selective membrane in contact with at least one side of the mesh part;
• and
• a buffer part disposed on the other side of the ion-selective membrane in contact with the mesh part, wherein
• the mesh part has an ion-selective coating layer formed on a surface thereof,
• an application electrode is connected to the mesh part to apply a voltage, and
• a ground electrode is connected to the buffer part.