LIQUID TREATMENT DEVICE, LIQUID TREATMENT METHOD, AND PLASMA TREATMENT LIQUID

摘要

Provided are: a liquid treatment device which is capable of generating plasma efficiently, and treating a liquid within a short period of time; a liquid treatment method; and the liquid which has undergone the plasma treatment. This liquid treatment device comprises: a first electrode; a second electrode which is disposed in the liquid to be treated; an insulating body which is provided around the first electrode with a space therebetween, and has a opening section in a position in contact with the liquid to be treated; a power source which applies voltage between the first electrode, and the second electrode such that the plasma is generated in the vicinity of the opening section of the insulating body; and a supply device which supplies the liquid to the space before the power source applies the voltage.