Patent ID: 9688549
Date: 2017-06-27
CPC Classifications: C02F,D06F

Claim:
1. A liquid treatment device comprising: a first metal electrode having a part disposed in a reaction tank into which a water being treated is filled; a second metal electrode disposed in the reaction tank; an insulator disposed around an outer circumference of the first metal electrode with a space between the outer circumference of the first metal electrode and the insulator, wherein the insulator has an opening portion; a gas supply device that supplies the space with a gas for generating the bubble; and a power supply that applies a voltage between the first metal electrode and the second metal electrode, wherein: when no voltage is applied between the first metal electrode and the second metal electrode, the gas supply device supplies the gas in the space with a gas flow rate such that the bubble is made so as to cover the metal electrode portion of the first metal electrode, and the bubble becomes a single bubble uninterrupted over a constant distance from the opening portion of the insulator, the first metal electrode connects at least two portions, the at least two portions includes a one end side portion disposed in the reaction tank and the other end side portion connected to the power supply, and the first metal electrode comprises the one end side portion and the other end side portion which are made of a different material each other.