| 摘要 |
PROBLEM TO BE SOLVED: To provide a processing method which allows for efficient plasma processing for a processed liquid without being affected by the properties thereof, and to provide an economical processing unit.SOLUTION: A plurality of electrodes are placed in the air above the liquid level, and plasma is generated between the electrode and the liquid level by applying a voltage between the electrodes. Since the electrode does not come into contact with the processed liquid, plasma processing can be carried out while preventing contamination of the electrode metal component due to dissolution, corrosion, decomposition, consumption, or the like, of the electrode. Furthermore, since all electrodes are in the air, the number of electrodes generating plasma can be increased when compared with a plasma generation method where one electrode is placed in the liquid, resulting in efficient plasma processing. |
