Mass production of plasma activated water by an atmospheric pressure plasma
Yun-Sik Jin, Chuhyun Cho, Dae-Jong Kim, Chae Hwa Sohn, Chang-Seung Ha, Seong‐Tae Han
Abstract
Abstract We report on the mass production of plasma activated water (PAW) by a non-thermal atmospheric pressure plasma. As a non-thermal plasma source, we used planar dielectric barrier discharge (DBD) and two types cylindrical DBDs. The manufacturing characteristics of PAW were investigated for each DBD type. The results show that the radical transfer characteristics from plasma to water have a dominant effect on the PAW properties. Of the two cylindrical DBD reactors, the “direct” type in which the mesh electrode was replaced with the conductor (Al) showed superior characteristics over “indirect” type. DBD reactor with an Al electrode with the length of 1 m long achieved a PAW production capacity of 520 liters per hour and production efficiency of 65 l kWh −1 . Such a large-capacity PAW manufacturing device can be applied to various industries including agriculture, sterilization, and water treatment.