[15p-P07-1~60] 10 Spintronics and Magnetics (Poster)

[15p-P07-2] Water memory effects and changes in calcium carbonate precipitation phases due to magnetic field application

〇MohamedSayed AlyAhmed¹, Keito Inagawa¹, Hideyuki Okumura¹ (1.Kyoto Univ)

Keywords:

magnetic treatment,scale prevention,magnetic field effect

In this study, air-exposed ultrapure water was prepared in two glass vessels and circulated at a flow velocity of 3 m/s. One path was magnetized using a 700 mT permanent magnet to create magnetically treated water (MTW) and untreated water (NW). Deposition of calcium carbonate at constant temperatures (5~45°C) resulted in an increase in the vaterite phase of MTW above 15°C, reaching a maximum at 25°C. It was also observed that the particle size of MTW used for precipitation was smaller than that of NW, suggesting that magnetic treatment of water stabilized the vaterite phase and inhibited particle growth.