Abstract: The assurance of good-quality raw water and environmental protection are important to be solved. This study was conducted, directing major attention to the fact that some of the ceramics produced from silicate minerals as raw material have electrical functions such as electrical insulation, dielectric and piezoelectric properties. Stable granular ceramics having electrical charges at the surface were developed, using the natural raw materials of silicate minerals that have excellent moldabilities and sintering properties. Production of water having functions was attempted by effective use of the electrochemical energy of the ceramics with an efficient water treatment apparatus in which the granular ceramics were fluidized in water. In the experimental results, for the ceramics-treated water, it was clear that the surface activity increased and the volatilization speed of the chlorine was slow and also the ingredient of the irritation was controlled.