Abstract
In greenhouses, the utilization of good-quality raw water and environmental protection are important problems for the favorable growth of seeds. In this study, stable granular ceramics of 0.8mm in diameter with electrical charges at the surface were developed, using the natural raw materials of silicate minerals at sintering temperature of 1200°C. Production of water with active functions was attempted by effective use of the ceramics with an efficient water treatment device in which the granular ceramics were fluidized in water. In the experimental results, for the ceramics-treated water, it was clear that the activities of water were obtained, that is, kaolin particles formed the larger flock in a wide range of PAC (Poly-Aluminum Chloride) concentrations, and the effective flocculation was confirmed with the increase in surface activity, and also the consumption speed of the chlorine was slow. The vigor of the melon seeds and the early growth for the ceramics-treated water were enhanced. Therefore, this water treatment device can contribute to improving water quality.
