| 摘要 |
PURPOSE:To efficiently remove scale and bacteria in a bathtub and to obtain clean bath water free from turbidity and odor by arranging an ultraviolet lamp and mineral particles in a circulation flow path. CONSTITUTION:Water in a bathtub 2 is passed through a water flow path (going path) 3a from an inflow port 4 with a pump 5 and brought into contact with mineral particles 6. Scale and hair in bath water are removed by filter effect of the mineral particles 6. On the other hand, anaerobic microorganisms such as Bacillus subtilis living in path water are allowed to stick on the surfaces of the mineral particles in a film state by adsorption effect of the mineral practices 6 and fatty acid compd. such as scale is decomposed into carbon dioxide, etc., with the microorganisms. Water in which organic substance has been decomposed and removed by such a way is introduced into a sterilizer 7 and unnecessary bacteria are sterilized and disinfected with an ultraviolet lamp 8 and bath water is returned to the bathtub 2 from an outflow port 9 via a water flow path (returning path) 3b as clean water free from turbidity due to the organic substance and contamination due to bacteria. |
