| 摘要 |
PROBLEM TO BE SOLVED: To provide a chlorine slow-releasing device that can be used also in a water environment, has a simple configuration and is easy to manufacture, can release chlorine continually, and moreover in which an aqueous solution that has absorbed the chlorine, while maintaining a certain level of chlorine concentration, can hold the pH from a weak acid to a near neutral.SOLUTION: Provided is a chlorine slow-releasing device characterized to be used under a water environment, by combining a device for housing a chlorine-based disinfectant in a container of at least a portion having gas permeability and of the whole composed of a water-impermeable material, and a device for housing a poorly water soluble inorganic calcium salt in a container composed with a material of at least a portion having a water permeability.SELECTED DRAWING: Figure 2 |
