| abstract |
(57) [Abstract] [PROBLEMS] Most of aquarium water is sterilized by a purification means such as a filter, but bacteria adhering to walls and floors in the aquarium cannot be eliminated unless disinfection measures are taken. The disinfecting means requires manpower and equipment, and in particular, disinfection in an aquarium is performed regularly and frequently, and requires considerable labor. SOLUTION: This is a method for sterilizing aquarium water, comprising: The photocatalyst 4 is carried on an arbitrary material surface among the surfaces of the material 2 and the water 3 that form the surface, and the surface of the material is irradiated with light 5. |