| 摘要 |
PROBLEM TO BE SOLVED: To provide a water cleaning material having high antibacterial effect and antifungal effect, low in cost, enabling easy work, reducing environmental load and obtaining safe antibacterial and antifungal action and cleaning water of a water tank, a cooling tower, a bath, a pool, an agricultural field (paddy field), a fishing field (breeding basin, breeding ground), rivers, lakes and marshes, a reservoir, a pet breeding water tank or the like, and a water cleaning method using the same. SOLUTION: The water cleaning material contains an inorganic antibacterial agent containing at least one of metal ions of Ag, Mn, Fe, Co, Ni, Cu and Zn and has a specific gravity of below 1.00 and a void ratio of 20% or more. The maximum length of this water cleaning material is not less than 1 cm. The water cleaning method for cleaning water by floating the water cleaning material on water is also disclosed. Antibacterial and antifungal treatment can be easily applied to water by an inexpensive method reducing the generation of an offensive smell, facilitating disposal and reducing environmental load and the recovery and reutilization of the antibacterial agent becomes possible. COPYRIGHT: (C)2003,JPO
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