| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the antibacterial and algicidal purifier not spoiling a beautiful sight, which is safe, by which the generation of such protist as algae and water-bloom is prevented even if leaving it water for a long period and excellent in antibacterial, algicidal and purificative efficiency. SOLUTION: Zinc is eluted by this antibacterial and algicidal purifier set in water or on the bottom of the water. Further, the purifier is made from zinc, zinc alloy, die-cast zinc or the zinc, zinc alloy or die-cast zinc with the surface oxidized to form a zinc oxide coated layer in the shape of an ornament or in the shape of a pavement.</p> |
