| 摘要 |
PROBLEM TO BE SOLVED: To provide a seawater-purifying apparatus which can remarkably reduce the number of water exchanges due to the accumulation of nitrate nitrogen components in a seawater purification system needed on the existence or raising of seawater fishes, and can also reduce the total volume of the seawater purification system to lower the running cost, and to provide a seawater-purifying method. SOLUTION: Disposed is a seawater-purifying system having an electrolysis tank, a reaction tank filled with an adsorbent, and a tank filled with a removing material for removing by-products produced by the degradation reactions of an excessive oxidant component and hypochlorous acid with organic substances, in a water circulation route having a water tank for receiving fishes or shellfishes. Contaminants such as ammonia, organic materials and the like excreted from the fishes or shellfishes are adsorbed on the surface of the adsorbent together with the hypochlorous acid and simultaneously reacted with each other, thereby not accumulating nitrogen components during the raising of the fishes or shellfishes. COPYRIGHT: (C)2009,JPO&INPIT
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