| 摘要 |
PURPOSE:To prevent the adhesion of sea organisms with use of low-concn. hydrogen peroxide by injecting the hydrogen peroxide into seawater added with >=0.01ppm iron ion or an iron ion supplying substance expressed in terms of iron ions. CONSTITUTION:0.05-3ppm hydrogen peroxide is added to seawater added with 0.01-10ppm iron ion or a ferrous ion supplying compd. and a ferric ion supplying compd. which are expressed in terms of iron ions to prevent the adhesion of the sea organisms. Ferrous sulfate, ferrous chloride, etc. are preferably used as the ferrous ion supplying compd., and ferric sulfate, ferric chloride, etc. as the ferric ion supplying compd. An iron rod is immersed into seawater, and electrolyzed to discharge iron ions as a means for directly adding iron ions to the seawater. Hydrogen peroxide and the iron ions are separately injected into seawater, and both are suitably brought into contact with each other in the seawater.
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