COPPER AND COPPER-NICKLE ALLOYS AS ZEBRA MUSSEL ANTIFOULANTS

For decades, copper has been employed in the marine environment as an antifoulant for ships and pipes against marine mussels. Currently, the prevention of biofouling in freshwater by both zebra mussels and quagga mussels is being investigated. Copper and copper alloy sheet proved highly effective in preventing biofouling by zebra mussels over a 3-year period. Further study involved the use of copper and copper nickel mesh and screen, which reduced the amount of copper used. Copper screen was found to strongly resist biofouling by zebra mussels, while copper mesh reduced zebra mussel biofouling in comparison to controls, but did not prevent it entirely. Preliminary studies into the mechanism of copper antifouling, using galvanic couples, showed that the release of copper ions from the surface of the exposed metal into the surrounding water is responsible for the biofouling resistance of copper.

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  • English

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  • Accession Number: 00721160
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 29 1996 12:00AM