Zairyo-to-Kankyo
Online ISSN : 1881-9664
Print ISSN : 0917-0480
Rapid Communication Note
Corrosion Control of the Copper-alloy with reinforced Biofilm by Iron hydroxide
Atsushi KawabeNaoya Yamamoto
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2013 Volume 62 Issue 10 Pages 383-388

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Abstract

In the clean seawater without chlorination, the protective film of copper alloy tube is biofilm. The biofilm is damaged by low chlorination, therefore the biofilm is necessary to reinforce by Fe2+ injection. The protective film can be evaluated by measuring polarization resistance. According to the polarization resistance value, we regulated the concentration of Fe2+. Here we report a result for about four years. With this method, good corrosion control and good cleanliness have been maintained.

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© 2013 Japan Society of Corrosion Engineering
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