Eashwar, M. and Iyer, S.V.
(1986)
Microfouling on cathodically protected mild steel in sea water.
Bulletin of Electrochemistry , 2 (4).
pp. 341-343.
ISSN 0256-1654
Abstract
The influence of cathodic protection on the rate of microfooling on mild steel was investigated in natural
seawater. Cathodic protection was applied at current densities of 0.12 and 0.22 mA/cm2 using
sacrificial zinc anodes. The rate of attachment of bacteria and diatoms was observed to increase
dramatically as a function of applied current, particularly during the first few days of exposure. It was
also found that sulphate-reducing bacteria come into the scene as early as the fourth day white freely
corroding specimens encourage SRB activity only by the twelfth day of exposure. The growth rate
of calcareous depos~tsw as also investigated to make it comparable with that of microorganisms.
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