Eashwar, M. and Ananth, V. and Paulraj, S. and Subramanian, G.
(1985)
Biofouling studies relating to cathodic protection of some metals in seawater.
Bulletin of Electrochemistry , 01 (01).
pp. 19-21.
ISSN 0256-1654
Abstract
Biofouling studies relating to the cathodic protection of mildsteel, stainless steel and brass in seawater have been conducted in the shallow waters of mandapam coast, to understand the role of biological factors operating. Rationale for the investigations were the response to cathodic protection of marine fouling, the occurence and growth rate of calcareous deposits. Cathodic protection to the metals was effected using zinc. Results indicate that the severity of fouling on mildsteel and brass is increased and inhibition of fouling on stainless steel is obtained due to cathodic protection. Barnacles, the chief calcareous shell dwelling group were found to occur with selective abundance on cathodically protected mildsteel and brass panels, with a significant increase in their shell size. These organisms were found to contribute largely to the calcareous deposits on mild steel and brass and to a smaller extent on stainless steel. The selective abundance of barnacles on cathodically protected mildsteel and brass is discussed in the light of the chemical, biological and electrochemical bases for their gregariousness
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