Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/64916
Title: Influence of fouling on the efficiency of sacrificial anodes in providing cathodic protection in Southeast Asian tropical seawater.
Authors: Blackwood, D.J. 
Lim, C.S.
Teo, S.L.
Issue Date: Oct-2010
Source: Blackwood, D.J.,Lim, C.S.,Teo, S.L. (2010-10). Influence of fouling on the efficiency of sacrificial anodes in providing cathodic protection in Southeast Asian tropical seawater.. Biofouling 26 (7) : 779-785. ScholarBank@NUS Repository.
Abstract: Aluminum and zinc based sacrificial anodes are routinely used to provide corrosion protection to metals (typically steel) exposed to seawater, for example in steel pipelines and storage tanks. However, the high fouling rates experienced in South East Asia means that both the anodes and the metals to be protected rapidly become coated with macrofoulers, which could potentially prevent the anodes from being effective. The present study, involving exposure tests of up to 18 months, indicates that both aluminum and zinc sacrificial anodes remain effective even after being completely coated with biofouling. Furthermore, it was easier to remove the biofouling on the cathodically protected samples than on their unprotected counterparts, possibly due to the higher local pH produced by cathodic protection at the metal and seawater interface.
Source Title: Biofouling
URI: http://scholarbank.nus.edu.sg/handle/10635/64916
ISSN: 10292454
Appears in Collections:Staff Publications

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