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Metals 2015, 5(3), 1645-1664; doi:10.3390/met5031645

Beeswax-Colophony Blend: A Novel Green Organic Coating for Protection of Steel Drinking Water Storage Tanks

1
Chemical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad 91775-1111, Iran
2
School of Engineering, Faculty of Science and Technology, Deakin University, Geelong Waurn Ponds Campus, Waurn Ponds, Victoria 3216, Australia
3
Materials and Metallurgical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad 91775-1111, Iran
4
Department of Engineering Materials, Engineering Faculty, Shiraz University, Shiraz 71946-84471, Iran
*
Author to whom correspondence should be addressed.
Academic Editors: Vineet V. Joshi and Alan Meier
Received: 30 July 2015 / Revised: 7 September 2015 / Accepted: 9 September 2015 / Published: 15 September 2015
(This article belongs to the Special Issue Oxidation of Metals)
View Full-Text   |   Download PDF [1749 KB, uploaded 15 September 2015]   |  

Abstract

Beeswax-colophony blend is mainly used as a sealant mixture for preservation applications. The beeswax itself, however, has had a long way in history taking part in conservation processes including mummification. In this research, this blend was used as a protective coating for drinking water distribution tanks. Initially, a layer with 400 μm thickness was applied on a sand blasted mild steel plate. The long-term electrochemical behavior of the coating was investigated by open circuit potential (OCP) and electrochemical microbiological characteristics of the coating, microbial and chemical examinations were performed on drinking water samples that had been in contact with the coating. Furthermore, its behavior in an up-flow anaerobic sludge blanket reactor (UASBR) in a wastewater treatment plant was investigated using the scanning electron microscopy (SEM) technique. Regarding the consistency of experimental results, it was concluded that this proposed recyclable blend could be considered as a novel green organic coating and also a good corrosion barrier even in aggressive environments. View Full-Text
Keywords: beeswax-colophony; organic coating; microbiological examination; scanning electron microscopy beeswax-colophony; organic coating; microbiological examination; scanning electron microscopy
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Abdikheibari, S.; Parvizi, R.; Moayed, M.H.; Zebarjad, S.M.; Sajjadi, S.A. Beeswax-Colophony Blend: A Novel Green Organic Coating for Protection of Steel Drinking Water Storage Tanks. Metals 2015, 5, 1645-1664.

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