Materials Sciences and Applications

Volume 3, Issue 4 (April 2012)

ISSN Print: 2153-117X   ISSN Online: 2153-1188

Google-based Impact Factor: 1.34  Citations  

Microbiological Induced Corrosion on Brass in Recycling Cooling Water System Makeup by Reclaimed Water

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DOI: 10.4236/msa.2012.34037    5,141 Downloads   7,749 Views  Citations

ABSTRACT

The impacts of microorganism on brass corrosion were studied in static experiment in this paper. Two main factors, temperature and concentration ratio, were considered. According to the actual operation of recycling cooling water system, four temperatures (15℃, 25℃, 35℃ and 45℃) and four concentration ratios (1, 2.5, 3.5 and 4.5) were selected in the experiment. Corrosion potential, current density, average corrosion rate were measured by time. The results showed that: Microorganism often aggravated corrosion of brass during initial and final stages, but alleviated its corrosion at the middle time. With the extension of time that brass immersed in the solution, the microbes began to intensify the corrosion of the metal. When concentration ratios were 2.5 and 3.5 and temperature was 15℃, microbe promoted brass corrosion obviously and corrosion degrees.

Share and Cite:

P. Xu, Z. Xu, J. Wang, Y. Zhang and T. Liu, "Microbiological Induced Corrosion on Brass in Recycling Cooling Water System Makeup by Reclaimed Water," Materials Sciences and Applications, Vol. 3 No. 4, 2012, pp. 253-258. doi: 10.4236/msa.2012.34037.

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