Effect of Purewater Biofilm on Corrosion of Copper

Abstract

The analysis of corrosion and microfilth of natural pond water was done in pure water condition by using copper. In pure water and bacteria free water weight <i>disappearance </i>measurements, polarization and effect of biofilm on corrosion of copper has been obtained having measured corrosion rate for 100 day effective period through the various means of resistance. By X-ray diffraction analysis, in the presence of biofilm, nature of corrosion products has been identified. Copper friendly bacterial strains were isolated and identified as <i>Flavobacterium </i>species, <i>Bacillus </i>species, <i>Micrococcus </i>species and <i>Staphilococcus </i>species. Minimum corrosion floating value and high resistant values were calculated for copper in natural water. The extensive tips obtained by analysis of X-ray diffraction on natural biofilm shows that these films were made by carbon mixture.

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