Occurrence of sulphate reducing bacteria (SRB) associated with biocorrosion on metallic surfaces in a hydroelectric power station in Ibirama (SC) - Brazil

Brazilian Archives of Biology and Technology

Paulo Roberto Dantas Marangoni²  Diogo Robl¹  Marcos Antonio Coelho Berton²  Carlos Mario Garcia¹  Angela Bozza¹  Mariana Vieira Porsani¹  Patricia Do Rocio Dalzoto¹  Vânia Aparecida Vicente¹  Ida Chapaval Pimentel¹ 

[1] ,Instituto Senai de Inovação em Eletroquímica Serviço Nacional de Aprendizagem Industrial Curitiba PR ,Brasil

关键词: Metallic surface;    hydroelectric power station;    biofilm;    biocorrosion;   

DOI  :  10.1590/S1516-89132013000500011

来源: SciELO

【 摘 要 】

The aim of this study was evaluate, two methods for the detection and identification of sulphate reducing bacteria (SRB): ML medium and PCR with specific primers for SRB groups. SRB were detected through the selective medium only on carbon steel, which showed corrosion. Employing specific PCR primer, SBR were detected from all the metallic components assayed, even those that did not present visible corrosion spots, such stainless steel and copper alloys. Despite the presence or absence of corrosion at the later stages effectively by using the selective medium,, the initial stages of the corrosion could only be detected by the amplification of total DNA with SRB specific primers. The early detection of SRB could be employed for preventing the damages on metal surfaces before the installation of corrosion processes. Strategies for reducing the time spent on SRB isolation and identification could be auxiliary tools for controlling the corrosion of materials.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License