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    Monitoring and disinfection of biofilm-associated sulfate reducing bacteria on different substrata in a simulated recirculating cooling tower system

    160230_160230.pdf (368.4Kb)
    Access Status
    Open access
    Authors
    Ilhan Sungur, E.
    Turetgen, I.
    Javaherdashti, Reza
    Cotuk, A.
    Date
    2010
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Ilhan Sungur, Esra and Turetgen, Irfan and Javaherdashti, Reza and Cotuk, Aysin. 2010. Monitoring and disinfection of biofilm-associated sulfate reducing bacteria on different substrata in a simulated recirculating cooling tower system. Turkish Journal of Biology. 34 (4): pp. 389-397.
    Source Title
    Turkish Journal of Biology
    DOI
    10.3906/biy-0902-8
    ISSN
    1300-0152
    School
    Department of Civil Engineering
    URI
    http://hdl.handle.net/20.500.11937/18024
    Collection
    • Curtin Research Publications
    Abstract

    Microbial biofilm and corrosion in cooling systems are the most common problems that damage expensive equipment, cause loss of production, and increase maintenance costs. Sulfate reducing bacteria were considered the major bacterial group involved in microbiologically influenced corrosion (MIC). We investigated the survival and enumeration of biofilm-associated SRB on coupons of galvanized steel, stainless steel, and copper, which are materials used in the manufacturing of cooling systems. We also investigated the effect of monochloromine on SRB as in mixed species mature biofilms formed on coupons by simulating recirculating cooling water conditions, due to the better penetration feature in biofilms than the residual chlorine. It was concluded that SRB count increased with time in bulk water and the surfaces (P < 0.01). Experimental results supported by statistical analyses show that monochloromine is poorly effective on SRB colonies formed on galvanized and stainless steel surfaces.

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