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Concrete sewer corrosion due to wastewater inoculation

Conference Paper


Abstract


  • The development of corrosion in sewers is largely aggravated due to frequent occurrences of wastewater inoculation. This study comprehensively evaluated the impacts of different types of wastewater inoculation on the corrosion development through a 300-day experiment using concrete at different corrosion stages. It was found that wastewater inoculation increased the corrosion losses, especially for the initial stages of corrosion development. However, the effects could not be captured by measuring surface pH and sulfide uptake rate. The wastewater can bring complicated effects of acid neutralization, wash-off of corrosion layer and biofilms scouring in addition to the commonly accepted microbial inoculation.

Publication Date


  • 2015

Citation


  • Jiang, G., Chiu, T. H., Zhou, M., Sun, X., Bond, P., Yuan, Z., & Keller, J. (2015). Concrete sewer corrosion due to wastewater inoculation. In European Corrosion Congress, EUROCORR 2015 Vol. 1 (pp. 403-409).

Scopus Eid


  • 2-s2.0-85025680843

Web Of Science Accession Number


Start Page


  • 403

End Page


  • 409

Volume


  • 1

Abstract


  • The development of corrosion in sewers is largely aggravated due to frequent occurrences of wastewater inoculation. This study comprehensively evaluated the impacts of different types of wastewater inoculation on the corrosion development through a 300-day experiment using concrete at different corrosion stages. It was found that wastewater inoculation increased the corrosion losses, especially for the initial stages of corrosion development. However, the effects could not be captured by measuring surface pH and sulfide uptake rate. The wastewater can bring complicated effects of acid neutralization, wash-off of corrosion layer and biofilms scouring in addition to the commonly accepted microbial inoculation.

Publication Date


  • 2015

Citation


  • Jiang, G., Chiu, T. H., Zhou, M., Sun, X., Bond, P., Yuan, Z., & Keller, J. (2015). Concrete sewer corrosion due to wastewater inoculation. In European Corrosion Congress, EUROCORR 2015 Vol. 1 (pp. 403-409).

Scopus Eid


  • 2-s2.0-85025680843

Web Of Science Accession Number


Start Page


  • 403

End Page


  • 409

Volume


  • 1