Microbiologically Induced Corrosion of Concrete and Protective Coatings in Gravity Sewers

Marjorie Valix; Diyana Zamri; Hiro Mineyama; Wai Hung Cheung; Jeffrey Shi; Heri Bustamante

doi:10.1016/S1004-9541(11)60150-X

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Microbiologically Induced Corrosion of Concrete and Protective Coatings in Gravity Sewers

香港科技大学化学与生物分子工程系戈登·麦凯教授退休纪念专刊 | Updated：2026-01-06

- Microbiologically Induced Corrosion of Concrete and Protective Coatings in Gravity Sewers
- Chinese Journal of Chemical Engineering Vol. 20, Issue 3, Pages: 433-438(2012)
- Affiliations：
  
  1. School of Chemical and Biomolecular Engineering, The University of Sydney,NSW,Australia,2006
  2. Sydney Water Corporation, PO Box 399 Parramatta,NSW,Australia,2124
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(11)60150-X
  CLC：
- Published：2012
- Accepted：
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Marjorie Valix, Diyana Zamri, Hiro Mineyama, Wai Hung Cheung, Jeffrey Shi, Heri Bustamante. Microbiologically Induced Corrosion of Concrete and Protective Coatings in Gravity Sewers[J]. , 2012, 20(3): 433-438.
DOI：

Marjorie Valix, Diyana Zamri, Hiro Mineyama, Wai Hung Cheung, Jeffrey Shi, Heri Bustamante. Microbiologically Induced Corrosion of Concrete and Protective Coatings in Gravity Sewers[J]. , 2012, 20(3): 433-438. DOI： 10.1016/S1004-9541(11)60150-X.

摘要

Abstract

Microbiologically induced corrosion of concrete(MICC) and its protective coatings has a high economic impact on sewer maintenance and rehabilitation.A better understanding of the micro-organisms and the biogenic acids that are generated in the sewer is essential in controlling the corrosion of concrete pipes and protective coatings.The role of succession of micro-organisms growth in the corrosion of concrete and protective coatings was evaluated in this study.Examination of various sewer pipe materials exhibiting various extents of degradation

including concrete

cement based and epoxy based coating revealed the presence of both organic and biogenic sulphuric acids.This reflects the activity of fungi and the

thiobacilli

strains.Organism growth and metabolism were strongly related to the substrate pH.Fungi were found to grow and metabolise organic acids at pH from 2.0-8.0.Whilst the

thiobacilli

strains grew and generated sulphuric acids at pH below 3.0.The successive growth of the organisms provides an important bearing in developing improved strategies to better manage sewers.

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