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Least Cost Analysis for Biocorrosion Mitigation Strategies in Concrete Sewers

Author

Listed:
  • Georgios Fytianos

    (Department of Food Science and Technology, International Hellenic University, Sindos, 57400 Thessaloniki, Greece)

  • Emmanouil Tziolas

    (ELGO-Demeter, Fisheries Research Institute, 64007 Nea Peramos, Kavála, Greece)

  • Efthimios Papastergiadis

    (Department of Food Science and Technology, International Hellenic University, Sindos, 57400 Thessaloniki, Greece)

  • Petros Samaras

    (Department of Food Science and Technology, International Hellenic University, Sindos, 57400 Thessaloniki, Greece)

Abstract

The changing role of the municipal water and wastewater authorities, together with the need for a sustainable maintenance treatment in the sewer systems, have been the catalysts for the integration of technical and financial information into asset management systems. This paper presents results from a cost-comparative analysis focusing on an annuities calculation for the evaluation of microbiologically induced corrosion (MIC) or biocorrosion mitigation methodologies used in the maintenance of concrete sewers. The replacement cost of deteriorated sewer concrete pipes is high, and MIC mitigation methods can be used to increase the current service life of concrete pipes. From the MIC mitigation methods that are frequently used, the authors examined those of flushing with high-pressure water (i.e., a common method used in Greece), and spraying with magnesium hydroxide slurry (MHS). The authors chose four different cities for the assessment, which presented different sewer characteristics and socioeconomic backgrounds. In addition, all methods for concrete sewer MIC mitigation were compared to the present value of replacement of sewer concrete pipes with new PVC ones. Results showed that flushing with high-pressure water is very cost demanding and should be avoided, while spraying with MHS could be a sustainable and economic solution in the long term.

Suggested Citation

  • Georgios Fytianos & Emmanouil Tziolas & Efthimios Papastergiadis & Petros Samaras, 2020. "Least Cost Analysis for Biocorrosion Mitigation Strategies in Concrete Sewers," Sustainability, MDPI, vol. 12(11), pages 1-13, June.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:11:p:4578-:d:367088
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    References listed on IDEAS

    as
    1. Georgios Fytianos & Vasilis Baltikas & Dimitrios Loukovitis & Dimitra Banti & Athanasios Sfikas & Efthimios Papastergiadis & Petros Samaras, 2020. "Biocorrosion of Concrete Sewers in Greece: Current Practices and Challenges," Sustainability, MDPI, vol. 12(7), pages 1-15, March.
    2. Linping Wu & Chaoshi Hu & Wei Victor Liu, 2018. "The Sustainability of Concrete in Sewer Tunnel—A Narrative Review of Acid Corrosion in the City of Edmonton, Canada," Sustainability, MDPI, vol. 10(2), pages 1-24, February.
    3. Andrew Lemer, 2015. "Life Cycle Costing: For the Analysis, Management and Maintenance of Civil Engineering Infrastructure," Construction Management and Economics, Taylor & Francis Journals, vol. 33(8), pages 689-691, August.
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    Cited by:

    1. Leticia Gallego-Valero & Encarnación Moral-Parajes & Isabel María Román-Sánchez, 2021. "Wastewater Treatment Costs: A Research Overview through Bibliometric Analysis," Sustainability, MDPI, vol. 13(9), pages 1-14, April.

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