influence and interaction of temperature h2s and ph on concrete sewer pipe corrosion

• DOI: 10.5281/zenodo.2813367
• Publication Date: 2014-01-01
• Authors: Mojtaba Mahmoodian; Morteza A. Alani; Anna Romanova
• Keywords: construction; sewer pipe.; 0211 other engineering and technologies; Concrete corrosion; temperature; 02 engineering and technology; 01 natural sciences; 6. Clean water; 12. Responsible consumption; TA; 13. Climate action; hydrogen sulphide gas; civil_eng; TD; built; 0105 earth and related environmental sciences

Concrete sewer pipes are known to suffer from a process of hydrogen sulfide gas induced sulfuric acid corrosion. This leads to premature pipe degradation, performance failure and collapses which in turn may lead to property and health damage. The above work reports on a field study undertaken in working sewer manholes where the parameters of effluent temperature and pH as well as ambient temperature and concentration of hydrogen sulfide were continuously measured over a period of two months. Early results suggest that effluent pH has no direct effect on hydrogen sulfide build up; on average the effluent temperature is 3.5°C greater than the ambient temperature inside the manhole and also it was observed that hydrogen sulfate concentration increases with increasing temperature.<br/>{"references": ["Alani, A. Faramarzi, M. Mahmoodian, and K.F.Tee, \"Prediction o\nsulphide build-up in filled sewer pipes,\"in Environmental Technology,\n2014.", "E. RecioOviedo, D. Johnson and H. 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