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Development of a Comprehensive Collection System Sulfide and Corrosion Management Plan for Trinity River Authority of Texas

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Abstract:

The Trinity River Authority of Texas (TRA) recognized the need for a comprehensive collection system sulfide and corrosion management plan to address problems with high H2S and interceptor corrosion on the Central Regional Wastewater System (CRWS). Grab sampling was performed to identify preliminary critical areas of concern (CAC) for more detailed sampling with OdaLog meters. Liquid-phase treatment was evaluated and field trials were performed for selected chemical treatment alternatives. A risk analysis was developed by assigning structural condition and consequence of failure ratings for each CAC. A five-year plan was developed which included a timeline for renewal for some CAC and chemical treatment on others. The corrosion management program (CMP) included recommendations for continued H2S monitoring, focused on CAC. The CMP also included recommendations for continued monitoring and analysis, preventative maintenance, new product testing, design standards, and program management activities.

Keywords: Collection system; corrosion; hydrogen sulfide; risk analysis; sulfide

Document Type: Research Article

DOI: https://doi.org/10.2175/193864711802765138

Publication date: 2011-01-01

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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