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A Systematic Approach for Effective Collection System Sulfide and Corrosion Management Planning

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This paper presents a systematic, step-by-step approach to assist utilities in developing an effective, priority-driven, sulfide and corrosion management plan for their collection systems. Along with aging infrastructure, utilities are faced with problems with high hydrogen sulfide and corrosion in their collection systems. One of the main challenges in addressing these concerns is developing a method to prioritize critical areas of concern for rehabilitation/replacement and/or corrosion treatment. The systematic approach presented herein provides a comprehensive means which includes six key steps as listed below:

• Identification of potential Critical Areas of Concern (CAC) for corrosion

• Review of current schedule for Capital Improvements Projects (CIPs)

• Risk assessment of interceptor condition and risk rating of CAC

• Evaluation of odor control and corrosion treatment methods

• Rating of interceptor repair and replacement techniques

• Development of corrosion management program (CMP)

A case study is presented detailing the development of a comprehensive sulfide and corrosion management plan at the Trinity River Authority of Texas (TRA) Central Regional Wastewater System using the systematic approach listed above.
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Document Type: Research Article

Publication date: 2012-01-01

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