Potomac Interceptor Long-term Corrosion Prevention Program: DC Water Using Innovative Tools to Support Strategy Development

Yilma, Eyasu

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Description: Potomac Interceptor Long-term Corrosion Prevention Program: DC Water Using...

Potomac Interceptor Long-term Corrosion Prevention Program: DC Water Using Innovative Tools to Support Strategy Development

Abstract

DC Water’s Potomac Interceptor system has suffered from corrosion for many years. According to recent CCTV inspection, approximately 95% of the Potomac Interceptor has shown signs of corrosion. Inputting field data to sewer process models that integrate ventilation resulted in recommendations focusing on the operation of existing forced ventilation odor control systems to support reduction in corrosion. These recommendations have been adopted in the PI operation protocol. In addition, DC Water developed a long-term corrosion prevention program implementing various corrosion mitigation measures identified in the case study.

This manuscript presents a case study of DC Water's Potomac Interceptor (PI) Corrosion Control Strategy using sewer process models with newly integrated ventilation modelling. These models were used to determine the best operational strategy to prevent odor emissions, reduce corrosion, and improve management of the existing forced ventilation facilities. In addition, DC Water developed a corrosion prevention program to implement various corrosion mitigation measures identified in the case study

SpeakerYilma, Eyasu

Presentation time

13:30:00

13:50:00

Session time

13:30:00

15:00:00

SessionManaging the Third Effluent Part II

Session locationRoom S501d - Level 5

TopicCollection Systems, Facility Operations and Maintenance, Intermediate Level, Municipal Wastewater Treatment Design

Author(s)

Yilma, Eyasu