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Description: Book cover
A Utility of the Future Today - Dale City Wastewater Collection System
Abstract
A forward-thinking wastewater collection system in Virginia has adopted a set of comprehensive strategies and technologies including flow monitoring, hydraulic modeling, sewer inspection, and rehabilitation to achieve exceptional performance and customer satisfaction. Virginia American Water owns and operates the wastewater treatment and collection system in the Dale City area of Prince William County, Virginia. There are approximately 140 miles of sewer lines, 5000 manholes, and two pump stations in the service area. The collection system discharges to two wastewater treatment plants in Dale City, serving a population of approximately 70,000. This study developed a framework to obtain an understanding of current and innovative technologies and their applications to optimize the operation and maintenance of sewer collection systems based on a successful case study. Specifically, the objectives of the paper areto summarize ways to reduce infiltration and inflow (I/I) and sanitary sewer overflows (SSOs), implement various technologies, improve efficiencies, and reduce costs; to develop a comprehensive strategy about which technologies to employ and how to use them for overall performance improvement of sewer collection systems; to equip operators, regulators, engineers, and scientists with the tools to accurately assess sewer collection systems. The results of this case study show promise for the application of efficient and cost-effective technologies and best practices to optimize wastewater collection systems.
A forward-thinking wastewater collection system in Virginia has adopted a set of comprehensive strategies and technologies including flow monitoring, hydraulic modeling, sewer inspection, and rehabilitation to achieve exceptional performance and customer satisfaction. Virginia American Water owns and operates the wastewater treatment and collection system in the Dale City area of Prince William County, Virginia. There are approximately 140 miles of sewer lines, 5000 manholes, and two pump stations in the service area. The collection system discharges to two wastewater treatment plants in Dale City, serving a population of approximately 70,000. This study developed a framework to obtain an understanding of current and innovative technologies and their applications to optimize the operation and maintenance of sewer collection systems based on a successful case study. Specifically, the objectives of the paper areto summarize ways to reduce infiltration and inflow (I/I) and sanitary sewer overflows (SSOs), implement various technologies, improve efficiencies, and reduce costs; to develop a comprehensive strategy about which technologies to employ and how to use them for overall performance improvement of sewer collection systems; to equip operators, regulators, engineers, and scientists with the tools to accurately assess sewer collection systems. The results of this case study show promise for the application of efficient and cost-effective technologies and best practices to optimize wastewater collection systems.
Author(s)
Yanjin LiuRonald CookSuzanne Chiavari
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Jun 2020
ISSN1938-6478
DOI10.2175/193864718825157574
Volume / Issue
Content sourceCollection Systems Conference
Copyright2020
Word count13
Subject keywordsUtilities of the Future

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