Decision-support Tools for Managing Wastewater Collection Systems

$17.50 plus tax (Refund Policy)

Buy Article:

Abstract:

Wastewater collection systems are an extensive part of the nation's infrastructure. As these systems become older, more preventive maintenance and renewal are required. For municipalities to cost-effectively plan, organize, and implement this effort, they require improved information on structural conditions, decision-making tools, operation and maintenance practices, and techniques for repair and rehabilitation. Data from exemplary European wastewater collection systems are potential sources of novel and efficient maintenance and renewal practices.

Although a considerable amount of money has been spent trying to increase the knowledge about the structural condition of wastewater infrastructure, the knowledge is still very limited. Pipe age is a factor; however, it is usually a combination of several factors that causes failures and influences maintenance decisions, making the situation very complex. To effectively manage maintenance and rehabilitation programs, managers need a quantitative picture of the condition and performance of their systems. Conceptually, this quantitative picture can be generated through the selection of performance indicators (e.g., overflows⊘year⊘mile), followed by collection of the required data (e.g., overflows⊘year, miles of sewer), and computation of the performance indicator value (e.g., 0.3 overflows⊘year⊘mile). Performance indicator trends can be used to monitor conditions and performance within a system over time (e.g., increase in overflow rate over last 5 years) or over space (e.g., sub-system X overflow rate is 75% greater than subsystem Y) and between separate systems (e.g., system A overflow rate is 50% higher than a similar system, B). Managers can use these indicators to identify, quantify, and justify areas requiring increased or decreased labor emphasis. There have been several attempts, both here and abroad, to develop and apply performance indicators; however, benefits and associated costs of using them have not been well documented.

This paper discusses European approaches for diagnosing and analyzing water and wastewater systems, and in particular the use of performance indicators and non-hydraulic models for predicting failures in these systems.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864701784836122

Publication date: January 1, 2001

More about this publication?
  • 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.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • ingentaconnect is not responsible for the content or availability of external websites

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more