A decision support system framework for wastewater treatment plants maintenance and rehabilitation

Altayeb Qasem, Tarek Zayed, Zhi Chen

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


Many studies showed that the US and Canada's infrastructures are deteriorating and are approaching their projected service life. Statistics Canada (2008) stated that wastewater treatment assets have passed 63% of their useful life in 2007, the highest ratio among the five public infrastructure assets. Wastewater treatment plants failures could have severe adverse impacts on the environment and the human health. A well structured decision support system (DSS) for Wastewater treatment plants (WWTP) will help to optimize and manage the performance of these aging facilities within municipal available budgets. A DSS framework for WWTP is developed based on WWTP condition rating index (CRI). Deterioration curves framework for WWTP main infrastructure elements is developed using the ANN technique. The cost of WWTP maintenance alternatives is the objective function used in the optimization phase constrained by the minimum thresholds of the CRI of different WWTP elements.
Original languageEnglish
Title of host publicationCanadian Society for Civil Engineering Annual Conference 2009
Number of pages10
Publication statusPublished - 1 Dec 2009
Externally publishedYes
EventCanadian Society for Civil Engineering Annual Conference 2009 - St. Johns, NL, Canada
Duration: 27 May 200930 May 2009


ConferenceCanadian Society for Civil Engineering Annual Conference 2009
CitySt. Johns, NL


  • Condition rating
  • Decision support system (DSS)
  • Wastewater treatment plants (WWTP)

ASJC Scopus subject areas

  • Engineering(all)

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