Catchment & sewer network simulation model to benchmark control strategies within urban wastewater systems

Ramesh Saagi, Xavier Flores Alsina, Guangtao Fu, David Butler, Krist V. Gernaey, Ulf Jeppsson

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This paper aims at developing a benchmark simulation model to evaluate control strategies for the urban catchment and sewer network. Various modules describing wastewater generation in the catchment, its subsequent transport and storage in the sewer system are presented. Global/local overflow based evaluation criteria describing the cumulative and acute effects are presented. Simulation results show that the proposed set of models is capable of generating daily, weekly and seasonal variations as well as describing the effect of rain events on wastewater characteristics. Two sets of case studies explaining possible applications of the proposed model for evaluation of: 1) Control strategies; and, 2) System modifications, are provided. The proposed framework is specifically designed to allow for easy development and comparison of multiple control possibilities and integration with existing/standard wastewater treatment models (Activated Sludge Models) to finally promote integrated assessment of urban wastewater systems.
Original languageEnglish
JournalEnvironmental Modelling & Software
Pages (from-to)16-30
Publication statusPublished - 2016


  • Benchmark simulation models
  • Combined sewer overflows
  • Integrated control
  • System-wide evaluation
  • Urban drainage models
  • Activated sludge process


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