Control of Sewer Flow using a Buffer Tank

Kirsten Mølgaard Nielsen, Tom Søndergaard Pedersen, Carsten Kallesøe, Palle Andersen, Llorenc Salleras Mestre, Pravin Karthick Murugesan

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Abstract

Flow variations of the inlet to a wastewater treatment plant (WWTP) are problematic due to the biological purification process. A way to reduce variations from industrial areas is to insert a buffer tank. Traditionally the only on-line measurement is the inlet flow to the wastewater treatment plant and reliable measurements in the system are difficult to establish. A control scheme using only one on-line measured variable is shown to be able to give considerable reduction in the flow variations. To implement the control scheme two models are introduced. A linear model (delay model) from the buffer tank to the wastewater treatment plant and an autonomous model describing the daily variations in the household sewer flow. A Model Predictive Controller has been designed and tested in a laboratory set-up with good results.
Translated title of the contributionregulering af spildevandsflow vhs buffertank
Original languageEnglish
Title of host publication Proceedings of the 17th International Conference on Informatics in Control, Automation and Robotics
EditorsOleg Gusikhin, Kurosh Madani, Janan Zaytoon
Number of pages8
PublisherSCITEPRESS Digital Library
Publication date7 Jul 2020
Pages63-70
ISBN (Electronic) 978-989-758-442-8
DOIs
Publication statusPublished - 7 Jul 2020
EventProceedings of the 17th International Conference on Informatics in Control, Automation and Robotics -
Duration: 7 Jul 20209 Jul 2020

Conference

ConferenceProceedings of the 17th International Conference on Informatics in Control, Automation and Robotics
Period07/07/202009/07/2020

Keywords

  • Model predictive control
  • Sewer flow modelling

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