Introducing biological phosphorus removal in an alternating plant by means of control: a full scale study

Christian Rosén, P Ingildsen, T Guildal, TM Nielsen, MK Nielsen, BN Jacobsen, HA Thomsen

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, a control strategy for introducing enhanced biological phosphorus removal (EBPR) in an alternating plant designed for enhanced biological nitrogen removal (EBNR) is presented. Alternating aerobic and anaerobic conditions to promote EBPR are provided by controlling the phases of the operational cycle, instead of a separate anaerobic volume. By utilising the control schemes already built in the STAR((R)) control system for nitrogen removal, the control strategy is fully integrated in the system. The control system relies on on-line measurements of nitrogen (ammonia and/or nitrate) and orthophosphate. The control strategy has been implemented in full-scale operation at the Avedore wastewater treatment plant in Denmark and the results show clear indications of success. The control strategy has operated robustly for several months with a 60% decrease in use of precipitation chemicals.
Original languageEnglish
Pages (from-to)133-141
JournalWater Science and Technology
Volume53
Issue number4-5
DOIs
Publication statusPublished - 2006

Subject classification (UKÄ)

  • Other Electrical Engineering, Electronic Engineering, Information Engineering

Free keywords

  • alternating
  • bio-P
  • control
  • EBPR
  • wastewater
  • operation
  • BioDeNitro

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