Respirometric analysis of activated sludge behaviour - II. Heterotrophic growth under aerobic and anoxic conditions

S. Sözen*, E. Ubay Çokgör, D. Orhon, M. Henze

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

86 Citations (Scopus)

Abstract

Respirometric analysis of domestic sewage and textile, dairy, meat processing, tannery and confectionery wastewaters were carried out for the experimental assessment of the maximum specific growth rate of heterotrophic biomass and the correction factors for biological growth and hydrolysis under anoxic conditions. The accuracy and reliability of the experimental procedure was tested using synthetic sewage and different wastewater mixtures. The merit of adopting a lower yield coefficient associated to nitrate utilization under anoxic conditions was theoretically discussed and verified with the experimental results obtained. The kinetic basis of respirometric analysis was evaluated for interpretation of the experimental data on the basis of major mathematical methods currently defining activated sludge modelling.

Original languageEnglish
Pages (from-to)476-488
Number of pages13
JournalWater Research
Volume32
Issue number2
DOIs
Publication statusPublished - Feb 1998

Keywords

  • Anoxic correction factors
  • Biodegradation
  • Domestic sewage
  • Heterotrophic growth
  • Industrial wastewaters
  • Respirometric measurements
  • Wastewater characterization

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