This paper summarises progress of the IAWQ Task Group developing the Scientific and Technical Report (STR) on respirometry in control of the activated sludge process. The significance of respirometry in activated sludge systems is explained from a biochemical background. A classification is proposed which includes all respirometric measuring principles described in the literature. The different respiration rates that can be measured are reviewed and some variables that can be deduced from respiration rate are discussed. Some elementary control concepts will be provided that are necessary for the evaluation of respirometry-based control strategies. Finally, a number of respirometry-based control strategies will be classified and discussed.
Respirometry in control of the activated sludge process
Henri Spanjers, Peter Vanrolleghem, Gustaf Olsson, Peter Dold; Respirometry in control of the activated sludge process. Water Sci Technol 1 August 1996; 34 (3-4): 117–126. doi: https://doi.org/10.2166/wst.1996.0424
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