Reaction invariant-based reduction of the activated sludge model ASM1 for batch applications
- Santa Cruz, Judith Ailen
- Mussati, Sergio Fabian
- Scenna, Nicolas Jose
- Gernaey, Krist V.
- Mussati, Miguel Ceferino
DOIAbstract
In any system, there are some properties, quantities or relationships that remain unchanged despite the applied transformations (system invariants). For a batch reaction system with n linearly independent reactions and m components (n<m) there exist linear combinations of the concentrations that are unaffected by the reaction progress, i.e. so-called reaction invariants. The reaction invariant concept can be used to reduce the number of ordinary differential equations (ODEs) involved in batch bioreactor models. In this paper, a systematic methodology of model reduction based on this concept is applied to batch activated sludge processes described by the Activated Sludge Model No. 1 (ASM1) for carbon and nitrogen removal. The objective of th...
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