TY - JOUR
T1 - Limitations of ASM1 and ASM3
T2 - A comparison based on batch oxygen uptake rate profiles from different CD full-scale wastewater treatment plants
AU - Guisasola, A
AU - Sin, Gürkan
AU - Baeza, JA
AU - Carrera, J
AU - Vanrolleghem, PA
PY - 2005
Y1 - 2005
N2 - The two most popular models for the description of the biological COD removal are ASM1 and ASM3. However, some numerical inconsistencies arise when using these models to interpret the data obtained in short-term respirometric batch experiments. In this study, both models are fitted to four different respirometric batch profiles obtained with biomass from different WWTP. The parameter estimation results and the practical (local) identifiability are analysed, and the limitations of both models are discussed. The growth yield obtained by fitting ASM1 to the short-term respirometric batch profiles is higher than the default one, as well as the storage yield obtained by fitting ASM3 is lower than the default one. Based on these values, possible improvements to the modelling of the biological COD removal, such as the inclusion of simultaneous growth and storage on external substrate, are proposed.
AB - The two most popular models for the description of the biological COD removal are ASM1 and ASM3. However, some numerical inconsistencies arise when using these models to interpret the data obtained in short-term respirometric batch experiments. In this study, both models are fitted to four different respirometric batch profiles obtained with biomass from different WWTP. The parameter estimation results and the practical (local) identifiability are analysed, and the limitations of both models are discussed. The growth yield obtained by fitting ASM1 to the short-term respirometric batch profiles is higher than the default one, as well as the storage yield obtained by fitting ASM3 is lower than the default one. Based on these values, possible improvements to the modelling of the biological COD removal, such as the inclusion of simultaneous growth and storage on external substrate, are proposed.
M3 - Journal article
SN - 0273-1223
VL - 52
SP - 69
EP - 77
JO - Water Science and Technology
JF - Water Science and Technology
IS - 10-11
ER -