The IWA Anaerobic Digestion Model No 1 (ADM1).
The IWA Anaerobic Digestion Modelling Task Group was established in 1997 at the 8th World Congress on Anaerobic Digestion (Sendai, Japan) with the goal of developing a generalised anaerobic digestion model. The structured model includes multiple steps describing biochemical as well as physicochemical processes. The biochemical steps include disintegration from homogeneous particulates to carbohydrates, proteins and lipids; extracellular hydrolysis of these particulate substrates to sugars, amino acids, and long chain fatty acids (LCFA), respectively; acidogenesis from sugars and amino acids to volatile fatty acids (VFAs) and hydrogen; acetogenesis of LCFA and VFAs to acetate; and separate methanogenesis steps from acetate and hydrogen/CO2. The physico-chemical equations describe ion association and dissociation, and gas-liquid transfer. Implemented as a differential and algebraic equation (DAE) set, there are 26 dynamic state concentration variables, and 8 implicit algebraic variables per reactor vessel or element. Implemented as differential equations (DE) only, there are 32 dynamic concentration state variables.
Batstone
D J
DJ
IWA Anaerobic Digestion Modelling Task Group, Advanced Wastewater Management Centre, The University of Queensland, St. Lucia, Australia.
Keller
J
J
Angelidaki
I
I
Kalyuzhnyi
S V
SV
Pavlostathis
S G
SG
Rozzi
A
A
Sanders
W T M
WT
Siegrist
H
H
Vavilin
V A
VA
D019149:Bioreactors; D019605:Euryarchaeota / Q000502:physiology*; D006868:Hydrolysis; D007700:Kinetics; D008697:Methane / Q000032:analysis*; D008956:Models, Chemical; D009930:Organic Chemicals / Q000378:metabolism
D009930:Organic Chemicals; D008697:Methane