title: Analysis and application of ADM1 for anaerobic methane production.
abstract: An anaerobic model for the serum bottle test was developed and analyzed with sensitivities of stoichiometric and kinetic parameters to the components in order to establish a basis for appropriate application of the model. Anaerobic glucose degradation in a serum bottle was selected as an example. The anaerobic model was developed based on the anaerobic digestion model no. 1 (ADM1), which had five processes with 17 kinetic and stoichiometric parameters. Sensitivity analysis showed that the yield of product on the substrate (f) has high sensitivities to model components, and that the methane concentration was the most sensitive component. Important parameters including yield of product on the substrate (f), yield of biomass on the substrate (Y), and half-saturation values (K) were estimated using genetic algorithms, which optimized the parameters with experimental results. The Monod maximum specific uptake rate (k) was, however, so strongly associated with the concentration of biomass, that values could not be estimated individually. Simulation with estimated parameters showed good agreement with experimental results in the case of methane production. However, there were some differences in acetate and propionate concentrations.
authors.affiliation: Department of Civil and Environmental Engineering, Korea Advanced Institute of Science, Daejeon, Republic of Korea. hsjeong@kaist.ac.kr
authors.forename: Hyeong-Seok
authors.initials: HS
authors.lastname: Jeong
authors.forename: Chang-Won
authors.initials: CW
authors.lastname: Suh
authors.forename: Jae-Lim
authors.initials: JL
authors.lastname: Lim
authors.forename: Sang-Hyung
authors.initials: SH
authors.lastname: Lee
authors.forename: Hang-Sik
authors.initials: HS
authors.lastname: Shin
mesh_terms: D000465:Algorithms; D001421:Bacteria, Anaerobic / Q000502:physiology*; D019149:Bioreactors / Q000382:microbiology*; D018929:Cell Culture Techniques / Q000379:methods*; D049109:Cell Proliferation; D003198:Computer Simulation; D005947:Glucose / Q000378:metabolism*; D006868:Hydrolysis; D008657:Metabolic Clearance Rate; D008697:Methane / Q000378:metabolism*; D008954:Models, Biological
chemical_list: D005947:Glucose; D008697:Methane