Modeling integrated fixed-film activated sludge and moving-bed biofilm reactor systems I: mathematical treatment and model development

摘要: A mathematical model for integrated fixed-film activated sludge (IFAS) and moving-bed biofilm reactor wastewater treatment processes was developed. The is based on theoretical considerations that include simultaneous diffusion Monod-type reaction kinetics inside the biofilm, competition between aerobic autotrophic nitrifiers, non-methanol-degrading facultative heterotrophs, methanol-degrading slowly biodegradable chemical oxygen demand, inert biomass substrate (when appropriate) space biofilm; suspended compartments, which compete both electron donor acceptor. assumes identical bacteria within biofilm. Analytical solutions to a 1-dimensional (assuming zero- first-order kinetics) applied describe flux across surface are with revised expanded matrix similar presented as International Water Association (London, United Kingdom) Activated Sludge Model Number 2d (ASM2d) stoichiometric kinetic matrix. steady-state describes continuous-flow stirred-tank reactor.