Kinetics of LCFA Inhibition on Acetoclastic Methanogenesis, Propionate Degradation and β-Oxidation

摘要: Abstract Kinetics of long-chain fatty acids (LCFAs) inhibition on acetoclastic methanogenesis, propionate degradation and β-oxidation were studied with granular sludge under mesophilic batch conditions. Mathematical expressions used for reaction rates as shown below: The simulated results revealed that the methane production from acetate decreased an increase in both concentration number double bonds LCFAs. concentrations oleate (C18:1), linoleate (C18:2), palmitate (C16:0), stearate (C18:0) 0.54 mM, 0.11 mM 1.62 mM, 2.58 mM, respectively, at which dropped 10%, 3.10 mM, 0.72 mM, 5.71 mM, 5.37 mM, 50%. inhibitory effects LCFAs showed a similar tendency methanogenesis; however, less severe. oleate, linoleate, palmitate, 1.02 mM, 0.18 mM, 2.34 mM, 1.92 mM, a...