title: [Kinetic model of enhanced biological phosphorus removal with mixed acetic and propionic acids as carbon sources. (I): Model constitution].
abstract: Based on activated sludge model No. 2 (ASM2), the anaerobic/aerobic kinetic model of phosphorus-accumulating organisms (PAO) was established with mixed short-chain fatty acids (SCFAs) as the base substance in enhanced biological phosphorus removal process. The characteristic of the PAO model was that the anaerobic metabolism rates of glycogen degradation, poly-beta-hydroxyalkanoates synthesis and polyphosphate hydrolysis were expressed by SCFAs uptake equation, and the effects of anaerobic maintenance on kinetics and stoichiometry were considered. The PAO kinetic model was composed of 3 soluble components, 4 particulate components and a pH parameter, which constituted the matrix of stoichiometric coefficients. On the basis of PAO model, the GAO kinetic model was established, which included 7 processes, and phosphorus content influenced the aerobic metabolism only.
authors.affiliation: Water Treatment Center of SINOPEC, Research Institute of Petroleum Processing, Beijing 100083, China. zhangchao_seu@163.com
authors.forename: Chao
authors.initials: C
authors.lastname: Zhang
authors.forename: Yin-Guang
authors.initials: YG
authors.lastname: Chen
mesh_terms: D019342:Acetic Acid / Q000737:chemistry; D000332:Aerobiosis; D001419:Bacteria / Q000378:metabolism; D002244:Carbon / Q000737:chemistry; D005232:Fatty Acids, Volatile / Q000737:chemistry*; D007700:Kinetics; D008962:Models, Theoretical; D009930:Organic Chemicals / Q000302:isolation & purification / Q000378:metabolism; D010758:Phosphorus / Q000302:isolation & purification* / Q000378:metabolism; D011422:Propionates / Q000737:chemistry; D012722:Sewage / Q000737:chemistry / Q000382:microbiology*; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D005232:Fatty Acids, Volatile; D009930:Organic Chemicals; D011422:Propionates; D012722:Sewage; D010758:Phosphorus; D002244:Carbon; C029658:propionic acid; D019342:Acetic Acid