title: Using a carbon-based ASM3 EAWAG Bio-P for modelling the enhanced biological phosphorus removal in anaerobic/aerobic activated sludge systems.
abstract: Modelling of activated sludge processes is a commonly used technique to design and optimize wastewater treatment processes. Since wastewater and activated sludge is characterized by chemical oxygen demand (COD) measurements, units of state variables describing organic matter are expressed as equivalent amounts of COD. However, current procedures for measuring it have several drawbacks, including the production of hazardous wastes, so the utility of other variables for characterizing the organic load in modelling, such as total organic carbon (TOC), warrant re-evaluation. Other advantages of TOC over COD are that it provides matrix-independent analytical results and it can be readily measured online. Proposals for TOC-based models were made in the 1990s, but they seem to have sunk into obscurity. To re-assess the value of TOC for this purpose, we have recalculated the EAWAG module for Bio-P removal coupled to the Activated Sludge Model No. 3 on a TOC basis, and tested it against data acquired in batch experiments with four single carbon sources (acetate, glucose, citrate and casein). The batch test-based calibrations showed a good match with experimental data, following modifications of the model to account for the anaerobic volumes and retention times applied in the tests.
authors.affiliation: Institute of Food Technology and Bioprocess Engineering, TU Dresden, Bergstraße 120, 01062 Dresden, Germany. Mirko.Trutnau@tu-dresden.de
authors.forename: Mirko
authors.initials: M
authors.lastname: Trutnau
authors.forename: Mike
authors.initials: M
authors.lastname: Petzold
authors.forename: Lysann
authors.initials: L
authors.lastname: Mehlig
authors.forename: Martin
authors.initials: M
authors.lastname: Eschenhagen
authors.forename: Katja
authors.initials: K
authors.lastname: Geipel
authors.forename: Susann
authors.initials: S
authors.lastname: Müller
authors.forename: Thomas
authors.initials: T
authors.lastname: Bley
authors.forename: Isolde
authors.initials: I
authors.lastname: Röske
mesh_terms: D000085:Acetates / Q000737:chemistry / Q000378:metabolism; D001420:Bacteria, Aerobic / Q000378:metabolism; D001421:Bacteria, Anaerobic / Q000378:metabolism; D057919:Biological Oxygen Demand Analysis / Q000592:standards; D018533:Biomass; D019149:Bioreactors / Q000382:microbiology* / Q000592:standards*; D002138:Calibration; D002244:Carbon / Q000737:chemistry* / Q000378:metabolism; D002364:Caseins / Q000737:chemistry / Q000378:metabolism; D019343:Citric Acid / Q000737:chemistry / Q000378:metabolism; D005947:Glucose / Q000737:chemistry / Q000378:metabolism; D008954:Models, Biological; D010758:Phosphorus / Q000032:analysis* / Q000737:chemistry; D012722:Sewage / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods
chemical_list: D000085:Acetates; D002364:Caseins; D012722:Sewage; D010758:Phosphorus; D019343:Citric Acid; D002244:Carbon; D005947:Glucose