title: Evaluating the effects of scaling up on the performance of bioelectrochemical systems using a technical scale microbial electrolysis cell.
abstract: This study focuses on the challenges of the scaling up process of bioelectrochemical systems on the example of a technical scale microbial electrolysis cell referred to as the "prototype". Anodically treating real wastewater and operated in continuous mode at a hydraulic retention time of 1.23 d with an average chemical oxygen demand (COD)-loading rate of 0.5 g O2 d(-1) L Reactor(-1) the prototype on average showed COD removal efficiency of 67% with effluent concentrations of 210 mg O2 L(-1) and an ammonium elimination rate of 17.8 ± 3.9 mg Nd(-1) L Reactor(-1) resulting in effluent concentrations of 30.7 ± 3.7 mg NL(-1) with a removal efficiency of 40% at a current generation of 72 μA cm(-2) and Coulomb efficiency of 11%. A model is described as a method for comparing conventional and BES based technology using the above mentioned criteria and balancing them against the respective loading rates.
authors.affiliation: Institute of Environmental and Sustainable Chemistry, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany.
authors.forename: Robert Keith
authors.initials: RK
authors.lastname: Brown
authors.affiliation: Department of Environmental Microbiology, Helmholtz-Centre for Environmental Research - UFZ, Permoserstr. 15, 04318 Leipzig, Germany.
authors.forename: Falk
authors.initials: F
authors.lastname: Harnisch
authors.affiliation: Institute of Environmental and Sustainable Chemistry, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany.
authors.forename: Sebastian
authors.initials: S
authors.lastname: Wirth
authors.affiliation: Institute of Environmental and Sanitary Engineering, Technische Universität Braunschweig, Pockelsstr. 2a, 38106 Braunschweig, Germany.
authors.forename: Helge
authors.initials: H
authors.lastname: Wahlandt
authors.affiliation: Institute of Environmental and Sanitary Engineering, Technische Universität Braunschweig, Pockelsstr. 2a, 38106 Braunschweig, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Dockhorn
authors.affiliation: Institute of Environmental and Sanitary Engineering, Technische Universität Braunschweig, Pockelsstr. 2a, 38106 Braunschweig, Germany.
authors.forename: Norbert
authors.initials: N
authors.lastname: Dichtl
authors.affiliation: Institute of Environmental and Sustainable Chemistry, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany. Electronic address: uwe.schroeder@tu-braunschweig.de.
authors.forename: Uwe
authors.initials: U
authors.lastname: Schröder
mesh_terms: D057919:Biological Oxygen Demand Analysis; D004572:Electrolysis / Q000295:instrumentation*; D062065:Wastewater; D018508:Water Purification / Q000295:instrumentation
chemical_list: D062065:Wastewater
keywords: Bioelectrochemical system; Microbial electrolysis cell; Modeling; Scaling up; Technical scale