title: Respirometry-based on-line model parameter estimation at a full-scale WWTP.
abstract: This paper describes part of a project to develop a systematic approach to knowledge extraction from on-line respirometric measurements in support of wastewater treatment plant control and operation. The paper deals with the following issues: (1) test of the implementation of an automatic set-up consisting of a continuous laboratory respirometer integrated in a mobile trailer with sampling and dosing equipment, and data-acquisition and communication system; (2) assessment of activated sludge/sewage characteristics from sludge respirograms by model parameter estimation; (3) comparison of the parameter estimates with regular plant data and information obtained from supplementary wastewater respirograms. The paper describes the equipment and some of its measuring results from a period of one week at a large-scale wastewater treatment plant. The measurements were evaluated in terms of the common activated sludge modelling practice. The automatic set-up allowed reliable measurements during at least one week. The data were used to calibrate two different version of the model, and independent parameter estimates were obtained.
authors.affiliation: Department of Agrotechnology and Food Sciences, Wageningen University, The Netherlands.
authors.forename: H
authors.initials: H
authors.lastname: Spanjers
authors.forename: G G
authors.initials: GG
authors.lastname: Patry
authors.forename: K J
authors.initials: KJ
authors.lastname: Keesman
mesh_terms: D019149:Bioreactors; D003365:Costs and Cost Analysis; D009862:Online Systems; D010100:Oxygen / Q000378:metabolism; D012722:Sewage / Q000737:chemistry*; D013997:Time Factors; D018508:Water Purification / Q000379:methods*
chemical_list: D012722:Sewage; D010100:Oxygen