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Analyses of Activated Sludge Processes Consisting of a Plug-Flow Reactor and a Non-ideal Settler
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Division of Systems and Control. Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Automatic control.
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Division of Systems and Control. Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Automatic control.
2015 (English)In: Proc. 9th IWA Symposium on Systems Analysis and Integrated Assessment, 2015Conference paper, Poster (with or without abstract) (Other academic)
Abstract [en]

An activated sludge process (ASP) consisting of a plug-flow reactor (PFR) and a non-ideal settler is modelled and analysed. One soluble substrate component and one particulate biomass are assumed. The biomass growth rate is described by a Monod function. The settler model includes hindered settling and compression. A model describing the steady-state behaviour of the ASP is derived which constrains the settler to work with a fixed sludge blanket height in the thickening zone. The model provides new understanding for these types of ASPs and may be used for novel design schemes. The numerical example suggests that the steady-state solutions of the ASP give a one-parameter family of solutions, where the parameter is the recycle ratio r.

Place, publisher, year, edition, pages
2015.
National Category
Control Engineering Water Treatment
Identifiers
URN: urn:nbn:se:uu:diva-257699OAI: oai:DiVA.org:uu-257699DiVA: diva2:840320
Conference
WATERMATEX 2015, June 14–17, Gold Coast, Queensland, Australia
Available from: 2015-07-07 Created: 2015-07-07 Last updated: 2015-07-09

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Carlsson, BengtZambrano, Jesús

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