Parameter calibration in a model of the secondary settling tank in wastewater treatment
(2013) In Master's Theses in Mathematical Sciences FMA820 20122Mathematics (Faculty of Engineering)
- Abstract
- In a wastewater treatment plant, particles (activated sludge) are separated from the liquid in a process called continuous sedimentation. This process is of crucial importance when purifying water in a wastewater treatment plant. This report will focus on a special case of sedimentation, namely batch sedimentation, which means that no flux into or out from the sedimentation tank are present. The goal is to implement and calibrate a mathematical model, that describes the phenomenon. During batch sedimentation, both in reality and in the model world, the conservation law implies solutions with shock waves. These shock waves set high standard for the numerical method used in the implementation. A specific model for this purpose is going to be... (More)
- In a wastewater treatment plant, particles (activated sludge) are separated from the liquid in a process called continuous sedimentation. This process is of crucial importance when purifying water in a wastewater treatment plant. This report will focus on a special case of sedimentation, namely batch sedimentation, which means that no flux into or out from the sedimentation tank are present. The goal is to implement and calibrate a mathematical model, that describes the phenomenon. During batch sedimentation, both in reality and in the model world, the conservation law implies solutions with shock waves. These shock waves set high standard for the numerical method used in the implementation. A specific model for this purpose is going to be used. Some interesting results were found about the induction period in the initial phase of the sedimentation. Further improvements were observed when dispersion was taken into account in the model. Nevertheless, there is no doubt about the fact that more research in this area is needed. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/3865285
- author
- Lindahl, Erik LU
- supervisor
-
- Stefan Diehl LU
- organization
- course
- FMA820 20122
- year
- 2013
- type
- H2 - Master's Degree (Two Years)
- subject
- keywords
- batch sedimentation, parameter calibration, wastewater treatment, inverse modelling, shock wave
- publication/series
- Master's Theses in Mathematical Sciences
- report number
- LUTFMA-3251-2013
- ISSN
- 1404-6342
- other publication id
- 2013:E36
- language
- English
- id
- 3865285
- date added to LUP
- 2013-09-20 12:25:48
- date last changed
- 2015-09-07 20:02:37
@misc{3865285, abstract = {{In a wastewater treatment plant, particles (activated sludge) are separated from the liquid in a process called continuous sedimentation. This process is of crucial importance when purifying water in a wastewater treatment plant. This report will focus on a special case of sedimentation, namely batch sedimentation, which means that no flux into or out from the sedimentation tank are present. The goal is to implement and calibrate a mathematical model, that describes the phenomenon. During batch sedimentation, both in reality and in the model world, the conservation law implies solutions with shock waves. These shock waves set high standard for the numerical method used in the implementation. A specific model for this purpose is going to be used. Some interesting results were found about the induction period in the initial phase of the sedimentation. Further improvements were observed when dispersion was taken into account in the model. Nevertheless, there is no doubt about the fact that more research in this area is needed.}}, author = {{Lindahl, Erik}}, issn = {{1404-6342}}, language = {{eng}}, note = {{Student Paper}}, series = {{Master's Theses in Mathematical Sciences}}, title = {{Parameter calibration in a model of the secondary settling tank in wastewater treatment}}, year = {{2013}}, }