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URWARE Wastewater Treatment Plant Models

Jeppsson, Ulf LU ; Baky, A; Hellström, D; Jönsson, H and Kärrman, E (2005) In Urban Water rapport 2005:5.
Abstract
In this document, a large number of mathematical models describing various

physical, biological and chemical processes in a wastewater treatment

plant are presented. In most cases, the models are fairly simple as they are

inteded for steady-state simulations based on yearly averages of the influent

wastewater charteristics. The combination of models forms a software tool

namned URWARE (URban WAter REsearch model), which is a tool for

substance flow analysis and energy calculations in wastewater treatment

systems. All models are based on the MATLAB/Simulink platform.

The different models can be combined in any fashion thereby creating

various system structures... (More)
In this document, a large number of mathematical models describing various

physical, biological and chemical processes in a wastewater treatment

plant are presented. In most cases, the models are fairly simple as they are

inteded for steady-state simulations based on yearly averages of the influent

wastewater charteristics. The combination of models forms a software tool

namned URWARE (URban WAter REsearch model), which is a tool for

substance flow analysis and energy calculations in wastewater treatment

systems. All models are based on the MATLAB/Simulink platform.

The different models can be combined in any fashion thereby creating

various system structures that can be analysed and compared. The models

keep track of numerous substances related to wastewater, such as organic

substances, nutrients and to some extent heavy metals. Within all models the

release of environmentally hazardous substances to water, soil and air are

calculated. The results can be used as one (of many) information pathways

for strategic decision making related to urban water systems.

The individual models are described one by one and their behaviours are

exemplified by simulation results. In many cases, comparisons with other

available software models are given to validate (or at least make plausible)

the results produced by the fairly simple URWARE models. Simulation

results based on a combination of models into a complete wastewater

treatment plant are also presented. However, details about the underlying

theory and hypotheses on which the models are based cannot always be

sufficiently described due to space limitations. Moreover, users should always

be critical to any results predicted by models and not take them for

granted simply because they have been calculated by a computer model.

Knowledge about the real processes and comparisons with real data are

imperative to evaluate whether the predicted results are reasonable or not.

For the interested reader the complete source code to all models is included

in an extensive appendix.

A modelling task of this magnitude is never completed. The proposed

models can always be further developed, improved and refined. Consequently,

the models described in this document only represent the first

version of the URWARE software. Many issues remain to be solved and

further improvements to be done. However, it is the hope of the authors that

the presented models are mature enough to be used, evaluated, modified

and improved by other users outside the URWARE task group. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Book/Report
publication status
published
subject
in
Urban Water rapport
volume
2005:5
publisher
Urban Water, Chalmers University of Technology
external identifiers
  • other:CODEN: LUTEDX/(TEIE-7223)/1-163/(2005)
ISSN
1650-3791
language
English
LU publication?
yes
id
30d5045a-bf09-412f-97ed-6a0e464cbcf5 (old id 588059)
alternative location
http://www.iea.lth.se/publications/Reports/LTH-IEA-7223.pdf
date added to LUP
2007-10-30 12:06:21
date last changed
2016-04-16 03:41:10
@techreport{30d5045a-bf09-412f-97ed-6a0e464cbcf5,
  abstract     = {In this document, a large number of mathematical models describing various<br/><br>
physical, biological and chemical processes in a wastewater treatment<br/><br>
plant are presented. In most cases, the models are fairly simple as they are<br/><br>
inteded for steady-state simulations based on yearly averages of the influent<br/><br>
wastewater charteristics. The combination of models forms a software tool<br/><br>
namned URWARE (URban WAter REsearch model), which is a tool for<br/><br>
substance flow analysis and energy calculations in wastewater treatment<br/><br>
systems. All models are based on the MATLAB/Simulink platform.<br/><br>
The different models can be combined in any fashion thereby creating<br/><br>
various system structures that can be analysed and compared. The models<br/><br>
keep track of numerous substances related to wastewater, such as organic<br/><br>
substances, nutrients and to some extent heavy metals. Within all models the<br/><br>
release of environmentally hazardous substances to water, soil and air are<br/><br>
calculated. The results can be used as one (of many) information pathways<br/><br>
for strategic decision making related to urban water systems.<br/><br>
The individual models are described one by one and their behaviours are<br/><br>
exemplified by simulation results. In many cases, comparisons with other<br/><br>
available software models are given to validate (or at least make plausible)<br/><br>
the results produced by the fairly simple URWARE models. Simulation<br/><br>
results based on a combination of models into a complete wastewater<br/><br>
treatment plant are also presented. However, details about the underlying<br/><br>
theory and hypotheses on which the models are based cannot always be<br/><br>
sufficiently described due to space limitations. Moreover, users should always<br/><br>
be critical to any results predicted by models and not take them for<br/><br>
granted simply because they have been calculated by a computer model.<br/><br>
Knowledge about the real processes and comparisons with real data are<br/><br>
imperative to evaluate whether the predicted results are reasonable or not.<br/><br>
For the interested reader the complete source code to all models is included<br/><br>
in an extensive appendix.<br/><br>
A modelling task of this magnitude is never completed. The proposed<br/><br>
models can always be further developed, improved and refined. Consequently,<br/><br>
the models described in this document only represent the first<br/><br>
version of the URWARE software. Many issues remain to be solved and<br/><br>
further improvements to be done. However, it is the hope of the authors that<br/><br>
the presented models are mature enough to be used, evaluated, modified<br/><br>
and improved by other users outside the URWARE task group.},
  author       = {Jeppsson, Ulf and Baky, A and Hellström, D and Jönsson, H and Kärrman, E},
  institution  = {Urban Water, Chalmers University of Technology},
  issn         = {1650-3791},
  language     = {eng},
  series       = {Urban Water rapport},
  title        = {URWARE Wastewater Treatment Plant Models},
  volume       = {2005:5},
  year         = {2005},
}