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Evaluation and comparison of models and modelling tools simulating nitrogen processes in treatment wetlands

Publication Type:

Journal Article


Simulation Modelling Practice and Theory, Elsevier, Volume 16, Issue 1, p.26-49 (2007)


Denitrification, Ecological modelling, Evaluation, Modelica, Nitrification, Nitrogen, Treatment wetlands


<p>In this paper, two ecological models of nitrogen processes in treatment wetlands have been evaluated and compared. These models were implemented, simulated, and visualized using the Modelica modelling and simulation language [P. Fritzson, Principles of Object-Oriented Modelling and Simulation with Modelica 2.1 (Wiley-IEEE Press, USA, 2004).] and an associated tool. The differences and similarities between the MathModelica Model Editor and three other ecological modelling tools have also been evaluated. The results show that the models can well be modelled and simulated in the MathModelica Model Editor, and that nitrogen decrease in a constructed treatment wetland should be described and simulated using the Nitrification/Denitrification model as this model has the highest overall quality score and provides a more variable environment.</p>


<p>From Bachelor thesis,</p>
<p>Modelica was compared with Simile, Stella and PowerSim</p>
<p>It would be interesting to evaluate the comments on Simile.</p>