|
PREDICTIVE CONTROL OF NITROGEN REMOVAL IN WWTPS USING PARSIMONIOUS MODELS
J. Alex1, R. Tschepetzki2 and U. Jumar1
1 ifak Magdeburg, Steinfeldstr. 3, D-39179 Barleben, Germany, Tel.: +49 39203 8100,
Fax: +49 39203 81100, Email: ali@ifak.fhg.de, ju@ifak.fhg.de
2 ifak system GmbH, Schleinufer 11, D-39104 Magdeburg, Germany, Tel.: +49 391 54456380,
Fax: +49 391 54456399, Email: rts@ifak-system.com
In the paper, control possibilities for the nitrogen removal process within activated sludge wastewater treatment plants are discussed. A predictive controller is introduced which aims to reduce the peaks in effluent concentration for ammonia nitrogen. Additionally, the controller improves the overall nitrogen removal using less aeration energy. A parsimonious deterministic model is used for the prediction of the effluent ammonia concentration. The main parameter of the model is used for the model adaptation. The performance of the developed controller is evaluated using a benchmark simulation model of treatment plant introduced by an international work group.
Keywords: Predictive control, Simulation, Observers, Water pollution, Model-based control
Session slot T-Tu-A13: Optimisation and integrated control of wastewater treatment plants/Area code 7d : Control of Biotechnological Processes
 |
