Math. Model. Nat. Phenom.
Volume 4, Number 5, 2009Modelling of geographical processes and natural resources
|Page(s)||128 - 143|
|Published online||02 October 2009|
Robust Feedback Control Design for a Nonlinear Wastewater Treatment Model
FSJES, University My Ismail, B.P. 3102, Toulal, Meknes, Morocco
2 EIMA, FS, University Ibn Tofail, B.P. 133, Kénitra, Morocco
3 GREQAM, University la Méditerranée, 2 rue de la Charité, 13002 Marseille, France
Corresponding author: email@example.com
In this work we deal with the design of the robust feedback control of wastewater treatment system, namely the activated sludge process. This problem is formulated by a nonlinear ordinary differential system. On one hand, we develop a robust analysis when the specific growth function of the bacterium μ is not well known. On the other hand, when also the substrate concentration in the feed stream sin is unknown, we provide an observer of system and propose a design of robust feedback control in term of recycle rate, in order to keep the pollutant concentration lower than an allowed maximum level sd.
Mathematics Subject Classification: 92D25 / 37N25 / 93B07 / 93B51 / 93B52 / 93D20
Key words: wastewater treatment / dynamical systems / stability / robustness / feedback control / activated sludge
© EDP Sciences, 2009
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.