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Journal Articles Water Science and Technology Year : 2006

Stability analysis of a wastewater treatment plant with saturated control

Abstract

This paper presents a saturated proportional controller that achieves depollution of wastewater in a continuous anaerobic digester. This goal is reached by defining a region of the state-space where the depollution is achieved and forcing attractivity and invariance of this region. The control variable is the dilution rate and the controlled variable is a linear combination (S λ) of the substrates con-centrations, that could be the Chemical Oxygen Demand (COD) or the Biological Oxygen Demand (BOD), depending on the value of λ. No measurement of the substrates concentrations in the input flow is required; the only necessary measurement is S λ .
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Dates and versions

hal-01090322 , version 1 (03-12-2014)

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Frédéric Grognard, Olivier Bernard. Stability analysis of a wastewater treatment plant with saturated control. Water Science and Technology, 2006, 53 (1), pp.149-157. ⟨10.2166/wst.2006.017⟩. ⟨hal-01090322⟩
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