Feedback-feedforward control of a sewer

Author

Avowlanou, K. ; Dochain, D.

Author_Institution

Univ. Catholique de Louvain, Louvain-La-Neuve, Belgium

fYear

2001

fDate

4-7 Sept. 2001

Firstpage

3833

Lastpage

3838

Abstract

This paper deals with the design of a feedback-feedforward controller for a sewer. The objective is to reduce the concentration of macromolecules (typically proteins, lipids and polysaccharides) entering the wastewater plant via the addition of a consortium of enzymes and bacteria in the sewer connecting houses to the plant. The hydrodynamics of the sewer are basically plug flow ones. An experimental set-up has been built in order to simulate the behaviour of the sewer at laboratory scale. The design of the controller is based on a simplified model of the sewer consisting of a CSTR model plus a time delay. The controller includes feedforward action in order to reduce the influence of the periodical variation of the influent pollutants. The controller performance is illustrated in numerical simulation.

Keywords

control system synthesis; delays; feedback; feedforward; sanitary engineering; wastewater treatment; CSTR model; bacteria; continuous stirred tank reactor; enzymes; feedback-feedforward controller design; hydrodynamics; influent pollutant periodical variation; macromolecule concentration reduction; sewer; time delay; wastewater plant; Europe; Biotechnological and environmental systems; adaptive linearizing control;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (ECC), 2001 European

Conference_Location

Porto

Print_ISBN

978-3-9524173-6-2

Type

conf

Filename

7076532