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Titolo:
Feedforward control of the external carbon flow rate in an activated sludge process
Autore:
Samuelsson, P; Carlsson, B;
Indirizzi:
Uppsala Univ, Dept Syst & Control, SE-75103 Uppsala, Sweden Uppsala Univ Uppsala Sweden SE-75103 & Control, SE-75103 Uppsala, Sweden
Titolo Testata:
WATER SCIENCE AND TECHNOLOGY
fascicolo: 1, volume: 43, anno: 2001,
pagine: 115 - 122
SICI:
0273-1223(2001)43:1<115:FCOTEC>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Keywords:
activated sludge process; automation; control; denitrification; feedforward control; external carbon; nutrient removal;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Samuelsson, P Uppsala Univ, Dept Syst & Control, POB 27, SE-75103 Uppsala,Sweden Uppsala Univ POB 27 Uppsala Sweden SE-75103 Uppsala, Sweden
Citazione:
P. Samuelsson e B. Carlsson, "Feedforward control of the external carbon flow rate in an activated sludge process", WATER SCI T, 43(1), 2001, pp. 115-122

Abstract

Biological nitrogen removal in an activated sludge process is obtained by two biological processes: nitrification and denitrification. Denitrifying bacteria need sufficient amounts of readily metabolized carbon. The objective of this paper is to develop an automatic control strategy for adjusting the external carbon flow rate so that the nitrate concentration in the last anoxic compartment is kept at a low prespecified level. A simple model based feedforward control combined with a standard feedback PI controller is suggested. Simulation results show that the suggested controller, despite being simple, effectively attenuates process disturbances.

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Documento generato il 20/09/20 alle ore 07:40:57