Feedback control method for estimating the oxygen uptake rate in activated sludge systems

Author

Catunda, Sebastian Yuri Cavalcanti ; Deep, Gurdip Singh ; Van Haandel, Adrianus C. ; Freire, Raimundo Carlos Silverio

Author_Institution

Univ. Fed. do Maranhao, San Luis, Brazil

Volume

48

Issue

4

fYear

1999

fDate

8/1/1999 12:00:00 AM

Firstpage

864

Lastpage

869

Abstract

The measurement and utilization of the respiration rate or oxygen uptake rate (OUR) is very important in activated sludge system control. It provides information about the quality of the influent, activated sludge quality and can indicate the presence of toxic elements that can poison the system. The existing methods for continuously measuring and estimating the OUR have, generally, a long sampling interval of a few minutes. An alternative respiration rate meter with much shorter response time is proposed. The results of simulation studies, as well as experimental results of a microcontroller based data acquisition system connected to a PC, around a laboratory scale biological reactor are presented

Keywords

biotechnology; chemical variables control; feedback; microorganisms; water pollution measurement; water treatment; activated sludge quality; activated sludge systems; aerobic bacteria; biological control systems; feedback control method; influent quality; laboratory scale biological reactor; microcontroller based data acquisition system; oxygen uptake rate estimation; respiration rate meter; shorter response time; toxic elements; water pollution; Biological system modeling; Control systems; Data acquisition; Delay; Feedback control; Inductors; Laboratories; Microcontrollers; Sampling methods; Toxicology;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.779191

Filename

779191