Biomass Monitoring Using Acoustic Spectroscopy

Author

Lindgren, Tobias ; Hamp, Sven

Author_Institution

Swedish Electrostatics, Stockholm

Volume

6

Issue

5

fYear

2006

Firstpage

1068

Lastpage

1075

Abstract

A sensor for measuring the concentration of microorganisms using acoustic spectroscopy in the audible frequency range was evaluated. Tests were made on a monoculture of Escherichia coli in pilot plant scale and on active biological sludge from two municipal water purification plants. The evaluation of acoustic spectra resulted in the conclusion that the sensor is useful for online cell density measuring and for the detection of morphological changes in monocultures but not for use on active biological sludge. For this purpose, a data analytical method, i.e., fingerprint analysis of collected data, might be of use

Keywords

biological techniques; cellular biophysics; microorganisms; Escherichia coli; acoustic spectroscopy; active biological sludge; biomass monitoring; biosensor; cell density; chemical sensor; concentration measurement; fermentation; fingerprint analysis; microorganisms; morphological change detection; municipal water purification plants; Acoustic measurements; Acoustic sensors; Biomass; Biosensors; Data analysis; Frequency measurement; Microorganisms; Monitoring; Plants (biology); Spectroscopy; Acoustic; biological sludge; cell density; fermentation; sensor;

fLanguage

English

Journal_Title

Sensors Journal, IEEE

Publisher

ieee

ISSN

1530-437X

Type

jour

DOI

10.1109/JSEN.2006.881434

Filename

1703462