Title :
Biomass Monitoring Using Acoustic Spectroscopy
Author :
Lindgren, Tobias ; Hamp, Sven
Author_Institution :
Swedish Electrostatics, Stockholm
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;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2006.881434
