TY - JOUR
T1 - Monitoring biofilm thickness using a non-destructive, on-line, electrical capacitance technique
AU - Maurício, R.
AU - Dias, C.J.
AU - Santana, F.
PY - 2006/8
Y1 - 2006/8
N2 - The present study was designed to evaluate indirect, non-invasive, on-line measurement of biofilm thickness using an electrical capacitance technique. Several assays were carried out and the results showed that, at a frequency of 1 kHz, electrical capacitance could be used to measure biofilm thickness indirectly (with a correlation coefficient of 0.9495). The reproducibility revealed by the assays was also highly satisfactory. However, in contrast to what was expected, there was an inverse relationship between electrical capacitance and biofilm thickness, i.e. electrical capacitance diminished with the increase in the biofilm thickness. The tests were also carried out at different frequencies (1 kHz, 10 kHz and 100 kHz).
AB - The present study was designed to evaluate indirect, non-invasive, on-line measurement of biofilm thickness using an electrical capacitance technique. Several assays were carried out and the results showed that, at a frequency of 1 kHz, electrical capacitance could be used to measure biofilm thickness indirectly (with a correlation coefficient of 0.9495). The reproducibility revealed by the assays was also highly satisfactory. However, in contrast to what was expected, there was an inverse relationship between electrical capacitance and biofilm thickness, i.e. electrical capacitance diminished with the increase in the biofilm thickness. The tests were also carried out at different frequencies (1 kHz, 10 kHz and 100 kHz).
KW - Non-destructive technique
KW - On-line measurement
KW - Biofilm thickness
KW - Electrical capacitance
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-33746710312&partnerID=MN8TOARS
U2 - 10.1007/s10661-005-9045-0
DO - 10.1007/s10661-005-9045-0
M3 - Article
SN - 0167-6369
SP - 599
EP - 607
JO - Environmental Monitoring and Assessment
JF - Environmental Monitoring and Assessment
ER -