Monitoring biofilm thickness using a non-destructive, on-line, electrical capacitance technique

被引：15

作者：

Mauricio, R. ^{[1
]}

Dias, C. J.

Santana, F.

机构：

[1] Univ Nova Lisboa, Fac Ciencias & Tecnol, Dep Ciencias & Engn Ambiente, P-2829516 Monte De Caparica, Portugal

[2] Univ Nova Lisboa, Fac Ciencias & Tecnol, Dept Ciencias Mat, P-2829516 Monte De Caparica, Portugal

来源：

ENVIRONMENTAL MONITORING AND ASSESSMENT | 2006年 / 119卷 / 1-3期

关键词：

electrical capacitance; biofilm thickness; non-destructive technique; on-line measurement;

D O I：

10.1007/s10661-005-9045-0

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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 I 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).

引用

页码：599 / 607

页数：9