Electronic Impedance Spectroscopy

EIS is a sensitive tool, capable of detecting the early onset of membrane fouling.

CMS has adapted established impedance spectroscopy science to identify the various factors that affect membrane performance.

Alternating current of known amplitude and angular frequency is injected through the membrane and the potential difference response measured. CMS analyses impedance over a range of frequencies to provide a nuanced analysis.

During the early stage of fouling the impedance spectra change significantly and well ahead of changes in conventional matrices.

With eModules, EIS data can be captured at any number of points within an individual pressure vessel, stage or train, significantly enhancing knowledge of a plant’s fouling dynamics, allowing the application of focused and relevant remediation.

EIS analysis leads to a greater understanding of the effectiveness of chemical treatments, leading to more effective chemical dosing and reduced maintenance chemicals.

Access papers relating to EIS and Optimisation.