Process for monitoring biofilm activity

Details Process for monitoring biofilm activity Process for monitoring biofilm activity

1993-04-16

1994-10-18

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

2041531, 20415311, G01N 2726

Patent

active

053565215

ABSTRACT:
Disclosed is a novel electrochemical probe and technique to monitor biofilm activity before the biofilm has been permanently established and microbiologically influenced corrosion (MIC) initiated. This probe includes two sets of metal electrodes isolated from each other. A power source is used to apply a potential difference of between 50 and 500 mV on the two sets of electrodes to activate the probe. Programmed timing, measuring and switching equipment and a data recording device monitors the biofilm-caused depolarization effects on the electrode sets by measuring an increase of DC current produced by the applied potential difference. The equipment also monitors DC current generated between the electrodes after removing the power source and records the AC resistance between the electrodes indicating mostly the resistance of the biofilm covering the electrodes.

REFERENCES:
patent: 3331021 (1967-07-01), Marsh et al.
patent: 3661750 (1972-05-01), Wilson

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