Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
Patent
1994-01-13
1995-11-28
Drodge, Joseph W.
Liquid purification or separation
Processes
Including controlling process in response to a sensed condition
210 961, 2101981, 2041531, 204407, 324439, 422 8201, 436150, B01D 2130
Patent
active
054704847
ABSTRACT:
A method for controlling the chemical treatment of a solution comprises the steps of feeding a treatment chemical into the solution, applying an external voltage across a reference electrode and a working electrode of a voltammetric sensor while the electrodes are immersed in the solution, measuring a current that flows through the working electrode, converting the measured current into a feedback signal indicative of the concentration of treatment chemical in the solution, and using the feedback signal to control the rate of feeding the treatment chemical.
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Buckman Laboratories International Inc.
Drodge Joseph W.
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