Dual system using three electrodes to treat fluid

Details Dual system using three electrodes to treat fluid Dual system using three electrodes to treat fluid

1991-02-20

1994-07-12

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

204130, 204144, 204186, 204248, 204302, C02F 146, C02F 500

Patent

active

053285727

ABSTRACT:
The present invention is drawn to a method and apparatus for treating electrically conductive fluid. Positive and negative electrodes of electrically conductive materials having different electrochemical potentials are spaced apart and electrically isolated from one another so that the only electroconductive connection that develops an electrochemical potential between the electrodes is established by fluid to be treated flowing between the electrodes. Such fluid is therefore ionized which will both prevent the precipitation of solids from the fluid which would tend to form a scale on the inner surface of piping through which the fluid flows, and aid in the removal of a previously formed scale. On the other hand, a third electrode is also provided so as to be electroconductively connected with the positive electrode but electrically isolated from the negative electrode. Therefore, the third electrode will release metal ions into the fluid. These ions will inhibit the release of a compound into the fluid having a principal element that is the same as that of the metal ions released by the electrode. In such a way, the fluid can also be treated to inhibit a particular compound, to which the fluid might be exposed, from dissolving into the fluid.

REFERENCES:
patent: 4902391 (1990-02-01), Ibbott
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B. Q. Welder et al., "Practical Performance of Water-Conditioning Gadgets", Industrial and Engineering Chemistry, vol. 46, No. 5, 1953, pp. 954-960.
G. V. James, Water Treatment, third edition, The Technical Press Ltd., London, 1966, pp. 164-167.
E. Nordell, Water Treatment For Industrial and Other Uses, second edition, Reinhold Publishing Corp., New York, 1961, pp. 268-272.
H. P. Godard, Editorial "Watch Out For Wondrous Water Treatment Witchcraft", Materials Performance, Apr. 1974, pp. 9.

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