Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1976-09-09
1978-01-24
Engle, Samuel W.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204299R, 204301, 356105, 356208, B01K 500, B01D 1302, G01N 2106
Patent
active
040702634
ABSTRACT:
The invention relates to an improved method and apparatus for the measurement of the movement of colloidal particles in suspensions or solutions, wherein an electrophoresis tank is equipped with two electrodes and a filtering membrane positioned substantially parallel and equidistant to the electrodes.
A flat beam of radiation produced at the outside of the tank having a thickness of not more than 1000 .mu. as viewed in the direction of the lines of force of the electrical field set up between the electrodes is directed so as to skim the side of the membrane from which the particles move under the effect of the electric field.
With this improved arrangement the influence of secondary interfering phenomena appearing essentially when measuring the movement of colloidal particles in highly mineralized waste waters, can be eliminated.
REFERENCES:
patent: 3346478 (1967-10-01), Wiedemann
patent: 3668107 (1972-06-01), Lappe
patent: 3849002 (1974-11-01), Hach
patent: 3865548 (1975-02-01), Padawer
patent: 3930736 (1976-01-01), Coulter
patent: 3989613 (1976-11-01), Gritzner
Bonnemay Maurice Gabriel Ernst
Dassonville Vincent
Gaessler Henri Pierre
Levart Michel Marc
Richard Yves Robert
Degremont
Engle Samuel W.
Walsh Donald P.
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