Liquid purification or separation – Processes – Utilizing electrical or wave energy directly applied to...
Patent
1984-04-17
1986-10-21
Williams, Howard S.
Liquid purification or separation
Processes
Utilizing electrical or wave energy directly applied to...
204186, 204188, 204190, 204302, 210243, 210767, 361226, B01D 1706, B03C 500, B03C 502
Patent
active
046184325
ABSTRACT:
In order to inject a net unipolar charge, for example using a charge injector (1), into a liquid containing a dispersed contaminant without risk of blockage or arcing in the charge injector which could arise if the contaminated liquid were passed through the charge injector (1) itself, instead a substantially contaminant-free liquid is passed through the charge injector (1) and then the charged contaminant-free liquid brought into contact with the contaminated fluid in a mixing chamber (33), for example. The invention finds particular application in the electrostatic removal of contaminant from a liquid, where the mixing chamber is provided within a separation vessel (6), preferably containing a bed of densely packed beads (32). In the mixing chamber, the contaminants migrate under the influence of the electric field induced in the liquid mixture and conglomerate on the exposed surface of the beads.
REFERENCES:
patent: 2054273 (1936-09-01), Subkow
patent: 4255777 (1981-03-01), Kelly
Hansen, PCT Publication No. WO82/01481, May, 1982.
Gleason Anthony M.
Mintz Donald J.
Exxon Research and Engineering Co.
Williams Howard S.
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