Water purification method

Details Water purification method Water purification method

1976-03-04

1978-06-13

Prescott, Arthur C.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204152, 210 44, 210 50, C25B 130, C02C 512

Patent

active

040947556

ABSTRACT:
An improved method and apparatus for continuously agglomerating solids of colloidal size of larger suspended in a liquid is disclosed. The process comprises passing the liquid between spaced electrode plates in the presence of a fluidized bed of conductive particles, and subjecting said liquid suspension to an electric field from alternating current applied across said electrodes through the conductive particles of said bed. The turbulence of the particles in said bed has been found to improve conductivity and current efficiency, minimize electrode erosion, and by a mechanical, scrubbing action of the bed particles, minimize fouling or scaling of the electrodes so that the suspending forces of said solids are rapidly and efficiently broken. The agglomerated solids may then be separated from the liquid by conventional means such as skimming, settling, flotation and the like.

REFERENCES:
patent: 857277 (1907-06-01), Harris
patent: 951314 (1910-03-01), Hartman
patent: 1194000 (1916-08-01), Dobyns et al.
patent: 3523891 (1970-08-01), Mehl
patent: 3767046 (1973-10-01), Hartkorn
patent: 3915820 (1975-10-01), Ito et al.

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