Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1993-03-23
1994-04-19
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
210748, C02F 1461
Patent
active
053042891
ABSTRACT:
A method for treating water and apparatus therefor. The water is treated by applying high-frequency saw-tooth AC voltage to electrodes in the water. The apparatus have a DC voltage source; a low current-and-output voltage setting unit connected to the DC voltage source; an alternate switching circuit having first and second switching sections connected to the DC voltage source through the low current-and-output voltage setting unit; an alternate switching commander circuit receiving high frequency signals from a high-frequency oscillator to produce rectangular wave output signals for controlling the first and second switching sections, alternately; a capacitor connected between output terminals of the first and second switching sections to receive DC voltage through one of the first and second switching sections alternately, a polarity of the DC voltage being changed at a high frequency by the control signals from the alternate switching commander circuit, to produce saw-tooth voltage at high-frequency; and first and second electrodes connected to said capacitor and arranged in the water to be treated to give the high-frequency saw-tooth voltage to the water.
REFERENCES:
patent: 3637482 (1972-01-01), Vajda
patent: 4865747 (1989-09-01), Larson et al.
patent: 4963268 (1990-10-01), Morse
patent: 5071532 (1991-12-01), Taillet et al.
patent: 5183512 (1993-02-01), Bragger
Niebling John
Phasge Arun S,.
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