Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1988-11-28
1990-06-19
Niebling, John F.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204164, B03C 500, C02F 100
Patent
active
049351133
ABSTRACT:
Disclosed is a process for purifying an aqueous effluent which is formed by the scrubbing with water of the exhaust air from paint, lacquer and varnish spray booths. In the process the aqueous effluent is sprayed at a temperature between 10 and 80.degree. C. vertically from top to bottom into an electric field, which is established between a corona electrode and a collecting electrode and has a voltage between 10,000 and 80,000 volts, a field strength between 0.5 and 10 kV/cm and contains air as a dielectric. The aqueous effluent drained from the collecting electrode is received by a separator, in which the particles of coloring matter and any solvent are separated from the water by density separation.
REFERENCES:
patent: 3729898 (1973-05-01), Richardson
patent: 3856476 (1974-12-01), Seversky
Boning Gunter
Mayer-Schwinning Gernot
Metallgesellschaft Aktinegesellschaft
Niebling John F.
Phasge Arun S,.
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