Document Type and Number:
Japanese Patent JPS5530916
Kind Code:
B2
Abstract:
Process and apparatus for recovering clean water from aqueous wastes by evaporation while avoiding scaling and fouling as well as corrosion of the evaporator tubes. Addition of an oil, preferably a volatile oil, to the aqueous waste feed results in the formation of a coating of said oil on the surfaces of the tubes, thereby preventing corrosion and fouling and build-up of scale deposits. Volatile oil that distills over is separated from the aqueous distillate by conventional means and may be recirculated.
Application Number:
JP9811178A
Publication Date:
August 14, 1980
Filing Date:
August 11, 1978
Export Citation:
International Classes:
B01D1/26; C02F1/04; C02F1/16; C02F5/00; C02F5/08; C02F5/10; C02F11/00