Title:
FLOATING METHOD WHICH PURIFY WASTE WATER FOR INDUSTRY OR OF SELFFGOVERNING COMMUNITY
Document Type and Number:
Japanese Patent JPS5633080
Kind Code:
A
Abstract:
In a flotation method for purification of industrial or municipal waste water, in which the waste water comes in contact with electrodes having an electrical potential capable of electrolytically decomposing a portion of the waste water, thereby creating an ascending stream of gas bubbles, the waste water is mixed before or during the electrolytic decomposition with wettable particles of polymer material which are practically insoluble in water and have an absolute density of 1.3 g/cm3 at the most. Polymeric materials, especially polyalkane fibrids, are suitable for use as particles. This process makes it possible to purify oil-containing waste water by electroflotation without forming an oil film on the electrodes.
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Inventors:
ERIASU YURUKE
Application Number:
JP11851780A
Publication Date:
April 03, 1981
Filing Date:
August 29, 1980
Export Citation:
Assignee:
BBC BROWN BOVERI & CIE
International Classes:
C02F1/46; B01D17/02; B03D1/02; B03D1/14; C02F1/465; C02F1/54; (IPC1-7): B03D1/02; C02F1/46