C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
204/124
C02F 1/461 (2006.01) B01D 17/06 (2006.01) B01D 61/42 (2006.01)
Patent
CA 1291441
ABSTRACT OF THE DISCLOSURE The invention relates to an electrode unit to be used for purification of emulsions and polluted waters, especially oil-bearing waters, by means of electrolysis. The liquid to be treated is made to flow past electrodes which together form an adjustable spacing between the electrode tips. When only one soluble electrode is used, the feeding of this electrode causes a problem, especially when a fairly high purification effect is wanted. In the present invention, this problem is solved by forming the electrodes of vertically placed plates made of a soluble material. Each plate is insulated from the adjacent pla- tes. The current density between the electrodes, i.e. the so-called tip effect, is kept within the desired area. The depth of immersion of the electrode unit is preferably kept low, so that between the plates a quite high current den- sity is reached, so that a flocculation of impurities in the treated liquid is achieved. In order to prevent a passivation of the electrodes, the unit is fed from a direct-current supply, the polarity of whose voltage is periodically changed. -12-
511714
Haario Martti T.j.
Maunula Mikko
Valanti Pentti A.
Eleclean Oy
Fetherstonhaugh & Co.
Haario Martti T.j.
Maunula Mikko
Oy Partek Ab
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