LABORATORY STUDY OF ELECTRO-COAGULATION-FLOTATION FOR WATER TREATMENT

Electro-coagulation ? flotation. Using aluminum electrode, Al(III) is produce in the solution, coagulation-flocculation occurs and a flotation tank allow the phase separation. The pH ranges between 6.5 and 7.8. The electrical energy is lower than 20 kWh/kgAl and the current densities are between 10 and 20 A/m2. A efficiency was found superior at 20 % that with conventional coagulation system.