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Fig. 6 Schematic diagram of an electrocoagulation process
3. Pollutants adsorption
4. Separation of pollutants by floatation or sedimentation.
Factors affecting electro coagulation are
• Effect of pH
• Effect of Current Density
• Effect of Electrode Material
• Effect of Electrolyte (NaCl) Concentration
• Effect of electrocoagulation Time
• Electrical Energy and Electrode Consumption
• Effect of Applied Voltage
• The Effect of Inter Electrode Distance
• Effect of Operating Temperature
• Effect of Initial Dye Concentration.
Electro Flotation
Electro flotation is a subsequent process of electro coagulation. In electrochemical
reaction, small even size bubble of gases such as hydrogen from cathode and oxygen
from anode are evolved. These evolved gases will assist to floats the pollutants to the
water surface.