Removal of Organic Matter from Landfill Leachate by Advanced Oxidation Processes: A Review
Table 5
Influence of operating factors in electro-oxidation of leachate [57].
Operating factor
Influence
Anode materials
Anode materials with high electrocatalytic activity and high anodic oxygen evolution potential cause a high COD and NH3–N removal efficiency; usage of metal anode such as Fe and Al causes simultaneous electro-oxidation and electro-coagulation
pH
The influence of pH is unclear. Reported results are inconsistent
Current density
Increase in current density causes increase in removal efficiencies of COD and color
Chloride ion concentration
Increase in Cl- concentration improves removal of pollutants, but increase the hazard of formation of chlorinated organics
Additional electrolytes
Effects of additional electrolytes depend on their species and properties