Studies in which a material-based electrode investigation was performed for the electrochemical oxidation of landfill leachates.
|COD removal efficiency
|N-NH4 removal efficiency
|Chiang et al. 
|Ti/Sn-Pd-Ru > Ti/Ru-Ti > Ti/PbO2 > graphite
|correlation between the COD removal efficiency and chlorine/hypochlorite production
removal of ammonium was mainly due to the indirect oxidation effect of chlorine/hypochlorite
|Cossu et al. 
|Ti/PbO2 ≈ Ti/SnO2
|substantial differences did not arise when the anodic material was Ti/PbO2 or Ti/SnO2
|Panizza et al. 
|BDD > Ti/PbO2 > Ti/Ti-Ru-Sn
|with the PbO2 anode, ammonium and colour were completely removed after 8 h; formation of intermediates
complete COD, colour and ammonium removal with BDD
|Fernandes et al. [13,14]
|BDD ≈ Ti/Pt/PbO2 ≈ Ti/Pt/SnO2-Sb2O4
|Ti/Pt/PbO2 > BDD > Ti/Pt/SnO2-Sb2O4
|ammonium to nitrate conversion was higher in BDD than other metal oxides
COD and N-NH4 removal rates increased with chloride ion concentration,
|BDD 10k ≈ BDD 5k ≈ BDD 0.5k
|BDD 10k ≈ BDD 0.5k > BDD 5k
|a decrease in the sp3/sp2 ratio of the applied BDD material resulted in the elevated removal efficiency of N-NH4
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