Review Article

Removal of Organic Matter from Landfill Leachate by Advanced Oxidation Processes: A Review

Table 6

Summary of the highest reported COD removal of some AOPs.

AOPsOptimal conditionInitial COD (mg/L)COD removal efficiency (%)Reference

O33 g/L346048[24]
O3/H2O2O3: 3.5 g/gCOD H2O2 g/g O3200095[28]
O3/UVO3: 3.5 g/gCODUV:1500 W26,00063[36]
FentonpH: 2.5, [H2O2]: 0.15 M, H2O2/Fe2+ (molar ratio): 3889489[48]
Photo-FentonFe2+: 2000 mg/L, H2O2: 10000 mg/L3823.886[51]
Electro-FentonpH: 3, H2O2: 0.34 mol/L, Fe2+: 0.038 mol/L, I: 2 A, d = 2.1 cm500083[54]
Electrochemical oxidationCurrent density: 116.0 mA/cm2185573[61]