Figure 5

Change of chemical speciation distributions of heavy metals under different H2O2 dosage at a pH of 4.5, 4.0 and 3.0, total concentration of heavy metal in the raw sludge was set as 100%.
Change of chemical speciation distributions of heavy metals under different H2O2 dosage at a pH of 4.5, 4.0 and 3.0, total concentration of heavy metal in the raw sludge was set as 100%.