Heavy metals (μg/L) Landfill leachate
Before treatment After treatment % Removal
Copper (Cu) <1 <1
Chromium (Cr) 20 6 70
Lead (Pb) <10 <10
Nickel (Ni) 30 10 66
Zinc (Zn) <2 <2
Table 2: Percent removal of heavy metal from Leachates by Chlorella