BIOSORPTION OF Pb2+, Cd2+, & Ni2+ FROM WATERS BY ...
BIOSORPTION OF Pb2+, Cd2+, & Ni2+ FROM WATERS BY ...
BIOSORPTION OF Pb2+, Cd2+, & Ni2+ FROM WATERS BY ...
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Sorption (%)<br />
100.0<br />
80.0<br />
60.0<br />
40.0<br />
20.0<br />
0.0<br />
10.0 50.0 100.0 150.0 200.0<br />
concentration (mg/L)<br />
250.0<br />
500.0<br />
Pb<br />
Cd<br />
Ni<br />
Figure 3.10. Effect of initial metal ion concentration on biosorption of Pb 2+ , Cd 2+ , and<br />
Ni 2+ by Dunaliella salina (10.0 mg of biosorbent, sorption time of 60 min,<br />
solution pH of 6.0, 10.0 mL of solution with different metal ion<br />
concentrations)<br />
Sorption (%)<br />
100.0<br />
80.0<br />
60.0<br />
40.0<br />
20.0<br />
0.0<br />
10.0 50.0 100.0 150.0 200.0 250.0<br />
concentration (mg/L)<br />
500.0<br />
Pb<br />
Cd<br />
Ni<br />
Figure 3.11. Effect of initial metal ion concentration on biosorption of Pb 2+ , Cd 2+ , and<br />
Ni 2+ by Oocystis sp. (10.0 mg of biosorbent, sorption time of 60 min,<br />
solution pH of 6.0, 10.0 mL of solution with different metal ion<br />
concentrations)<br />
Ni<br />
Cd<br />
Pb<br />
Ni<br />
Cd<br />
Pb<br />
44
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