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 />
1 2 3 4 5<br />
successive loadings<br />
Figure 3.22. Repetitive biosorption of Pb 2+ , Cd 2+ , and Ni 2+ by Porphyridium cruentum<br />
(10.0 mL solution of 10.0 mg/L metal ion concentration, solution pH of 6.0,<br />
sorption time of 30 min., and successive loadings)<br />
Sorption (%)<br />
100.0<br />
80.0<br />
60.0<br />
40.0<br />
20.0<br />
0.0<br />
1 2 3<br />
successive loadings<br />
4 5<br />
Figure 3.23. Repetitive biosorption of Pb 2+ , Cd 2+ , and Ni 2+ by Scenedesmus protuberans<br />
(10.0 mL solution of 10.0 mg/L metal ion concentration, solution pH of 6.0,<br />
sorption time of 30 min., and successive loadings)<br />
Pb<br />
Cd<br />
Ni<br />
Pb<br />
Cd<br />
Ni<br />
54
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