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 />
Sorption (%)<br />
Sorption (%)<br />
100.0<br />
80.0<br />
60.0<br />
40.0<br />
20.0<br />
Dunaliella<br />
Oocystis<br />
Porphyridium<br />
Scenedesmus<br />
0.0<br />
2.0 4.0 6.0<br />
pH<br />
8.0 10.0 12.0<br />
100.0<br />
80.0<br />
60.0<br />
40.0<br />
20.0<br />
Dunaliella<br />
Oocystis<br />
Porphyridium<br />
0.0<br />
2.0 4.0 6.0<br />
pH<br />
8.0<br />
Scenedesmus<br />
10.0 12.0<br />
100.0<br />
80.0<br />
60.0<br />
40.0<br />
20.0<br />
Scenedesmus<br />
0.0<br />
2.0 4.0 6.0 8.0 10.0 12.0<br />
pH<br />
Dunaliella<br />
Oocystis<br />
Porphyridium<br />
Figure 3.7. Effect of solution pH on the biosorption of (a) Pb 2+ , (b) Cd 2+ , and (c) Ni 2+<br />
(10.0 mg of biosorbent, 10.0 mL metal ion solution of 10.0 mg/L<br />
concentration, sorption time of 60 min)<br />
(a)<br />
(b)<br />
(c)<br />
41