BIOSORPTION OF Pb2+, Cd2+, & Ni2+ FROM WATERS BY ...

LIST OF TABLES
Table Page
Table 1.1. Ranking of metal interest priorities ...........................................................8
Table 1.2. Major binding groups for biosorption......................................................13
Table 1.3. Gross chemical composition of human food sources and different
algae .......................................................................................................15
Table 2.1. The properties of chemicals and reagents. ...............................................25
Table 3.1. IR stretching frequencies for seaweeds and the algae used in this study... 34
Table 3.2. Elemental composition of biosorbents in terms of C, H, N, and S............36
Table 3.3. Competitive biosorption of Pb 2+ + Cd 2+ + Ni 2+ by Dunaliella salina .......51
Table 3.4. Competitive biosorption of Pb 2+ + Cd 2+ + Ni 2+ by Oocystis sp. ...............51
Table 3.5. Competitive biosorption of Pb 2+ + Cd 2+ + Ni 2+ by Porphyridium
cruentum.................................................................................................51
Table 3.6. Competitive biosorption of Pb 2+ + Cd 2+ + Ni 2+ by Scenedesmus
protuberans ............................................................................................52
Table 3.7. Biosorption data of Pb 2+ , Cd 2+ ,and Ni 2+ by both immobilized with
Na-silicate and free algae .......................................................................57
Table 3.8. Biosorption data of Pb 2+ , Cd 2+ ,and Ni 2+ by both immobilized with
agarose and free algae.............................................................................57
Table 3.9. Isotherm constants for Pb 2+ , Cd 2+ , and Ni 2+ sorption by algae..................75
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