Research Article

Removal of Cadmium (II), Chromium (III), and Lead (II) Heavy Metal Ions from Water by Graft Copolymerization of Acrylonitrile onto Date Palm Fiber Using H2O2/Fe++ as an Initiator

Figure 12

Effect of contact time on (a) lead (II), (b) Cr (III), and (c) Cd (II) adsorption at different initial feed concentration; solution: pH 5; and temperature: 25°C.
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(b)
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