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 13

Effect of adsorbent dosage on adsorption of lead (II), Cr (III), and Cd (II); initial concentrations: 50 mg/L; time: 60 min; solution: pH 5; and temperature: 25°C.