ABSTRACT
The effects of variation of time, adsorbent dosage, concentration and solution pH on the adsorption of Cd2+ from aqueous solution
were determined using standard methods of analysis. Results indicate that 83.49 % of Cd2+ was adsorbed after 30 minutes
interaction time and 0.2 g adsorbent dosage with concentration and pH kept at 10 mg/dm3
and 4 respectively; 92.11 % Cd2+ was
removed from solution when adsorbent dosage was increased to 1.0 g while time, concentration and pH remained unchanged. The
effect of adsorbent dosage on adsorption of Cd2+ positive and high (7.438) while the effects of concentration and pH were -6.622
and -4.532 respectively (negative effect). The experimental and calculated (predicted) value for each run falls closed to the straight
line with residual value of ? 2.00 indicating a good fit of the mode