Savanna Journal of Basic and Applied Sciences 2(1):90-95
Effect of Factors Variation on the Adsorption of Cd2+ on Chemically Modified Agricultural Waste
Musah, M., 1Elele, U. U., 1Umar, M. T. and 2Umar, A.
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
