Optimization of the Preparation Conditions for Activated Carbon from Locust Bean Pod (Parkia biglobosa) Using Factorial Design Approach
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Date
2018
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Abstract
This study focused on the optimization of the preparation parameters
(impregnation concentration, activation temperature and activation time) on
the yield and adsorption potential of activated carbon (AC) prepared from
Locust bean pod (Parkia biglobosa) using the chemical activation method
based on factorial design. The two linear regression models developed from
the factorial experimental design using Design Expert Software – 6.0.8 was
used to determine the optimum production conditions required to provide a
compromise between the AC yield and methylene blue (MB) removal
efficiency from aqueous solution. The results demonstrated maximum AC
yield of 41.6% and MB removal efficiency of 95.4% under the following
optimum preparation conditions; H3PO4 impregnation concentration (60 %),
activation temperature (444.4 oC) and activation time (30 min). This study
showed that the experimental values obtained were in good agreement with
the values predicted from the models under the applied conditions.
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Keywords
Waste management, Locust bean pod, activated carbon, factorial design, chemical activation, yield