Evaluation of the Performance of Ethylene Di-Amine Tetra-Acetic Acid Modified Activated Carbon for Lead ion Adsorption from Palm Kernel Shell
Y. Yerima, I. Eiroboyi, W. A. Raji, Y. I. Osakue
Chemical Science International Journal · pp. 13–23 · Published 25 Jun 2021
10.9734/CSJI/2021/v30i530230Abstract
There is increasing research on the adsorption of lead because its use in industrial processes has resulted in various forms of environmental contamination and negative human health issues. Currently, researchers have intensified their search for low-cost adsorbents like activated carbon produced from nonfossil sources. This study is focused on the use of Ethylene Di-Amine Tetra-Acetic Acid for the adsorption of Lead ions. It was conducted to optimize the process variables in the production of Palm Kernel Shell Activated Carbon modified with Ethylene Di-Amine Tetra-Acetic Acid. A 23 three-level Central Composite Design was used to develop a statistical model for the optimization of the time (10-130) X1, pH (5.0 – 7.0) X2, and adsorbent dose (0.4 -5.0g)X3. Data obtained from RSM on activated carbon production were subjected to ANOVA and analyzed using a second-order polynomial equation. The extent of lead ion removal by Ethylene Di-Amine Tetra-Acetic Acid activated carbon from aqueous solution was 96.30% at the solution pH of 7.2, contact time of 70 minutes, and an adsorbent dose of 2.1g/L. The Langmuir isotherm model was in good agreement with the experimental data.
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