Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8862926 | Sustainable Environment Research | 2018 | 33 Pages |
Abstract
The application of ethylenediaminetetraacetic acid surface functionalized Adansonia digitata seed (EAD) from Nigeria was evaluated as a possible means of treating Cu contaminated water. The seed of A. digitata (AD) and EAD were characterized using Fourier Transform Infrared spectrometer, Thermogravimetric analysis, X-ray Diffraction analysis, Scanning Electron Microscopy, Energy Dispersive Spectroscopy, Particle Size Dispersion (PSD), zeta potential and elemental analysis (CHNS/O analyzer). The kinetics studies revealed the adsorption of Cu(II) onto AD and EAD to follow pseudo-second order model which fitted well for Temkin and Freundlich isotherm. The adsorption was controlled by both intra-particle diffusion and liquid film diffusion with adsorption capacity of AD (33 mg gâ1) higher than that of EAD (27 mg gâ1). The PSD of AD and EAD was found to be mono-modal, the ÎGo values increased as the temperature increased in EAD unlike AD where the value was reduced as temperature increased. The present work showed A. digitata seed as a potential resource for treating Cu contaminated water. The present work also reveals that it is important and necessary to pretreat plant sourced materials before being used for wastewater treatment.
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Authors
Adewale Adewuyi, Fabiano Vargas Pereira,