Abstract

Iqbal Khalaf Erabee^1,2

DOI : http://dx.doi.org/10.13005/ojc/340254

Highly porosity characterized activated carbon (AC) was achieved using agricultural waste as raw material used as adsorbent to treat wastewater through removal of ammonia nitrogen (NH-N) and hexavalent chromium (Cr (VI). The preparation method of AC included using zinc chloride as activation agent. Characterizations of the porosities of AC preparations were performed using N₂ adsorption-desorption to ascertain surface area and pore volume. Existing groups on the AC surfaces were resolved using Fourier Transform Infrared Spectroscopy (FTIR) analyses. Scanning electron microscopic (SEM) was used to asses AC morphologies. Maximal surface areas of AC preparations were discovered to be 1190.41 m²/g at activation temperatures of 700^oC. Adsorption isotherm was analyzed using two models Langmuir and Freundlich. The kinetic study was represented through Pseudo first order and pseudo second order.

Activated Carbon; Agricultural Waste; Adsorption; Wastewater

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