Optimization of dye adsorption process for Albizia lebbeck pods as a biomass using central composite rotatable design model

Chemical Industry and Chemical Engineering Quarterly

Eisa Mohammed Y.¹  Al-Mashhadani Mahmood K.H.²  Hadi Sabah Mahdi³ 

[1] University of Baghdad, College of Al-khwarizmi Engineering, Department of Biochemical Engineering, Baghdad, Iraq;University of Baghdad, College of Engineering, Department of Chemical Engineering, Baghdad, Iraq;University of Baghdad, College of Science, Central Environmental Laboratory, Baghdad, Iraq;

关键词: Albizia;    optimization;    methyl red;    adsorption;   

DOI  :  10.2298/CICEQ180210021H

来源: DOAJ

【 摘 要 】

Albizia lebbeck biomass was used as an adsorbent material in the present study to remove methyl red dye from an aqueous solution. A central composite rotatable design model was used to predict the dye removal efficiency. The optimization was accomplished under a temperature and mixing control system (37°C) with different particle size of 300 and 600 μm. Highest adsorption efficiencies were obtained at lower dye concentrations and lower weight of adsorbent. The adsorption time, more than 48 h, was found to have a negative effect on the removal efficiency due to secondary metabolites compounds. However, the adsorption time was found to have a positive effect at high dye concentrations and high adsorbent weight. The colour removal efficiency was found to increase with the increase in methyl red concentration and decrease the adsorption time at constant adsorbent weight.

【 授权许可】

Unknown