Utilization of Prosopis Cineraria Leaf Ash in Removing Cadmium from Aqueous Solution

Document Type: Original Article

Authors

Department of Chemical Engineering, Petroleum University of Technology, Abadan, Iran

Abstract

In this study, the potential of Prosopis cineraria leaf ash (PCLA) as low-cost natural sorbent was evaluated for removing cadmium from aqueous solutions. Various operational factors such as adsorbent dosage, contact time, and solution pH were examined in batch adsorption tests. The X-ray fluorescence spectroscopy (XRF) and Fourier transform infrared spectroscopy (FTIR) analysis were employed to characterize the PCLA sample. The maximum Cd (II) removal percentage of 96% occurred at initial pH of 7.0 and a PCLA dose of 3.0 g/L. The results indicated the pseudo second-order kinetic model showed the best accordance as a kinetic model. This work revealed that PCLA can be applied as effective and cheap adsorbent for cadmium removal from wastewater. 

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