A Preliminary study of removal of some heavy metals from aqueous medium by a mesoporous hydroxysodalite zeolite prepared from basalt rich in calc-plagioclaseby alkali activation

Hiba,H, Amayreh ,Reem,N, Dabaibeh ,Muayad Esaifan ,Rima Alomari ,Mohammed Khair Hourani ,Hani Khoury

doi:10.7176/cmr/12-7-09

Abstract

This work presents an exploration of the use of hydroxysodalite zeolite prepared from basalt rich in calc-plagioclaseby alkali activation for removal of some heavy metals from aqueous medium. The preliminary results of batch and column experiments indicated a quantitative and fast removal of the three investigated ions, Cu 2+ , Pb 2+ and Zn 2+ from aqueous solutions. The data from the batch experiments and the column experiments jointly support the notion that hydroxysodalite zeolite prepared from basalt rich in calc-plagioclase is an efficient adsorbent for the investigated heavy metals. Almost quantitative removal of the ions was achieved within a period of 15 min of exposure of the solution to the adsorbent in batch experiments and through passing a small column filled with the adsorbent. The highest removal efficiency by the zeolite prepared from basalt rich in calc-plagioclase of the three tested heavy metal Cu 2+ , Pb 2+ and Zn 2+ were 99.98% ,99.76% and 99.93 % respectively. Keywords: hydroxysodalite zeolite, basalt utilization, heavy ions removal, pollution remediation DOI: 10.7176/CMR/12-7-09 Publication date: November 30 th 2020

Highlights

The adverse effects of accumulation of heavy metals in the environment as a result of increasing industrial and domestic applications presents a global environmental and public health threat [1,2,3]
The quest for inexpensive, abundant, environmental friendly sorbents is a hot area in environmental and chemical research. [4,5,6] In this study, a hydroxysodalite (H-SOD)zeolite was prepared in our laboratory from locally abundant Jordanian basalt powder rich in calc-plagioclase by alkali-activation method
As Esaifan et al, mentioned in their paper [7] the prepared Hydroxysodalite (H-SOD) microcrystalline particles were synthesized from basalt powder rich in calcicplagioclase by alkali activation at 80 oC/24 h

Summary

Introduction

The adverse effects of accumulation of heavy metals in the environment as a result of increasing industrial and domestic applications presents a global environmental and public health threat [1,2,3]. Heavy metals which originate from industrial activities and the overuse of agricultural fertilizers are considered as the most hazardous ground water pollutants. [4,5,6] In this study, a hydroxysodalite (H-SOD)zeolite was prepared in our laboratory from locally abundant Jordanian basalt powder rich in calc-plagioclase by alkali-activation method. This method is an inexpensive and green methodology for preparation of inorganic polymers [7]. As Esaifan et al, mentioned in their paper [7] the prepared Hydroxysodalite (H-SOD) microcrystalline particles were synthesized from basalt powder rich in calcicplagioclase (anorthite) by alkali activation at 80 oC/24 h. The chemical, mineralogical, and textural properties were obtained by using X-ray powder diffractometry (XRD), Fourier transform infrared spectroscopy (FTIR) fig 1( a,b) ,scanning electron microscopy (SEM) thermogravimetric analysis (TGA), and N2-adsorption-desorption measurements fig 2 (a ,b ,c) [7]

Objectives

Methods

Results