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
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, Cu2+, Pb2+ and Zn2+ 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 Cu2+, Pb2+ and Zn2+ 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 30th 2020
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ISSN (Paper)2224-3224 ISSN (Online)2225-0956
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