Adsorption of Mercury Using Different Types of Activated Bentonite: A Study of Sorption, Kinetics, and Isotherm Models

Muhammad Naswir, Jalius Jalius, Desfaur Natalia, Susila Arita, Yudha Gusti Wibowo

Abstract


Mercury is a hazardous element because of its toxicity and harmful effects on human health. Various traditional and low-cost methods have been developed to remove mercury from wastewater. This study used local raw material as an alternative adsorbent to treat mercury-contaminated wastewater. Activated bentonite was prepared using different chemical activators (H3PO4, HCl, and ZnCl2) in various concentrations. Then, it was dried at 200°C for an hour. The materials were characterized by SEM-EDS. Its percent removal and isotherm models were analyzed. In this study, the most effective activator was H3PO4 and the experimental data matched the Freundlich model.

 


Keywords


Activated bentonite; mercury; wastewater treatment; Chemical activators

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References


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DOI: https://doi.org/10.23955/rkl.v15i2.17784

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