Research Article Open Access

A COMPREHENSIVE INVESTIGATION INTO THE REMOVAL OF SO2 FROM AQUEOUS MEDIUM USING CHEMICALLY MODIFIED HIBISCUS SABDARIFFA AS A NOVEL ADSORBENT

Abstract

A green synthetic approach to synthesize HCl-treated Hibiscus sabdariffa leaf powder is used as an adsorbent to test feasibility of removing SO2 efficiency of the improved adsorbent in terms of contact duration, SO2 solution concentration and adsorbent dose. The optimized ideal conditions are 60 minutes (contact period), 1 gm (adsorbent dosage) and 20 ppm (concentration). HCl-treated Hibiscus sabdariffa leaf powder for removal of SO2 was characterized by FTIR spectroscopy.

The study assesses adsorption kinetics and isotherms in addition to the optimal circumstances of contact time, adsorbent dosage, and SO2 concentration. The outcomes show that the adsorption procedure adheres to the Temkin isotherm and the first-order kinetic model. This sheds light on the mechanism of adsorption as well as the connection between adsorbate concentration and adsorption capability. The study provides a viable approach for lowering SO2 pollution in watery environments and emphasizes the significance of using natural waste materials for environmental restoration. Overall, this study adds a thorough understanding of the potential of HCl-treated Hibiscus sabdariffa leaf powder as an efficient and long-lasting adsorbent for SO2 removal, with implications for enhanced public health and cleaner air.

G. SOWMYADEVI1, KARUNA SREE MERUGU2*, M. SUJATHAI3, NARESH KUMAR KATARI3, D. SIRISHA4

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