2023

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Browsing 2023 by Author "GHAZALA YASEEN"

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    Removal of fluoride by using biochar; a step toward sustainable environmental remediation
    (UMT, Lhr, 2023) GHAZALA YASEEN
    The thermochemical conversion of agricultural waste to biochar opens up new possibilities for environmentally sustainable waste management. Biochar is widely applicable in the field of waste-water treatment because of utilizing a variety of physical and chemical activation methods to change its structural and physicochemical properties to fit the ultimate use. The main purpose to conduct this study was to remove the fluoride ion by using banana and grapefruit peels biochar. Biochar was chemically treated with ZnCl2 and sodium dodecyl sulfate. Ion selectiveelectrode was used for quantitative study the batch wise adsorption of fluoride optimizing by different parameters such as; time contact, adsorbent dosage, pH, anion concentration as well as temperature. Different isothermal, kinetic and thermodymics models were studied in order to investigate the adsorption behavior of biochar. Biochar was characterized by Scanning electron microscope (SEM) for surface morphology, FT-IR for functional groups and Thermogravimetric Analysis (TGA) for the thermal stability. Carbon, Hydrogen, nitrogen and Sulfur was used to scrutinize the elemental conformation of biochar obtained from agricultural waste. The results showed that biochar prepared from banana and grapefruit peels are considered among eco-friendly and inexpensive adsorbents to eliminate fluoride ion from the aqueous medium.