Extraction of Platinum Group Metals from Metallurgical Plant Effluent Using Bioadsorbents

PlatinumPlatinum Group Metals (PGMs) comprising platinumPlatinum, palladiumPalladium, and rhodium are rare and they are naturally occurring precious metals. They are often used in electronic components and cell phones as capacitorsCapacitor, and catalytic converters found in fuel-consuming vehicles typically contain platinumPlatinum additives to help treat exhaust fumes. In this research, platinumPlatinum and palladiumPalladium were extracted from gold plant effluentEffluent solution by adsorptionAdsorption using biobased materials. Data analysis revealed that 97.4% platinumPlatinum and 99.8% palladiumPalladium were extracted with modified bioadsorbents and the adsorptionAdsorption rate of PGMsPGM progressed via the pseudo-second-order rate model. AdsorptionAdsorption isotherm model studies indicated that the adsorptionAdsorption of platinumPlatinum and palladiumPalladium followed the Freundlich and Langmuir adsorptionAdsorption isotherm, respectively.