Yellow Mombin (Spondias mombin L.) Seeds from Agro-Industrial Waste as a Novel Adsorbent for Removal of Hexavalent Chromium from Aqueous Solutions

The objective of this study was to develop a low-cost and eco-friendly adsorbent from agro-industrial waste for the removal hexavalent chromium in aqueous medium. (BMC) produced yellow mombin (Spondias L.) seeds characterized by determination chemical composition, thermal analysis (thermogravimetric (TG) differential (DTA)), Fourier transform infrared spectroscopy (FTIR), pH suspension point zero charge (PZC). presence proteins, fats carbohydrates (15.690, 1.004, 73.706%, respectively) suggests that material can be promising adsorbent, given availability functional groups. following conditions were set: 2.0, mass 450 mg, equilibrium reached after 80 min. maximum adsorption capacity approximately 98%. Kinetic studies showed pseudo-second-order kinetic equation one best adjusted experimental data. Under investigated, Langmuir isotherm model described balance data, signaling monolayer. According results, it found BMC an outstanding performance CrVI ions may become viable efficient alternative treatment industrial effluents containing trace elements.