Aubergine-based Biosorbents for Heavy Metal Extraction

Abstract

In this research, a new alternative inexpensive and eco-friendly Aubergine (Eggplant) stems-based biosorbents having produced to remove Cu2+, Ni2+, and Co2+ heavy metal ions from the solution. Moreover, how the corn starch and oil contents affect physical properties like density, heavy metal extraction performance, water intake, and solubility had been determined. Flame atomic absorption spectroscopy (FAAS) having used the determination of biosorbents extraction performance. The density of the biosorbents had determined according to ASTM D 792 standards. As a result, the untreated eggplant stalk-based biosorbent adsorbed 5.36 mg Co2+ ions, and 4.99 mg of Ni2+ ions. Also, 4.84 mg of Cu2+ ions were extracted from 25 ml 7 ppm of heavy metal ions solutions for 30 minutes, at room temperature with 175 rpm agitation speed by Eggplant-based biosorbents.