Abstract
In this study, an alternative inexpensive and eco-friendly Aubergine (Eggplant)-based biosorbents were synthesized for removing Cu2+, Ni2+, and Co2+ heavy metal ions from the aquatic region. Moreover, how the physical properties and water treatment performance were affected by their corn starch and oil contents were investigated. Their extraction capacity was evaluated by performing Flame atomic absorption spectroscopy (FAAS). ASTM D 792 standard was complied with to calculate biosorbent density. Indeed, the untreated eggplant stalk-based biosorbent adsorbed 5.36 mg of Co2+ ions and 4.99 mg of Ni2+ ions, and 4.84 mg of Cu2+ ions from 25 mL of initial solution that contained 7.00 ppm of each ion for 30 minutes, at room temperature with 175 rpm agitation speed by Eggplant-based biosorbents.
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