Adsorptive Removal of Some Heavy Metals from Produced Water Using Agricultural Waste
DOI:
https://doi.org/10.59743/jbs.v38i3.336Abstract
This thesis aims to investigate the effectiveness of agricultural waste—specifically, powdered Sea Straw plant and activated carbon—in removing heavy metal ions (Ni+2, Cr+2) from produced water associated with oil production. The research seeks to characterize the adsorbent materials, optimize the adsorption conditions, and evaluate the efficiency of these materials in pollutant removal.The results showed that Sea Straw powder is an effective adsorbent for heavy metals. The study concluded that physical treatment of carbon improved its adsorption capacity. Increasing the temperature from 20°C to 50°C enhanced adsorption efficiency. Thermodynamic parameters (ΔG, ΔH, ΔS) indicated that the adsorption process was physical and non-spontaneous, involving random aggregation on the surface. Moreover, increasing the pH of the metal solutions up to 7 increased adsorption efficiency, after which it stabilized due to chemical precipitation. Finally, increasing contact time and shaking speed improved adsorption due to increased collisions between metal ions and activated carbon, enhancing overall adsorption performance.
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