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Using Agricultural Mixed Waste as a Sustainable Technique for Removing Stable Isotopes and Radioisotopes from the Aquatic Environment

Author

Listed:
  • Arwa A. Abdelhamid

    (Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City 11884, Cairo, Egypt)

  • Mogeda H. Badr

    (Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City 11884, Cairo, Egypt)

  • Ramadan A. Mohamed

    (Central Laboratory for Elemental and Isotopic Analysis-Nuclear Research Center, Egyptian Atomic Energy Authority, Nasr City 11787, Cairo, Egypt
    Ion Sources and Accelerators Department, Nuclear Research Center, Egyptian Atomic Energy Authority, Nasr City 11787, Cairo, Egypt)

  • Hosam M. Saleh

    (Radioisotope Department, Nuclear Research Center, Egyptian Atomic Energy Authority, Nasr City 11787, Cairo, Egypt)

Abstract

In the current study, dried ground mixed waste of olive waste and water hyacinth was subjected to the treatment of wastewater contaminated with stable or radioactive cobalt and cesium. Contact time, temperature, amount of adsorbent, metal ion concentration and pH-value were evaluated as the most potent factors that affect the adsorption process. Concentrations of Co and Cs ions before and after treatment are measured using ICP-OES technique. Moreover, kinetic and equilibrium isotherm parameters were investigated by explaining the equilibrium data by induction of two isotherms, “Langmuir” and “Freundlich”. Experimental results indicated that more than 85% of 60 Co and 134 Cs were efficiently removed from spiked wastewater after one hour of contact time by using 0.2 g of dried mixed waste. The optimal time to remove Cs + and Co 2+ was 50 and 90 min, respectively. The kinetic study showed that the adsorption of Cs + and Co 2+ were better suited to the second order. The most favorable pH value was at a range of 6–7 for Cs + and 5–6 for Co 2+ . R 2 values were higher at the Freundlich isotherm, indicating that the adsorption process was taking place according to Freundlich isotherm at all temperatures for Co 2+ and Cs + ions.

Suggested Citation

  • Arwa A. Abdelhamid & Mogeda H. Badr & Ramadan A. Mohamed & Hosam M. Saleh, 2023. "Using Agricultural Mixed Waste as a Sustainable Technique for Removing Stable Isotopes and Radioisotopes from the Aquatic Environment," Sustainability, MDPI, vol. 15(2), pages 1-16, January.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:2:p:1600-:d:1035244
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    Cited by:

    1. Hosam M. Saleh & Amal I. Hassan, 2023. "Synthesis and Characterization of Nanomaterials for Application in Cost-Effective Electrochemical Devices," Sustainability, MDPI, vol. 15(14), pages 1-52, July.

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