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Biosorption of Uranyl Ions from Aqueous Solution by Parachlorella sp. AA1

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  • Ja-Young Yoon

    (Geologic Environment Research Division, Korea Institute of Geoscience and Mineral Resources (KIGAM), Daejeon 34132, Korea
    Department of Bio Environmental Chemistry, Chungnam National University, Daejeon 34134, Korea
    The two authors (Ja-Young Yoon and In-Hyun Nam) contributed equally to this work.)

  • In-Hyun Nam

    (Geologic Environment Research Division, Korea Institute of Geoscience and Mineral Resources (KIGAM), Daejeon 34132, Korea
    Department of Bio Environmental Chemistry, Chungnam National University, Daejeon 34134, Korea
    The two authors (Ja-Young Yoon and In-Hyun Nam) contributed equally to this work.)

  • Min-Ho Yoon

    (Department of Bio Environmental Chemistry, Chungnam National University, Daejeon 34134, Korea)

Abstract

In the present study we investigated the ability of the microalgal strain Parachlorella sp. AA1 to biologically uptake a radionuclide waste material. Batch experiments were conducted to investigate the biosorption of uranyl ions (U(VI)) in the 0.5–50.0 mg/L concentration range by strain AA1. The results showed that AA1 biomass could uptake U(VI). The highest removal efficiency and biosorption capacity (95.6%) occurred within 60 h at an initial U(VI) concentration of 20 mg/L. The optimum pH for biosorption was 9.0 at a temperature of 25 °C. X-ray absorption near edge structure analysis confirmed the presence of U(VI) in pellets of Parachlorella sp. AA1 cells. The biosorption methods investigated here may be useful in the treatment and disposal of nuclides and heavy metals in diverse wastewaters.

Suggested Citation

  • Ja-Young Yoon & In-Hyun Nam & Min-Ho Yoon, 2021. "Biosorption of Uranyl Ions from Aqueous Solution by Parachlorella sp. AA1," IJERPH, MDPI, vol. 18(7), pages 1-9, March.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:7:p:3641-:d:527626
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    References listed on IDEAS

    as
    1. Yohey Suzuki & Shelly D. Kelly & Kenneth M. Kemner & Jillian F. Banfield, 2002. "Nanometre-size products of uranium bioreduction," Nature, Nature, vol. 419(6903), pages 134-134, September.
    2. Yifan Gao & Jia Feng & Junping Lv & Qi Liu & Fangru Nan & Xudong Liu & Shulian Xie, 2019. "Physiological Changes of Parachlorella Kessleri TY02 in Lipid Accumulation under Nitrogen Stress," IJERPH, MDPI, vol. 16(7), pages 1-17, April.
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