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Microalgae as an Effective Recovery Agent for Vanadium in Aquatic Environment

Author

Listed:
  • Hee Su Kim

    (Daegu Center, Korea Basic Science Institute (KBSI), 80 Daehak-ro, Daegu 41566, Korea)

  • Minsik Kim

    (Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Daejeon 34141, Korea)

  • Won-Kun Park

    (Department of Chemistry and Energy Engineering, Sangmyung University, 20 Hongimun 2-gil, Jongno-gu, Seoul 03016, Korea)

  • Won-Geun Yang

    (Daegu Center, Korea Basic Science Institute (KBSI), 80 Daehak-ro, Daegu 41566, Korea)

  • Manoranjan Nayak

    (Biorefinery and Bioenergy Research Laboratory, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida 201313, India)

  • Hyeon Ho Shin

    (Library of Marine Samples, Korea Institute of Ocean Science & Technology, Geoje 53201, Korea)

  • Kichul Cho

    (Department of Applied Marine Bioresource Science, National Marine Biodiversity Institute of Korea (MABIK), Seocheon-gun 33662, Korea)

  • Daekyung Kim

    (Daegu Center, Korea Basic Science Institute (KBSI), 80 Daehak-ro, Daegu 41566, Korea)

  • Tatsuya Oda

    (School of Fisheries Science & Environmental Studies, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan)

Abstract

Given that vanadium is a valuable material, the implementation of vanadium recycling processes is thus necessary to enhance the element’s value chain as well as minimize its undesirable environmental consequences. Among various remediation methods available, a biological method based on microalgal adsorption is known to be eco-friendly and calls for further investigations. Herein, we evaluated V 2 O 5 adsorption efficiencies of four different microalgal strains: Nannochloropsis oculata , Heterocapsa circularisquama , Chattonella marina , and Chattonella antiqua . Inductively coupled plasma mass spectrometry (ICP-MS) data indicated that vanadium concentration in the culture medium of Nannochloropsis oculata was reduced from 4.61 ± 0.11 mg L −1 to 1.85 ± 0.21 mg L −1 after being exposed to V 2 O 5 solution for 24 h, whereas the supernatants of the other three strains displayed no change in vanadium ion concentration. Therefore, our results indicated a strong potential of Nannochloropsis oculata for recycling vanadium with approximately 59.9% of vanadium ion removal efficiency. Furthermore, morphological observation of Nannochloropsis oculata using scanning electron microscopy (SEM) indicated that the cells were able to maintain their intact morphology even under the presence of high concentrations of heavy metals. Due to the high adsorption efficiency and robustness of Nannochloropsis oculata , the results collectively support it as a potential strain for V 2 O 5 recovery.

Suggested Citation

  • Hee Su Kim & Minsik Kim & Won-Kun Park & Won-Geun Yang & Manoranjan Nayak & Hyeon Ho Shin & Kichul Cho & Daekyung Kim & Tatsuya Oda, 2022. "Microalgae as an Effective Recovery Agent for Vanadium in Aquatic Environment," Energies, MDPI, vol. 15(12), pages 1-11, June.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:12:p:4467-:d:842518
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    References listed on IDEAS

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    1. Awasthi, Abhishek Kumar & Li, Jinhui, 2017. "An overview of the potential of eco-friendly hybrid strategy for metal recycling from WEEE," Resources, Conservation & Recycling, Elsevier, vol. 126(C), pages 228-239.
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