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Oyster Shell Powder, Zeolite and Red Mud as Binders for Immobilising Toxic Metals in Fine Granular Contaminated Soils (from Industrial Zones in South Korea)

Author

Listed:
  • Cecilia Torres-Quiroz

    (Department of Civil and Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea)

  • Janith Dissanayake

    (Department of Civil and Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea)

  • Junboum Park

    (Department of Civil and Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
    Institute of Construction and Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea)

Abstract

Low-cost absorbent materials have elicited the attention of researchers as binders for the stabilisation/solidification technique. As, there is a no comprehensive study, the authors of this paper investigated the performance of Oyster shell powder (OS), zeolite (Z), and red mud (RM) in stabilising heavy metals in three types of heavy metal-contaminated soils by using toxicity characteristic leaching procedure (TCLP). Samples were collected from surroundings of an abandoned metal mine site and from military service zone. Furthermore, a Pb-contaminated soil was artificially prepared to evaluate each binder (100× regulatory level for Pb). OS bound approximately 82% of Pb and 78% of Cu in real cases scenario. While Z was highly effective in stabilizing Pb in highly polluted artificial soil (>50% of Pb) at lower dosages than OS and RM, it was not effective in stabilising those metals in the soils obtained from the contaminated sites. RM did not perform consistently stabilising toxic metals in soils from contaminated sites, but it demonstrated a remarkable Pb-immobilisation under dosages over than 5% in the artificial soil. Further, authors observed that OS removal efficiency reached up to 94% after 10 days. The results suggest that OS is the best low-cost adsorbent material to stabilize soils contaminated with toxic metals considered in the study.

Suggested Citation

  • Cecilia Torres-Quiroz & Janith Dissanayake & Junboum Park, 2021. "Oyster Shell Powder, Zeolite and Red Mud as Binders for Immobilising Toxic Metals in Fine Granular Contaminated Soils (from Industrial Zones in South Korea)," IJERPH, MDPI, vol. 18(5), pages 1-14, March.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:5:p:2530-:d:510142
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    References listed on IDEAS

    as
    1. Yulong Cui & Jiannan Chen & Yibo Zhang & Daoping Peng & Tao Huang & Chunwei Sun, 2019. "pH-Dependent Leaching Characteristics of Major and Toxic Elements from Red Mud," IJERPH, MDPI, vol. 16(11), pages 1-16, June.
    2. Thamyres H. Silva & Joana Mesquita-Guimarães & Bruno Henriques & Filipe S. Silva & Márcio C. Fredel, 2019. "The Potential Use of Oyster Shell Waste in New Value-Added By-Product," Resources, MDPI, vol. 8(1), pages 1-15, January.
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    Cited by:

    1. Deok Hyun Moon & Jinsung An & Sang Hyeop Park & Agamemnon Koutsospyros, 2023. "Remediation of Heavy Metal (Cu, Pb) Contaminated Fine Soil Using Stabilization with Limestone and Livestock Bone Powder," Sustainability, MDPI, vol. 15(14), pages 1-15, July.

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