IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v14y2022i20p13647-d949439.html
   My bibliography  Save this article

Historical Lead Smelting Slag Harmlessness and Valuable Metals Recovery: A Co-Treatment of Lead Slag and Zinc-Bearing Material in Rotary Kiln

Author

Listed:
  • Xuekui Niu

    (Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
    State key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China)

  • Minting Li

    (State key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China)

  • Hongbin Wang

    (Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China)

  • Liping Ma

    (Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China)

  • Shuting Wang

    (Yunnan Research Academy of Eco-Environmental Sciences, Kunming 650091, China)

  • Tao Zhou

    (Yunnan Research Academy of Eco-Environmental Sciences, Kunming 650091, China)

  • Wei Wang

    (Yunnan Research Academy of Eco-Environmental Sciences, Kunming 650091, China)

Abstract

The harmless treatment of historical lead smelting slag (LSS) is of significance to ecological and environmental protection, but it is still challenging in terms of the economic feasibility of alone processing due to the low content of valuable metals. Here, we performed an industrialized test with a co-treatment of LSS and zinc oxide ore in a rotary kiln to evaluate the economic feasibility and solidification effect of harmful elements. The results revealed that more than 70% of Zn and Pb were recovered from LSS in the form of dust, while the nonvolatile part of Pb, Zn, and Cd were solidified in gangue as complex silicate phases. The nonvolatile part of As came into being Fe-As intermetallic compound which was encapsulated by gangue particles or was solidified in silicate phases. The entirely enclosed structure of water-quenched slag plays an important role in the stability of slag. The TCLP and SNAL leaching tests demonstrated the high stability of water-quenched slag. A zinc oxide ore addition of 20% was recommended for energy consumption and processing capacity. Our findings highlight that the valuable metals not only can be effectively recovered but also harmful elements are solidified in gangue, providing an economical and feasible technical route for the treatment of historical LSS.

Suggested Citation

  • Xuekui Niu & Minting Li & Hongbin Wang & Liping Ma & Shuting Wang & Tao Zhou & Wei Wang, 2022. "Historical Lead Smelting Slag Harmlessness and Valuable Metals Recovery: A Co-Treatment of Lead Slag and Zinc-Bearing Material in Rotary Kiln," Sustainability, MDPI, vol. 14(20), pages 1-16, October.
  • Handle: RePEc:gam:jsusta:v:14:y:2022:i:20:p:13647-:d:949439
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/14/20/13647/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/2071-1050/14/20/13647/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Liwei Yao & Degang Liu & Yong Ke & Yuancheng Li & Zhongbing Wang & Jiangchi Fei & Hui Xu & Xiaobo Min, 2020. "Synthesis and Hydration Characteristic of Geopolymer Based on Lead Smelting Slag," IJERPH, MDPI, vol. 17(8), pages 1-12, April.
    2. E. O. Farombi & O. A. Adelowo & Y. R. Ajimoko, 2007. "Biomarkers of Oxidative Stress and Heavy Metal Levels as Indicators of Environmental Pollution in African Cat Fish ( Clarias gariepinus ) from Nigeria Ogun River," IJERPH, MDPI, vol. 4(2), pages 1-8, June.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Débora M. S. Santos & Mércia Regina S. Melo & Denise Carla S. Mendes & Iolanda Karoline B. S. Rocha & Jakeline Priscila L. Silva & Sildiane M. Cantanhêde & Paulo C. Meletti, 2014. "Histological Changes in Gills of Two Fish Species as Indicators of Water Quality in Jansen Lagoon (São Luís, Maranhão State, Brazil)," IJERPH, MDPI, vol. 11(12), pages 1-11, December.
    2. Athanasia K. Tolkou & Dimitra K. Toubanaki & George Z. Kyzas, 2023. "Detection of Arsenic, Chromium, Cadmium, Lead, and Mercury in Fish: Effects on the Sustainable and Healthy Development of Aquatic Life and Human Consumers," Sustainability, MDPI, vol. 15(23), pages 1-17, November.
    3. Elica Valkova & Vasil Atanasov & Milena Tzanova & Stefka Atanassova & Ivaylo Sirakov & Katya Velichkova & Margarita H. Marinova & Kristian Yakimov, 2022. "Content of Pb and Zn in Sediments and Hydrobionts as Ecological Markers for Pollution Assessment of Freshwater Objects in Bulgaria—A Review," IJERPH, MDPI, vol. 19(15), pages 1-25, August.
    4. Zeen Yu & Lei Wang & Qi Zheng & Xiaokui Che & Xinglan Cui & Shenyu Wei & Hongxia Li & Xinyue Shi, 2023. "Present Situation and Research Progress of Comprehensive Utilization of Antimony Tailings and Smelting Slag," Sustainability, MDPI, vol. 15(18), pages 1-17, September.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:14:y:2022:i:20:p:13647-:d:949439. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.