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Adsorption of Fluoride onto Acid-Modified Low-Cost Pyrolusite Ore: Adsorption Characteristics and Efficiencies

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  • Phacharapol Induvesa

    (Bodhivijjalaya College, Srinakharinwirot University, Nakhon Nayok 26120, Thailand)

  • Radamanee Rattanakom

    (Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand)

  • Sornsiri Sriboonnak

    (Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand)

  • Chayakorn Pumas

    (Research Center in Bioresources for Agriculture, Industry and Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
    Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand)

  • Kritsana Duangjan

    (Science and Technology Research Institute, Chiang Mai University, Chiang Mai 50200, Thailand)

  • Pharkphum Rakruam

    (Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand)

  • Saoharit Nitayavardhana

    (Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand)

  • Prattakorn Sittisom

    (Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand)

  • Aunnop Wongrueng

    (Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand
    Research Center in Bioresources for Agriculture, Industry and Medicine, Chiang Mai University, Chiang Mai 50200, Thailand)

Abstract

Fluoride concentrations in the groundwater continue to be a major cause for concern in Thailand, particularly in the country’s north and west. The process of removing fluoride through adsorption has captured the attention of the abundance of ore in the mining industry. For the purpose of this investigation, the utilization of the adsorbent pyrolusite, which is a manganese mineral largely composed of MnO 2 , was a major component. Lab-scale experiments were conducted to investigate the efficacy of original pyrolusite ore (PA-1) and acid-modification PA (PA-2) created as low-cost adsorption materials for fluoride removal. The results of the adsorption rate in both PAs showed a fast rate of adsorption within 60 min of reaching equilibrium. According to the results of the adsorption capacity (q e ) tests, PA that had been treated with an acid solution (PA-2) had the capacity to contain more fluoride (q e = 0.58 mg/g) than the PA that had been used initially (PA-1) (q e = 0.11 mg/g). According to the findings of an isotherm, primary adsorption behavior is determined by the effect that surface components and chemical composition have on porous materials. This is the first current study that provides a comparison between pyrolusite from Thailand’s mining industry and basic modified pyrolusite regarding their ability to remove a fluoride contaminant in synthetic groundwater by an adsorption process. Such an approach will be able to be used in the future to protect the community from excessive fluoride concentrations in household and drinking water treatment technology.

Suggested Citation

  • Phacharapol Induvesa & Radamanee Rattanakom & Sornsiri Sriboonnak & Chayakorn Pumas & Kritsana Duangjan & Pharkphum Rakruam & Saoharit Nitayavardhana & Prattakorn Sittisom & Aunnop Wongrueng, 2022. "Adsorption of Fluoride onto Acid-Modified Low-Cost Pyrolusite Ore: Adsorption Characteristics and Efficiencies," IJERPH, MDPI, vol. 19(24), pages 1-13, December.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:24:p:17103-:d:1008454
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    References listed on IDEAS

    as
    1. Wei Ma & Feiqun Ya & Ren Wang & Yaqian Zhao, 2008. "Fluoride removal from drinking water by adsorption using bone char as a biosorbent," International Journal of Environmental Technology and Management, Inderscience Enterprises Ltd, vol. 9(1), pages 59-69.
    2. Benyapa Sawangjang & Phacharapol Induvesa & Aunnop Wongrueng & Chayakorn Pumas & Suraphong Wattanachira & Pharkphum Rakruam & Patiparn Punyapalakul & Satoshi Takizawa & Eakalak Khan, 2021. "Evaluation of Fluoride Adsorption Mechanism and Capacity of Different Types of Bone Char," IJERPH, MDPI, vol. 18(13), pages 1-14, June.
    3. Hui Jia & Hui Qian & Wengang Qu & Le Zheng & Wenwen Feng & Wenhao Ren, 2019. "Fluoride Occurrence and Human Health Risk in Drinking Water Wells from Southern Edge of Chinese Loess Plateau," IJERPH, MDPI, vol. 16(10), pages 1-19, May.
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