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Evaluation of Fluoride Adsorption Mechanism and Capacity of Different Types of Bone Char

Author

Listed:
  • Benyapa Sawangjang

    (International Postgraduate Program in Environmental and Hazardous Waste Management, Graduate School, Chulalongkorn University, Bangkok 10300, Thailand)

  • Phacharapol Induvesa

    (Faculty of Environment and Resource Studies, Mahidol University, Nakhon Pathom 73170, Thailand)

  • Aunnop Wongrueng

    (Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand
    Research Program in Control of Hazardous Contaminants in Raw Water Resources for Water Scarcity Resilience, Center of Excellence on Hazardous Substance Management (HSM), Bangkok 10300, Thailand
    Center of Excellence in Bioresources for Agriculture, Industry and Medicine, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand)

  • Chayakorn Pumas

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

  • Suraphong Wattanachira

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

  • Pharkphum Rakruam

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

  • Patiparn Punyapalakul

    (Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10300, Thailand)

  • Satoshi Takizawa

    (Department of Urban Engineering, Graduate School of Engineering, The University of Tokyo, Tokyo 113-8654, Japan)

  • Eakalak Khan

    (Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, NV 89154-4015, USA)

Abstract

The fluoride adsorption capacity of three types of bone char (BC), including cow BC (CBC), chicken BC (CKBC), and pig BC (PBC), was examined. At the optimum charring conditions (temperature and time), PBC had the highest hydroxyapatite (HAP) content (0.928 g-HAP/g-BC), while CBC had the highest specific surface area (103.11 m 2 /g-BC). CBC also had the maximum fluoride adsorption capacity (0.788 mg-F/g-HAP), suggesting that fluoride adsorption capacity depends more on the specific surface area of the BC than the HAP content. The adsorption data of CBC, CKBC, and PBC fit well with the pseudo-second-order model and the Langmuir isotherm. The maximum fluoride adsorption capacity of BC reached the maximum value when the solution had a pH of approximately 6.0. Lastly, the highest fluoride desorption occurred when the BCs were soaked in solutions with a pH higher than 11.0.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:13:p:6878-:d:583122
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    Citations

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    Cited by:

    1. Veera Brahmam Mukkanti & A. R. Tembhurkar, 2024. "Feasibility studies on fluoride removal by thermally treated adsorbent developed from the waste snail shells," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 26(7), pages 18069-18089, July.
    2. 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.

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