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A Novel Adsorbent of Attapulgite & Carbon Composites Derived from Spent Bleaching Earth for Synergistic Removal of Copper and Tetracycline in Water

Author

Listed:
  • Yuxin Ke

    (College of Urban and Environmental Science, Northwest University, Xi’an 710127, China
    Shaanxi Key Laboratory of Earth Surface System and Environment Carrying Capacity, Northwest University, Xi’an 710127, China)

  • Xiaoli Zhu

    (College of Urban and Environmental Science, Northwest University, Xi’an 710127, China
    Shaanxi Key Laboratory of Earth Surface System and Environment Carrying Capacity, Northwest University, Xi’an 710127, China)

  • Shaocheng Si

    (College of Urban and Environmental Science, Northwest University, Xi’an 710127, China
    Shaanxi Key Laboratory of Earth Surface System and Environment Carrying Capacity, Northwest University, Xi’an 710127, China)

  • Ting Zhang

    (College of Urban and Environmental Science, Northwest University, Xi’an 710127, China
    Shaanxi Key Laboratory of Earth Surface System and Environment Carrying Capacity, Northwest University, Xi’an 710127, China)

  • Junqiang Wang

    (College of Urban and Environmental Science, Northwest University, Xi’an 710127, China
    Xi’an Jinborui Ecological Tech. Co., Ltd., Xi’an 710065, China)

  • Ziye Zhang

    (Xi’an Jinborui Ecological Tech. Co., Ltd., Xi’an 710065, China)

Abstract

Simultaneously eliminating tetracycline (TC) and copper (Cu-II) from wastewater was investigated by applying a novel adsorbent fabricated by transforming spent bleaching earth (SBE) into attapulgite & carbon composites (A&Cs). Pyrolysis temperature for A&Cs preparation exhibited a positive effect on Cu(II) adsorption, while the AC500 possessed the greatest performance for TC remediation. Interestingly, a synergistic effect instead of competitive adsorption occurred between Cu(II) and TC under the combined binary system, as both TC and Cu(II) adsorption amount on A&C500 increased more than that in the single system, which could be mainly attributed to the bridge actions between the TC and Cu(II). In addition, hydrogen bonding, ᴨ-ᴨ EDA interaction, pore-filling and complexation exerted significant roles in the adsorption process of TC and Cu(II). In general, this study offered a new perspective on the regeneration of livestock and poultry industry wastewater polluted with antibiotics and heavy metals.

Suggested Citation

  • Yuxin Ke & Xiaoli Zhu & Shaocheng Si & Ting Zhang & Junqiang Wang & Ziye Zhang, 2023. "A Novel Adsorbent of Attapulgite & Carbon Composites Derived from Spent Bleaching Earth for Synergistic Removal of Copper and Tetracycline in Water," IJERPH, MDPI, vol. 20(2), pages 1-15, January.
    • Handle: RePEc:gam:jijerp:v:20:y:2023:i:2:p:1573-:d:1036573
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