Adsorptive Removal of Tetracyclines and Fluoroquinolones Using Yak Dung Biochar

  • Jun Wu
  • Jian LuEmail author
  • Cui Zhang
  • Zhenhua Zhang
  • Xiuyun Min


This study investigated the adsorptive removal of target fluoroquinolones and tetracyclines by biochar made by yak dung collected from the Qinghai-Tibet Plateau. Yak dung biochar pyrolyzed at 700 °C possessed surface area of 198.745 m2 g−1 and multiple functional groups. Effects of different factors including biochar dosage, pH, temperature, and initial concentration on adsorption of antibiotics were discussed. The biochar dosage of 1 g L−1 was preferable for adsorptive removal of antibiotics. Adsorption of target antibiotics did not show pH-dependent features. Adsorption capacities of fluoroquinolones and tetracyclines positively increased with temperature and initial concentration. Pseudo-second order model and the Freundlich model better fitted the experimental kinetic and isotherm data, respectively. Yak dung biochar provides a new idea on resource utilization of solid wastes and pollution control in the Qinghai-Tibet Plateau.


Yak dung biochar Adsorption Antibiotics Kinetics and isotherms 



This work was supported by National Natural Science Foundation of China (Grant Nos. 41671319 and 41877131), One Hundred Talents Program of Chinese Academy of Sciences (Grant numbers of Y610061033 and Y629041021), Thousand Talents Plan of Qinghai Province (Grant No. Y740171071), Taishan Scholar Program of Shandong Province, Two-Hundred Talents Plan of Yantai (Grant No. Y739011021), Natural Science Foundation of Qinghai Province (Grant No. 2019-ZJ-909), and Applied Basic Research Program of Qinghai Province (Grant No. 2016-ZJ-755). The authors would like to thank the reviewers for their valuable suggestions and comments on the manuscript.


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Jun Wu
    • 1
    • 2
  • Jian Lu
    • 3
    Email author
  • Cui Zhang
    • 3
  • Zhenhua Zhang
    • 4
  • Xiuyun Min
    • 1
    • 2
  1. 1.Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt LakesChinese Academy of SciencesXiningChina
  2. 2.Qinghai Provincial Key Laboratory of Geology and Environment of Salt LakesXiningChina
  3. 3.Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantaiChina
  4. 4.School of Resources and Environmental EngineeringLudong UniversityYantaiChina

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