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author：

Liu, Q. (Liu, Q..) [1] | Bian, Y. (Bian, Y..) [2] | Xu, T. (Xu, T..) [3] | Yue, T. (Yue, T..) [4] | Cao, X. (Cao, X..) [5] | Bai, S. (Bai, S..) [6] | Lin, H. (Lin, H..) [7] | Liu, L. (Liu, L..) [8]

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Abstract：

To　evaluate　the　potential　for　practical　application　of　biochar　derived　from　bagasse　and　polymeric　ferric　sulfate　(BPFSB),　its　capabilities　and　mechanisms　for　the　removal　of　sulfamethoxazole　(SMX)　and　norfloxacin　(NOR)　were　explored.　The　optimized　conditions　were　as　follows:　pH=2,　dosage　of　0.5　g　L−1　(SMX);　pH=6,　dosage　of　0.5　g　L−1　(NOR).　The　maximum　removal　capacities　of　SMX　were　266.8　(298　K),　265.9　(308　K)　and　258.7　mg　g−1　(318　K),　while　those　of　NOR　were　197.7　(　298　K),　198.8　(308　K)　and　211.6　mg　g−1　(318　K),　respectively.　Their　spontaneous　removals　were　dominated　by　multilayer　surface　chemisorption.　However,　the　removal　of　SMX　was　exothermic　(ΔH=-12.27　kJ　mol−1)　while　the　removal　of　NOR　was　endothermic　(ΔH=13.84　kJ　mol−1).　Their　removals　followed　pseudo-second-order　kinetic　model　better,　and　liquid　film　diffusion　was　the　primary　rate-controlling　step.　The　electrostatic　interactions,　H-bonding,　complexation　and　π-π　interactions　were　the　main　pathways　of　their　chemisorption,　while　their　degradation　also　contributed　significantly　to　their　removals.　After　five　regenerations,　the　BPFSB　was　still　effective　in　removing　SMX　(＞85%),　suggesting　that　it　was　more　suitable　for　SMX　removal　in　practice.　©　2024　Institution　of　Chemical　Engineers

Keyword：

Adsorption Degradation Iron-loaded biochar Norfloxacin Sulfamethoxazole

Community：

  • [ 1 ] [Liu Q.]College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, China
  • [ 2 ] [Bian Y.]College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, China
  • [ 3 ] [Xu T.]College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, China
  • [ 4 ] [Yue T.]College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, China
  • [ 5 ] [Cao X.]College of Civil Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 6 ] [Bai S.]College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, China
  • [ 7 ] [Bai S.]Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, 541004, China
  • [ 8 ] [Bai S.]Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin, 541004, China
  • [ 9 ] [Lin H.]College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, China
  • [ 10 ] [Lin H.]Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, 541004, China
  • [ 11 ] [Lin H.]Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin, 541004, China
  • [ 12 ] [Liu L.]College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, China
  • [ 13 ] [Liu L.]Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, 541004, China
  • [ 14 ] [Liu L.]Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin, 541004, China

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Source ：

Chemical Engineering Research and Design

ISSN： 0263-8762

Year： 2024

Volume： 204

Page： 400-409

3 . 7 0 0

JCR@2023

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 3

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