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author:

Yu, F. (Yu, F..) [1] | Yu, Z. (Yu, Z..) [2] | Huang, X. (Huang, X..) [3] | Gu, A. (Gu, A..) [4] | Du, J. (Du, J..) [5] | Xie, S. (Xie, S..) [6] | Liu, R. (Liu, R..) [7] | Zou, D. (Zou, D..) [8] | Fang, S. (Fang, S..) [9] | Xie, M. (Xie, M..) [10] | Lin, J. (Lin, J..) [11] | Ye, W. (Ye, W..) [12]

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Scopus

Abstract:

The formidable challenge of membrane fouling and wetting, spurred by the elevated concentration of pollutants in the landfill leachate concentrate during membrane distillation, necessitates substantial costs on membrane cleaning for retaining high separation efficiency. Herein, a durable superhydrophobic poly(vinylidene fluoride) (PVDF) membrane constructed by spray-coating of fluorinated SiO2 nanoparticles was proposed to treat landfill leachate concentrate via membrane distillation. The influence of operational parameters, including transmembrane temperature difference, feed flow rate, and feed salinity, on the membrane distillation performance was explored. Specifically, the increased transmembrane temperature difference and feed flow rate had a strongly positive dependence on the permeation flux during membrane distillation. The superhydrophobic PVDF membrane showed impressive antiwetting and antifouling properties, as indicated by consistently stable superhydrophobicity, obtaining an extremely high rejection of salts and humic substances (>99.99%) over an 8 h membrane distillation for treating landfill leachate concentrate. Furthermore, the tested superhydrophobic PVDF membrane yielded a complete solute removal, resulting in high-quality freshwater production with a 90.13% pure water recovery from landfill leachate concentrate during a 50 h membrane distillation-based concentration procedure with a concentration factor of 10.13. These results manifested the superhydrophobic PVDF membrane as a promising avenue for pure water production from complex waste streams via membrane distillation. © 2024 American Chemical Society.

Keyword:

concentration desalination and purification direct contact membrane distillation landfill leachate concentrate superhydrophobic PVDF membrane

Community:

  • [ 1 ] [Yu F.]College of Environment and Safety Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 2 ] [Yu Z.]College of Environment and Safety Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 3 ] [Huang X.]Jiangsu DDBS Environmental Remediation Co., Ltd., Nanjing, 210012, China
  • [ 4 ] [Gu A.]Jiangsu DDBS Environmental Remediation Co., Ltd., Nanjing, 210012, China
  • [ 5 ] [Du J.]Department of Chemical Engineering, Process Engineering for Sustainable Systems (ProcESS), Leuven, B-3001, Belgium
  • [ 6 ] [Xie S.]College of Environment and Safety Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 7 ] [Liu R.]Department of Chemical Engineering, Process Engineering for Sustainable Systems (ProcESS), Leuven, B-3001, Belgium
  • [ 8 ] [Zou D.]School of Environmental Science and Engineering, Nanjing Tech University, Nanjing, 211816, China
  • [ 9 ] [Fang S.]College of Environment and Safety Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 10 ] [Xie M.]Department of Chemical Engineering, University of Bath, Bath, BA2 7AY, United Kingdom
  • [ 11 ] [Lin J.]Key Laboratory of Rare Earths, Chinese Academy of Sciences, Ganzhou, 341000, China
  • [ 12 ] [Lin J.]Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, China
  • [ 13 ] [Ye W.]Jiangxi Provincial Key Laboratory of Water Ecological Conservation at Headwater Regions, Jiangxi University of Science and Technology, 1958 Ke-jia Road, Ganzhou, 341000, China

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Source :

ACS ES and T Water

ISSN: 2690-0637

Year: 2024

Issue: 4

Volume: 4

Page: 1711-1719

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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