Cited by 143Membrane Separation TechnologiesArsenic contamination and mitigationMembrane-based Ion Separation Techniques

Experimental study of arsenic removal by direct contact membrane distillation

Open access
Qu, Dan, Wang, Jun, Hou, Deyin, Luan, Zhaokun, Fan, Bin, Zhao, Changwei·2009·Journal of Hazardous Materials

Abstract

Arsenite (As(III)) and arsenate (As(V)) removal by direct contact membrane distillation (DCMD) were investigated with self-made polyvinylidene fluoride (PVDF) membranes in the present work. Permeability and ion rejection efficiency of the membrane were tested before the arsenic removal experiments. A maximum permeate flux 20.90 kg/m(2)h was obtained, and due to the hydrophobic property, the PVDF membrane had high rejection of inorganic anions and cations which was independent of the solution pH and the temperature. The experimental results indicated that DCMD process had higher removal efficiency of arsenic than pressure-driven membrane processes, especially for high-concentration arsenic and arsenite removal. The experimental results indicated that the permeate As(III) and As(V) were under the maximum contaminant limit (10 microg/L) until the feed As(III) and As(V) achieved 40 and 2000 mg/L, respectively. The 250 h simultaneous DCMD performance of 0.5mg/L As(III) and As(V) solution was carried out, respectively. The permeate arsenic was not detected during the process which showed the PVDF membrane had stable arsenic removal efficiency. Membrane morphology changed slightly after the experiments, however, the permeability and the ion rejection of the membrane did not change.

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Crossref · 10.1016/j.jhazmat.2008.07.042

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Authors
Qu, D., Wang, J., Hou, D., Luan, Z., Fan, B., & Zhao, C.
Affiliations
Chinese Academy of Sciences (CN)
Corresponding author
Luan, Zhaokun
Venue
Journal of Hazardous Materials
Publisher
Elsevier BV
Published
2009-04
Volume
163
Issue
2-3
Pages
874-879
ISSN
0304-3894 (ISSN-L)
OpenAlex
W2018723048
Cited by
143
References
27
Citations by year
2026: 3 · 2025: 6 · 2024: 18 · 2023: 2 · 2022: 6 · 2021: 9 · 2020: 12 · 2019: 7 · 2018: 14 · 2017: 9 · 2016: 9 · 2015: 10 · 2014: 8 · 2013: 9 · 2012: 4
FWCI
6.22
Type
journal article
Language
en
Open access
Locations
  • Journal of Hazardous Materials (publishedVersion)
  • PubMed (publishedVersion)
  • Research Center for Eco-Environmental Sciences OpenIR (Chinese Academy of Sciences) (submittedVersion, cc-by-nc-nd)
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Membrane Separation Technologies
  • Physical Sciences › Environmental Science › Environmental Chemistry › Arsenic contamination and mitigation
  • Physical Sciences › Engineering › Biomedical Engineering › Membrane-based Ion Separation Techniques
Keywords
arsenic removal, direct contact membrane distillation, arsenite, arsenate, PVDF membranes, ion rejection, permeate flux, hydrophobic membranes, arsenic removal efficiency, membrane stability
MeSH terms
Arsenic, Filtration, Fluorocarbon Polymers, Ions, Membranes, Artificial, Permeability, Polyvinyls, Water Pollutants, Chemical, Arsenites

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