Antifouling membranes for oily wastewater treatment

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Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Author
Date
2018
Department
Sun Yat-Sen University
Department of Applied Physics
Department of Bioproducts and Biosystems
Major/Subject
Mcode
Degree programme
Language
en
Pages
29
90-109
Series
CURRENT OPINION IN COLLOID AND INTERFACE SCIENCE, Volume 36
Abstract
Oily wastewater is an extensive source of pollution to soil and water, and its harmless treatment is of great importance for the protection of our aquatic ecosystems. Membrane filtration is highly desirable for removing oil from oily water because it has the advantages of energy efficiency, easy processing and low maintenance cost. However, membrane fouling during filtration leads to severe flux decline and impedes long-term operation of membranes in practical wastewater treatment. Membrane fouling includes reversible fouling and irreversible fouling. The fouling mechanisms have been explored based on classical fouling models, and on oil droplet behaviors (such as droplet deposition, accumulation, coalescence and wetting) on the membranes. Membrane fouling is dominated by droplet-membrane interaction, which is influenced by the properties of the membrane (e.g., surface chemistry, structure and charge) and the wastewater (e.g., compositions and concentrations) as well as the operation conditions. Typical membrane antifouling strategies, such as surface hydrophilization, zwitterionic polymer coating, photocatalytic decomposition and electrically enhanced antifouling are reviewed, and their cons and pros for practical applications are discussed.
Description
| openaire: EC/H2020/725513/EU//SuperRepel
Keywords
oily wastewater, membrane, fouling, wettability, emulsion
DOI
10.1016/j.cocis.2018.02.002
Citation
Huang , S , Ras , R H A & Tian , X 2018 , ' Antifouling membranes for oily wastewater treatment : Interplay between wetting and membrane fouling ' , Current Opinion in Colloid and Interface Science , vol. 36 , pp. 90-109 . https://doi.org/10.1016/j.cocis.2018.02.002
Permanent link to this item
https://urn.fi/URN:NBN:fi:aalto-201805222474
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[article-cris] Kemian tekniikan korkeakoulu / CHEM