A hydrogel-coated membrane for highly efficient separation of microalgal bio-lipid

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A cross-linked hydrogel-coated membrane was fabricated to achieve simple but highly efficient separation of bio-lipids directly from an aqueous microalgal culture medium. The membrane is composed of a stainless steel membrane coated conformally with a cross-linked hydrogel, poly(2-hydroxyethyl methacrylate) (pHEMA), synthesized by a photo-initiated chemical vapor deposition (piCVD) process. The pHEMA-coated membrane has hydrophilicity and underwater-oleophobicity for efficient separation of a bio-lipid-in-hexane/water mixture by gravity. The conformal pHEMA film-coated membrane enables extremely high oil rejection performance with intrusion pressure of 6.1 kPa and water permeation flux of 6.5x10(3) L m(-2) h(-1), with excellent separation efficiency greater than 98.0%.
Publisher
KOREAN INSTITUTE CHEMICAL ENGINEERS
Issue Date
2018-05
Language
English
Article Type
Article
Citation

KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.35, no.6, pp.1319 - 1327

ISSN
0256-1115
DOI
10.1007/s11814-018-0039-3
URI
http://hdl.handle.net/10203/244018
Appears in Collection
CBE-Journal Papers(저널논문)
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