Dense membranes precoated with aluminium tridecamer (Al 13) for water treatment

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

11 Scopus Citations
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Author(s)

  • Justin Chun-Te Lin
  • An-Chi Cheng
  • Ya-Fan Lin
  • Duu-Jong Lee
  • Wan-Mu Guo

Detail(s)

Original languageEnglish
Pages (from-to)349-352
Journal / PublicationDesalination
Volume284
Publication statusPublished - 4 Jan 2012
Externally publishedYes

Abstract

Coagulation or dense membrane processes, i.e. nanofiltration (NF) and reverse osmosis (RO), are intensively used in surface water treatment. Conventional coagulation process is used to remove colloids and particles, while the dense membrane processes are used to remove trace dissolved contaminants. This paper applied an in-situ surface modification technique by directly depositing the laboratory synthesized coagulant, aluminium tridecamer ([AlO 4Al 12(OH) 24(H 2O) 12 ]Cl 7, Al 13), as a coating solution for two NF and one RO membranes. The dense membranes can completely reject the Al 13 compounds; while the coated membranes were effectively removing humic acid and 17β-estradiol (E2) from waters. The coated Al 13 layer revealed structural stability subjected to salt (NaCl), acid (pH 5) and base (pH 9) challenges. © 2011 Elsevier B.V..

Research Area(s)

  • Al 13, In situ coating, NF membrane, Rejection, RO membranes

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Dense membranes precoated with aluminium tridecamer (Al 13) for water treatment. / Lin, Justin Chun-Te; Cheng, An-Chi; Lin, Ya-Fan et al.
In: Desalination, Vol. 284, 04.01.2012, p. 349-352.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review