Fractionation of organic matters in sludge rejected by NF membrane

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

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)386-392
Journal / PublicationDesalination
Volume234
Issue number1-3
Publication statusPublished - 31 Dec 2008
Externally publishedYes

Abstract

Nanofiltration membrane bioreactor (NF-MBR) was proposed to provide quality effluent free of virus and most large organic substances. The dissolved organic matter (DOM) in soluble microbial products (SMP), loosely bound extracellular polymeric substances (LBEPS) and tightly bound extracellular polymeric substances (TBEPS) of wastewater sludge before and filtered through nanofiltration membrane were fractioned using size exclusion chromatography, characterized with ultraviolet absorbance at 230, 254 and 280 nm, dissolved oganic carbon (DOC) content, and excitation-emission-matrix (EEM) spectra. Except for long-chain organic acids, the membrane rejected most organic matters in SMP and LBEPS fractions. However, the membrane failed to reject fluorescent DOM from TBEPS at molecular weight of 3000-7000 Da. The content of TBEPS in the mixed liquor affected significantly the effluent quality in NF-MBR application. © 2008 Elsevier B.V. All rights reserved.

Research Area(s)

  • DOC, EEM, EPS, Filtration, SEC, Sludge, SMP

Bibliographic Note

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Citation Format(s)

Fractionation of organic matters in sludge rejected by NF membrane. / Tsai, B. N.; Chang, C. H.; Lee, D. J. et al.
In: Desalination, Vol. 234, No. 1-3, 31.12.2008, p. 386-392.

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