Removal of 17β estradiol and fluoranthene by nanofiltration and ultrafiltration

Yeomin Yoon, Paul Westerhoff, Jaekyung Yoon, Shane A Snyder

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

With the recent emergence of endocrine disrupting compounds as an important potable drinking water and reclaimed wastewater quality issue, the removal of two estrogenic compounds (17β-estradiol and fluoranthene) by nanofiltration and ultrafiltration membranes was investigated. A less hydrophobic organic compound model species [parachlorobenzoic acid (PCBA)] was tested. 17β-estradiol (E2), fluoranthene, and PCBA were applied to the membrane in the presence and absence of natural organic matter (NOM). Both batch adsorption and dead-end stirred-cell filtration experiments indicated that adsorption is an important mechanism for transport/removal of relatively hydrophobic compounds, and is related to the octanol-water partition coefficient (KOW) values. All filtration measurements were performed approximately the same permeate flow rate in order to minimize artifacts from concentration polarization varied with different hydrodynamic operating conditions at the membrane interface. The percent removal by dead-end stirred-cell filtration ranged from 10 to >95% depending upon membrane pore size/hydrophobicity and presence/absence of NOM at an initial concentration ranging from 0.1 to 0.5 μM. Additional batch adsorption experiments with radio-label (3H) E2 at lower concentrations ranging 0.025 to 5 nM showed that E2 removal due to adsorption was independent of its initial concentration. Adsorption occurs both on the membrane surface and interior membrane pore surfaces. However, adsorption was insignificant for PCBA (log K OW=2.7), but removal presumably occurred due to electrostatic exclusion. Partition coefficients (log K) of 0.44 to 4.86 measured in this study increased with log KOW and membrane pore size.

Original languageEnglish (US)
Pages (from-to)1460-1467
Number of pages8
JournalJournal of Environmental Engineering
Volume130
Issue number12
DOIs
StatePublished - Dec 2004
Externally publishedYes

Fingerprint

Nanofiltration
fluoranthene
Ultrafiltration
ultrafiltration
Estradiol
membrane
Membranes
adsorption
Adsorption
partition coefficient
Potable water
Biological materials
Pore size
Acids
acid
drinking water
estrogenic compound
Octanols
organic matter
hydrophobicity

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Science(all)
  • Environmental Chemistry
  • Civil and Structural Engineering

Cite this

Removal of 17β estradiol and fluoranthene by nanofiltration and ultrafiltration. / Yoon, Yeomin; Westerhoff, Paul; Yoon, Jaekyung; Snyder, Shane A.

In: Journal of Environmental Engineering, Vol. 130, No. 12, 12.2004, p. 1460-1467.

Research output: Contribution to journalArticle

Yoon, Yeomin ; Westerhoff, Paul ; Yoon, Jaekyung ; Snyder, Shane A. / Removal of 17β estradiol and fluoranthene by nanofiltration and ultrafiltration. In: Journal of Environmental Engineering. 2004 ; Vol. 130, No. 12. pp. 1460-1467.
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