Impact of organic matrix compounds on the retention of steroid hormone estrone by a ‘loose’ nanofiltration membrane

Schäfer, A. I., Nghiem, L. D., Meier, A. and Neale, P. A. (2010) Impact of organic matrix compounds on the retention of steroid hormone estrone by a ‘loose’ nanofiltration membrane. Separation and Purification Technology, 73 2: 179-187. doi:10.1016/j.seppur.2010.03.023


Author Schäfer, A. I.
Nghiem, L. D.
Meier, A.
Neale, P. A.
Title Impact of organic matrix compounds on the retention of steroid hormone estrone by a ‘loose’ nanofiltration membrane
Journal name Separation and Purification Technology   Check publisher's open access policy
ISSN 1383-5866
1873-3794
Publication date 2010-06-18
Sub-type Article (original research)
DOI 10.1016/j.seppur.2010.03.023
Volume 73
Issue 2
Start page 179
End page 187
Total pages 9
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2011
Language eng
Subject 0301 Analytical Chemistry
0904 Chemical Engineering
Abstract The impact of solute–solute interactions on retention and membrane adsorption of the micropollutant estrone was determined in the presence of surfactant sodium dodecyl sulphate (SDS), natural organic matter (NOM) and cellulose. A five cycle stirred cell protocol was used to study progressing saturation of a loose nanofiltration membrane with estrone. Adsorption was absent at high pH when the estrone molecule was dissociated, while at low and neutral pH the membrane was saturated after three filtration cycles and breakthrough was obvious. Increased estrone retention in the presence of cellulose was observed due to estrone–cellulose partitioning. SDS and NOM reduced estrone retention at low and neutral pH while no significant effect was visible at alkaline pH when solute–solute interactions were minimal. The adsorption and deposition of estrone onto the membrane was up to 50% of the total estrone in solution. Using experimental partition coefficients, the mass of estrone sorbed to organic matter as a function of pH was estimated. Results were similar to the total mass of estrone adsorbed to the membrane despite the partition coefficients being quantified at equilibrium (24 h) while the experiment was (naturally) not. This study provides first quantifiable evidence of the impact of micropollutant–organic matter interactions in membrane filtration. Copyright © 2010 Elsevier B.V. All rights reserved.
Keyword Nanofiltration
Solute–solute interactions
Micropollutants
Estrone
Membrane adsorption
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
National Research Centre for Environmental Toxicology Publications
 
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Created: Fri, 16 Jul 2010, 14:47:40 EST by Dr Peta Neale on behalf of National Res Centre For Environmental Toxicology