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Title: Estrogenic hormone removal from wastewater using NF/RO membranes
Authors: Nghiem, L.D.
Manis, A.
Soldenhoff, K.
Schäfer, Andrea
Issue Date: 2004
Citation: Nghiem, L.D. ; Manis, A. ; Soldenhoff, K. ; Schäfer, A.I. (2004) Wastewater Treatment for Estrogenic Hormone Removal using NF/RO Membranes, Journal of Membrane Science, 242, 1-2, 37-45.
Publisher: Elsevier
Abstract: This paper investigates the separation process of two estrogenic hormones, estrone and estradiol, using eight commercial NF and low pressure RO membranes. The results indicate that the separation mechanism of estrone and estradiol in membrane filtration processes is similar. While estrogenic hormone retention by porous membranes decreases with decreasing adsorption and the subsequent retention is relatively low, tight NF and RO membranes can retain estrogenic hormones effectively. It appears that the presence of organic matter in solution can enhance retention due to the interaction of such substances with estrogenic hormones. The results also suggest that physicochemical interactions within the membrane can play an important role. There is no cross flow effect on retention, whereas an increase in transmembrane pressure may lead to a decrease in steroid hormones retention for some membranes.
Keywords: estrone
endocrine disrupting chemicals
reserve osmosis
trace contaminants
membrane adsorption
Appears in Collections:Membrane Technology Research Group publications
Engineering publications

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