Please use this identifier to cite or link to this item:
Title: Rejection of steriod hormone estrone by NF/RO membranes
Authors: JIN XUE
Keywords: Nanofiltration (NF), Reverse Osmosis (RO), Endocrine Disrupting Chemicals (EDCs), Estrone, Rejection, Dissolved Organic Matter (DOM)
Issue Date: 13-Nov-2007
Citation: JIN XUE (2007-11-13). Rejection of steriod hormone estrone by NF/RO membranes. ScholarBank@NUS Repository.
Abstract: A laboratory-scale crossflow membrane filtration system was used to investigate estrone rejection by NF/RO membranes in different water matrix. In single-organic solutions, initial excellent removal performances of all membranes could be attributed to their adsorption capabilities and size exclusion, while when the adsorption of estrone into membranes reached equilibrium, size exclusion would become the overriding removal mechanism. Water chemistry was important in determining estrone rejection at later filtration stage. In NOM-containing solutions, estrone rejection depended on both type of NOM (dextran and HA) co-present and solution chemistry. Greatest HA effect on the fate and transport of estrone occurred at low pH, IS and calcium concentration. In treated effluents estrone removal efficiencies were consistently higher than the results obtained in single-organic solutions. HpoA fraction made crucial contribution to this improvement. The strongest b enhancement effectb of HpoA on estrone rejection was observed at high pH, high IS and low calcium concentration.
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
JinX.pdf.pdf2.18 MBAdobe PDF



Page view(s)

checked on Apr 26, 2019


checked on Apr 26, 2019

Google ScholarTM


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.