Please use this identifier to cite or link to this item:
Title: Boron Removal By Reverse Osmosis Membranes
Keywords: boron removal, pH, RO membrane, salinity, zeta potential
Issue Date: 12-Dec-2011
Citation: HTUN OO @ MAUNG HTUN OO (2011-12-12). Boron Removal By Reverse Osmosis Membranes. ScholarBank@NUS Repository.
Abstract: While most of the chemicals present in water could be effectively rejected by reverse osmosis membranes, removal of some trace elements such as boron is relatively low. The interplay between pH and ionic strength is believed to be the key to understand the boron removal. Owing to several reports of lower pKa at higher salinity to form negatively charged and larger size borate ion, one may expect to achieve better boron removal at higher salinity. At pH 9, boron removal by brackish water reverse osmosis (BWRO) membranes was found to be lower at higher salinity. However, ESPAB and SWC4+ membranes showed concave pattern removal from low to high salinity. At pH 7, trends of removal by BWRO membranes at different salinities were found to be similar to those at pH 9. However, removal by ESPAB and SWC4+ remained constant across all salinities. Removal mechanisms seemed to vary under different situations.
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
Boron-Thesis (for FINAL).pdf779.54 kBAdobe PDF



Page view(s)

checked on May 23, 2019


checked on May 23, 2019

Google ScholarTM


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