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New CPS-PPEES blend membranes for CaCI2 and NaCI rejection

Hegde, Chitrakar and M. Isloor, Arun and Padaki, Mahesh and Ismail, Ahmad Fauzi and Lau, Woei Jye (2012) New CPS-PPEES blend membranes for CaCI2 and NaCI rejection. Membrane Water Treatment, An International Journal, 3 (1). pp. 25-34. ISSN 2092-7037

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Official URL: http://www.techno-press.org/samplejournal/pdf/mwt0...


Carboxylated polysulfone (CPS), poly (1,4-phenylene ether ethersulfone) (PPEES), membranes were prepared and used for the separation of NaCl and CaCl2, in efficient way with less energy consumption. In this work, nanofiltration and reverse osmosis membranes were employed to the salt rejection behavior of the different salt solutions. The influence of applied pressure (1-12 bar), on the membrane performance was assessed. In CM series of membranes, CM1 showed maximum of 97% water uptake and 36% water swelling, whereas, CM4 showed 75% water uptake and 28% water swelling. In RCM series, RCM1 showed 85% water uptake and 32% water swelling whereas, in RCM4 it was 68% for water uptake and 20% for water swelling. Conclusively reverse osmosis membranes gave better rejection whereas nanofiltration membrane showed enhanced flux. CM1 showed 58% of rejection with 12 L/(m2 h) flux and RCM1 showed 55% of rejection with 15 L/(m2 h) flux for 0.1 wt.% NaCl solution. Whereas, in 0.1 wt.% CaCl2 solution, membrane CM1 showed 78% of rejection with 12 L/(m2 h) flux and RCM1 showed 63% rejection with flux of 9 L/(m2 h).

Item Type:Article
Uncontrolled Keywords:carboxylated polysulfone, NF, RO, synthesis, rejection
Subjects:Q Science
Divisions:Chemical and Natural Resources Engineering
ID Code:31105
Deposited By: Fazli Masari
Deposited On:05 Mar 2014 00:25
Last Modified:25 Mar 2019 08:08

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