Malaysian Journal of Analytical Sciences Vol 20 No 3 (2016): 510 - 516

DOI: http://dx.doi.org/10.17576/mjas-2016-2003-07

 

 

 

THE EFFECT OF CTAB AND SDS SURFACTANT ON THE MORPHOLOGY AND PERFORMANCE OF LOW PRESSURE ACTIVE REVERSE OSMOSIS MEMBRANE

 

(Kesan Surfaktan CTAB dan SDS Terhadap Morfologi dan Prestasi Membran Osmosis Berbalik Aktif Bertekanan Rendah)

Nurul Syuhada Mohd Ali and Abdul Rahman Hassan*

 

Industrial Membrane Technology Lab (IMTL), Department of Industrial Chemical Technology,

Faculty of Science and Technology,

Islamic Science University of Malaysia, 71800 Nilai, Negeri Sembilan, Malaysia

 

*Corresponding author: abdrahman@usim.edu.my

 

 

Received: 24 February 2015; Accepted: 27 October 2015

 

 

Abstract

This study reported on the preparation of newly low pressure active reverse osmosis (LPARO) membrane by phase inversion technique. The effect of cetyl trimethylammonium bromide (CTAB) and sodium dodecyl sulphate (SDS) as surfactants on performance and morphological structure were examined. Using brackish water as a sample, the membrane performance was evaluated in terms of pure water permeation (PWP), flux and salt rejection. Experimental data revealed that at 2.0 wt. % of SDS, the LPARO membrane achieved the optimum performance and produced the finest membrane.

 

Keywords: low pressure reverse osmosis, surfactant, morphology, performance, brackish water

 

Abstrak

Kajian ini melaporkan mengenai penyediaan membran osmosis songsang aktif bertekanan rendah (LPARO) dengan teknik fasa penyongsangan. Kesan setil trimetilammonium bromida (CTAB) dan natrium dodekil sulfat (SDS) sebagai surfaktan terhadap prestasi dan struktur morfologi telah diselidik. Dengan menggunakan air payau sebagai contoh, prestasi membran telah dinilai dari segi penyerapan air tulen (PWP),  penyingkiran fluks dan garam.  Data  eksperimen  menunjukkan bahawa pada 2.0 wt . % SDS, membran LPARO berjaya mencapai prestasi yang optimum dan menghasilkan membran yang terbaik.

 

Kata kunci: osmosis songsang bertekanan rendah, surfaktan, morfologi, prestasi, air payau

 

References

1.       Strathmann. H. and Koch. K. (1977). The formation mechanism of phase-inversion membranes. Desalination, 21: 241 – 255.

2.       Yuxin, M., Fengmei, S., Jun, M., Miaonan. W., Jun, Z. and Congjie, G. (2011). Effect of PEG addiive on the morphology and performance of polysulfone ultrafiltration membranes. Desalination, 272: 51 – 58.

3.       Rahimpour, A., Madaeni, S. S. and Mansourpanah, Y. (2007). The effect of anionic, non-ionic and cationic surfactants on morphology and performance of polyethersulfone ultrafiltration membranes for milk concentration. Journal of Membrane Science, 296: 110 – 121.

4.       Han, M. J. and Nam. S. T. (2002). Thermodynamic and rheological variation in polysulfone solution by PVP and its effect in the preparation of phase inversion membrane. Journal of Membrane Science, 202: 55 – 61.

5.       Jung, B. Yoon, J. K., Kim, B. and Rhee, H. (2004). Effect of molecular weight of polymeric additives on formation, permeation properties and hypochlorite treatment of asymmetric PAN membranes. Journal of  Membrane Science, 243: 45 – 57.

6.       Fontananova, E., Jansen, J. C., Cristiano, A., Curcio, E. and Drioli, E. (2006). Effect of additives in the casting solution on the formation of PVDF membranes. Desalination, 192: 190 – 197.

7.       Curcio, E., Fontananova, E., Di Profio, G. and Drioli, E. (2006). Influence of the structural properties of poly (vinylidene fluoride) membranes on the heterogeneous nucleation rate of protein crystals. The Journal of Physical Chemistry B, 110(25): 12438 – 12445.

8.       Saljoughi, E. and Mohammadi, T. (2009). Cellulose acetate (CA) / polyvinylpyrrolidone (PVP) blend asymmetric membranes: Preparation, morphology and performance.  Desalination. 249: 850 – 854.

9.       Yamasaki, A., Tyagi, R. K., Fouda,  A. E., Jonnason, K. and Matsuura, T. (2000). Effect of SDS surfactant as an additive on the formation of asymmetric polysulfone membranes for gas separation in: Pinnau, I., Freeman, B.D. (Eds.), Membrane Formation and Modification, Chapter 6.

10.    Alsari, A. M., Khulbe, K. C. and Matsuura, T. (2001). The effect of sodium dodecyl sulfate solutions as gelation media on the formation of PES membranes. Journal of Membrane Science, 188(2): 279 – 293.

11.    Mulijani, S., Budianto, E. and Hikam, M. (2010). Formation and Characterization of Asymetric Nanofiltration Membrane: Effect of Temperature and Surfactant as a Template. ASEAN Journal on Science & Technology For Development, 27: 21 – 29.

12.    Saedi, S., Madaeni, S. S., Shamsabadi, A. A. and Mottaghi, F. (2012). The effect of surfactants on the structure and performance of PES membrane for separation of carbon dioxide from methane. Separation and Purification Technology, 99: 104 – 119.

13.    Ghaemi, N., Madaeni, S. S., Alizadeh, A., Daraei, P., Zinatizadeh, A. A. and Rahimpour, F. (2012). Separation of nitrophenols using cellulose acetate nanofiltration membrane: Influence of surfactant additives. Separation and Purification Technology, 85: 147 – 156.