EngLib USM > Ω School of Chemical Engineering >

Oil emulsion separation using forward osmosis and its performance evaluation

Oil emulsion separation using forward osmosis and its performance evaluation / Melvin Raj Kunalan

Abstract Dalam kajian ini, pemisahan air daripada air yang dihasilkan sintetik dan emulsi minyak dalam air melalui osmosis ke hadapan telah dijalankan. Membran yang digunakan dalam kajian ini adalah membran komposit filem tipis (TFC) dengan lapisan poliamida aktif. Kesan kepekatan minyak makanan yang berbeza (50ppm, 100pp, dan 500ppm) pada prestasi membran dipelajari. Telah didapati bahawa fluks air menurun apabila kepekatan minyak suapan meningkat kerana pembentukan lapisan kek pada permukaan membran. Fluks permeat emulsi minyak dalam air adalah lebih tinggi daripada air yang dihasilkan sintetik kerana kehadiran garam laut dalam air yang dihasilkan sintetik yang memberikan tekanan osmotik yang lebih tinggi. Fenomena pencemaran membran diperhatikan dan dianalisis dengan menggunakan mikroskop elektron scanning (SEM). Membran TFC yang digunakan dalam kajian ini memberikan kadar penolakan minyak yang berkesan sebanyak 99.2% dan kadar pencemaran yang minima. Nilai fluks yang diperoleh untuk air yang dihasilkan sintetik dan emulsi minyak dalam air adalah 0.001295 m3/m2.h and 0.004078 m3/m2.h. _______________________________________________________________________________________________________ In this study, the separation of water from synthetic produced water and oil-in-water emulsion via forward osmosis was carried out. The membrane used in this study was thin film composite (TFC) membrane with an active polyamide layer. The effect of different feed oil concentrations (50ppm, 100pp, and 500ppm) on the membrane performance was studied. It was found that the water permeate flux decreased when the feed oil concentration was increased due to the formation of cake layer on the membrane surface. The permeate flux of oil-in-water emulsion is higher than that of synthetic produced water due to the presence of sea salt in the synthetic produced water that gives a higher osmotic pressure. The fouling phenomena of the membrane is observed and analysed using scanning electron microscope (SEM). The TFC membranes used in this study gave an effective oil rejection rate of 99.2% with minimal fouling tendency. The flux values obtained for synthetic produced water and oil-in-water emulsion were 0.001295 m3/m2.h and 0.004078 m3/m2.h respectively.

Contributor(s): Melvin Raj Kunalan - Author Primary Item Type: Final Year Project Identifiers: Accession Number : 875007531 Language: English Subject Keywords: separation; oil-in-water; osmosis First presented to the public: 6/1/2018 Original Publication Date: 7/18/2018 Previously Published By: Universiti Sains Malaysia Place Of Publication: School of Chemical Engineering Citation: Extents: Number of Pages - 63 License Grantor / Date Granted:   / ( View License ) Date Deposited 2018-07-30 16:49:54.04 Date Last Updated 2019-01-07 11:24:32.9118 Submitter: Mohd Jasnizam Mohd Salleh

All Versions

• Help | 
• About | 
• Privacy Policy