Dalam teknologi membran, pencemaran membran adalah salah satu masalah
utama. Ia menyebabkan kemerosotan fluks. Oleh itu, dalam kajian ini, tingkah laku
pencemaran membran bagi ladang ikan rawatan efluen menggunakan membran
ultrafiltration telah dikaji. Membran yang digunakan dalam kajian ini adalah membran
hidrofilik disintesis sendiri. Kesan keadaan suapan yang berbeza, kesan kadar suapan
aliran yang berbeza (4L / min, 6L / min dan 8L / min) dan tekanan suapan yang berbeza
(0.4atm, 0.8atm dan 1.2atm) prestasi membran dan pencemaran membran telah dikaji. Ia
telah didapati bahawa fluks adalah lebih 0.31 L/m2.hr tinggi bagi efluen selepas filtrasi
berbanding dengan efluen sebelum filtrasi. Fluks permeat meningkat secara bukan linear
dengan tekanan suapan, ini menunjukkan bahawa pencemaran membran mendominasi
profil fluks. Fenomena pencemaran membran telah disahkan lebih liang disekat terutama
pada tekanan operasi tinggi iaitu 1.2 bar. Fluks didapati optima pada kadar suapan aliran
6L/min dan tekanan suapan 1.2atm.
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In membrane technology, membrane fouling is one of the major drawbacks. It
causes flux declination. Thus, in this study, the fouling behavior of fish farm effluent
treatment on ultrafiltration membrane was studied. The membrane used in this study was
a self-synthesized hydrophilic membrane. The effect of different feed conditions,
different feed flowrate (4L/min, 6L/min and 8L/min) and different feed pressure (0.4atm,
0.8atm, and 1.2atm) on the membrane performance and membrane fouling were studied.
It was found that the flux was higher for pre-filter effluent by 0.31 L/m2.hr compared to
effluent before pre-filtration. The permeate flux increased non-linearly with feed pressure
which showed that fouling is dominating the flux profile. The fouling phenomena were
further confirmed to be pore blocking especially at high operating pressure (1.2 bar). It
was found the flux profile was the highest at optimum feed flowrate 6L/min and transmembrane
pressure.