Che Lah, Nuur Fahanis
(2012)
Ultrasonically Aided Cross-Flow Membrane Filtration System For Latex Wastewater.
Masters thesis, Perpustakaan Hamzah Sendut.
Abstract
In this current study, an ultrasonically-aided membrane filtration system that offers
cleaned membrane after being fouled by latex wastewater was developed.
Characterizations of latex wastewater were investigated to decide the best and suitable
membrane used for this filtration system under optimum condition. Some
characterization steps were done such as the latex particle size analysis, by using
Transmission Electron Microscopy (TEM) and Atomic Force Microscope (AFM), pH,
total solid (TS), total suspended solid (TSS), Biological Oxygen Demand (BODs),
Chemical Oxygen Demand (COD) and viscosity. In order to obtain high permeability of
the membrane, cellulose acetate membrane was used as the filter after characterized the
latex wastewater based on the hydrophilicity of the membrane. Based on the literature,
an ultrasonic-aided membrane filtration system was set up. The result from surface
contact angle analysis proves that the membrane was a good hydrophilic membrane
which is one of the crucial characteristic of a membrane used in this study. Fourier
Transform Infra Red (FTIR) analysis was done to investigate the cleaning effectiveness
of ultrasound waves to the fouled-membrane surface. The model of the fouling process
was determined from the permeate flux trends.
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