Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/78933
Title: Separation of Oil in Water Emulsion by Tangential Flow Microfiltration Process
Authors: WAN THIAM TEIK
Keywords: Microfiltration, oil in water emulsions, oil rejection efficiency, ceramic membrane, ultrasound cavitations, fouling control
Issue Date: 8-Jan-2014
Source: WAN THIAM TEIK (2014-01-08). Separation of Oil in Water Emulsion by Tangential Flow Microfiltration Process. ScholarBank@NUS Repository.
Abstract: Microfiltration has emerged as a useful alternative for treating the oil-water emulsions. In this work, tangential flow microfiltration of oil-water mixture was studied using ceramic membrane. At a feed of 500 - 1000 ppm oil concentration, a microfiltration ceramic membrane of 0.5 ?m pore size was proven capable of producing filtrate lower than the threshold required for offshore produced water effluent, typically 29 mg/l residual oil, in the Gulf of Mexico. However, membrane has a major drawback in the form of fouling. Decline in permeation flux should be expected over time of operation. For controlling the membrane fouling, a novel attempt of having in-situ cleaning using ultrasound cavitations was investigated. Results of the experiments indicate significant recovery of filter permeability and decline in resistance. Encouraging results shows it is indeed possible to conduct in-situ cleaning while the filtration is still in operation and reduce cost for membrane replacement.
URI: http://scholarbank.nus.edu.sg/handle/10635/78933
Appears in Collections:Ph.D Theses (Open)

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