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Showing 1 to 20 of 63 for “"Microfiltration"”.
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Microfiltration of Corn Starch Hydrolysate Using Ceramic Membranes
A microfiltration membrane plant was designed for clarification of 500 gallons per minute (113.6 m$\sp3$/hour) of corn starch hydrolysate based on the process model and various capital and operating costs. The optimum membrane plant would have two feed-and-bleed stages with a total area of 883.2 …
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Cross-flow ceramic microfiltration of ethanol fermentation broths
… research was to optimize the ceramic cross-flow microfiltration of ethanol fermentation broths. The ceramic membranes from three different manufacturers were made of $\alpha$-alumina with pore sizes of 0.05 $\mu$m-1.4 $\mu$m. Water permeabilities for the 0.2 $\mu$m Ceraver, Ceraflo and CeraMem …
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Development and evaluation of an active precoated microfiltration system
Submitted in part fulfilment of the requirements for the Degree of Masters in Technology in Chemical Engineering, ML Sultan Technikon, Durban, South Africa, 2003.
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Performance of a Wastewater Treatment Pond System with Microfiltration
… POND SYSTEM WITH </strong></p> <p><strong>MICROFILTRATION </strong></p> <p>Eric Martin</p> <p>The Woodlands Wastewater Treatment Plant (WWWTP) treats wastewater from the Woodlands housing community near Nipomo, California. The treated effluent is recycled for irrigation of a golf course …
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Surface modification of electrospun poly(vinylidene fluoride) nanofibrous microfiltration membrane
… would be to develop a high flux asymmetric microfiltration electrospun nanofibrous membrane (ENM) through surface modification. Another aspect of the thesis would explore the potential of ENM in separating microparticles. It is anticipated that the modified ENM would have smaller surface …
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Microfiltration of Synthetic Metal Working Fluids Using Aluminum Oxide Membranes
The design of membrane filtration systems is also influenced by the rate of contaminant build-up in the MWF. Microbiological population growth can grow to potentially hazardous levels in extremely short time-scales. Membrane filtration systems designed to control microbial populations must remove …
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Membrane Fouling In Cold Microfiltration Of Skim Milk: Mechanisms And Control
Microfiltration (MF) can effectively remove microorganisms and somatic cells from milk, increasing the safety and shelf life of milk and dairy products. The main challenge in MF is membrane fouling, which leads to a significant decline in permeate flux over time. This work aimed to elucidate the …
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Combined coagulation and membrane microfiltration for removal of natural organic material (nom)
… to conventional processes is to combine membrane microfiltration (MF) with coagulation for NOM removal. The advantages of MF technology over traditional sand filters is the maintenance of an absolute barrier throughout the filtration process, thereby enhancing the physical separation process by …
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Interaction between membrane and protein properties on flux decline during sterile microfiltration
Microfiltration is widely used in industry to filter out particulate matter that contaminates or slows down the performance of the membrane. In the biopharmaceutical industry in particular, bacteria, microorganisms and viruses are filtered out using sterile microfiltration. Numerous studies have …
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Examination Of Methods To Reduce Membrane Fouling During Dairy Microfiltration And Ultrafiltration
… membrane filtration processes such as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), and reverse osmosis (RO) provide opportunities for the dairy industry to better utilize milk by separating its components based on size. However, widespread adoption of some of these …
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Fouling of Aluminum Oxide Microfiltration Membranes by Semi-Synthetic Metal Working Fluids
The modeled membrane fouling mechanisms were validated through the reformulation of a semi-synthetic MWF designed to have greater microemulsion stability. It was experimentally verified that the new fluid did not see significant aggregation. Accordingly this fluid did not show evidence of …
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Electrochemical Pretreatment for Microfiltration of Surface Water: Mechanisms of Fouling and Its Control
… for fouling control during surface water microfiltration (MF) using bench-scale galvanostatic batch electrolysis experiments followed by constant pressure, dead-end MF. In all cases, electrochemical aluminum production quantitatively obeyed Faraday’s law with a 3-electron transfer at …
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An exploratory investigation of crossflow microfiltration for solid/liquid separation in biological wastewater treatment
… investigation into the application of Crossflow Microfiltration (CFMF) for solid/liquid separation in biological wastewater treatment systems. The principal objective of the study was to assess the influence of CFMF on the performance of identified biological wastewater treatment systems. It was …
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Screening of Microfiltration and Ultrafiltration Ceramic Membranes for Produced Water Treatment and Testing of Different Cleaning Methods
… used to treat produced water (PW). Two ceramic microfiltration (MF) membranes and two ceramic ultrafiltration (UF) membranes were tested. The treatment target was to reach a contamination level suitable for further treatment by nanofiltration (NF)/reverse osmosis (RO) polymeric membranes, …
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Characterization of microporous ECTFE membranes exposed to different liquid media and ?-radiation and nanoparticle microfiltration through such membranes
… as barrier function. A major application is for microfiltration (MF). Changes in the properties of MF membranes exposed to acids, bases and organic solvents are of interest in semiconductor processing as well as in membrane contactor applications. Microfiltration membranes used for sterilization …
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Physicochemical characterisation of protein ingredients prepared from milk by ultrafiltration or microfiltration for application in formulated nutritional products
… was performed at laboratory-scale using ‘cold’ microfiltration (MF) at <4°C with either 1000 kDa molecular weight cut-off or 0.1 µm pore-size membranes. At pilot-scale, a second ‘warm’ MF step at 26°C was incorporated for selective purification of micellised β-casein from whey proteins; using …
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Dead-end and crossflow microfiltration of yeast and bentonite suspensions: experimental and modelling studies incorporating the use of artificial neural networks
… prediction of the filtration characteristics of microfiltration systems was assessed. ANNs were developed to correlate specific cake resistance and steady state flux of dried yeast suspensions in dead-end microfiltration for a range of operating parameters. Trained networks were used in …
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Fouling mechanisms in the membrane filtration of single and binary protein solutions
In this study the fouling mechanisms of various microfiltration and ultrafiltration membranes were studied when subjected to crossflow filtration using various protein solutions. Experimentation was carried out using controlled flux experiments and fouling phenomena was investigated via the …
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Conductive Membranes for Fouling Mitigation and Permeate Flux Control
… control through conductive modification of the microfiltration membrane, namely coating a layer of conducting polymer on the membrane surface, to improve the function and, subsequently, cost-effectiveness of filtration systems. In this work, a microfiltration membrane was first fabricated by …
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