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1

Alharthi, Majed. "Fouling and cleaning studies of protein fouling at pasteurisation temperatures." Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/4892/.

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Fouling and cleaning processes impact industrial production, in terms of economics, product quality, product safety, and plant efficiency. Therefore, optimisation of fouling and cleaning processes is a significant issue, and needs a good understanding of fouling and cleaning kinetics. Ideal monitors should determine the right time when a process run should stop and when a plant will be clean in order to improve the process efficiency. This thesis investigated the fouling and cleaning behaviour of dairy fluids in a plate heat exchanger (PHE) and bench scale fouling rig, using whey protein conce
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2

Fryer, P. J. "Modelling heat exchanger fouling." Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377221.

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3

Helalizadeh, Abbas. "Mixed salt crystallisation fouling." Thesis, University of Surrey, 2002. http://epubs.surrey.ac.uk/844179/.

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The main purpose of this investigation was to study the mechanisms of mixed salt crystallisation fouling on heat transfer surfaces during convective heat transfer and sub-cooled flow boiling conditions. To-date no investigations on the effects of operating parameters on the deposition of mixtures of calcium sulphate and calcium carbonate, which are the most common constituents of scales formed on heat transfer surfaces, have been reported. As part of this research project, a substantial number of experiments were performed to determine the mechanisms controlling deposition. Fluid velocity, hea
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4

Lewis, William J. T. "Advanced studies of membrane fouling : investigation of cake fouling using fluid dynamic gauging." Thesis, University of Bath, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.646145.

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Membrane filtrations are widely used in process industries but are almost always limited by fouling, a highly studied and significant problem. This is defined as unwanted material deposited on a membrane surface or within its pores, which can significantly impair performance and/or reduce operating life. The strategies to mitigate fouling include cleaning in place, modified membranes, and optimisation of operating conditions. In order to correctly select or target improvements to any such measures a detailed mechanistic understanding of the fouling process is important, which requires more tha
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5

Shi, Xinlong. "Membrane fouling of activated sludge." Click to view the E-thesis via HKUTO, 2004. http://sunzi.lib.hku.hk/hkuto/record/B30731884.

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6

Sandberg, Jan. "Fouling in biomass fired boilers." Licentiate thesis, Västerås : Department of Public Technology, Mälardalen University, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-219.

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7

Sandberg, Jan. "Fouling in biomass fired boilers." Doctoral thesis, Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-13204.

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This thesis describes a detailed investigation into fouling in biomass fired boilers according to fuel mixture, combustion conditions, transportation of particles by the flue gas and the probability of particles impinging and sticking onto heat transfer tubes. The effects of fouling on overall boiler performance and the efficacy of soot blowing are also investigated. Both theoretical simulations and practical experiments on a 157 MW circulating fluidized bed boiler are presented. The deposit thickness on and around a heat exchanger tube is shown to be mainly dependent on the ash particle size,
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8

Bradley, Stuart Edward. "Fouling resistant heat exchanger design." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239799.

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9

Shi, Xinlong, and 史昕龍. "Membrane fouling of activated sludge." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B30731884.

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10

Howell, John Michael. "Whey permeate fouling of evaporators." Thesis, University of Canterbury. Chemical and Process Engineering, 1998. http://hdl.handle.net/10092/10686.

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Whey permeate fouling was studied to gain a better understanding of the processes involved and find methods of alleviation. An apparatus was built which allowed study of fouling under industrial conditions. It was found that pretreatment by heating at 80°C for two minutes and then centrifuging at 630 g reduced fouling in the apparatus by 94%. This was attributed to precipitation of calcium phosphate in the solution bulk during preheating, which reduced the level of supersaturation. Heat treatment with the same conditions but without centrifuging reduced fouling by only 39%. Precipitate which f
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11

Tow, Emily Winona. "Organic fouling of desalination membranes." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111695.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 211-224).<br>Energy-ecient desalination and water reuse are necessary to ensure universal access to clean water. Reverse osmosis (RO) is the most ecient desalination process for almost any water source, but it is susceptible to membrane fouling,
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12

Alkmim, Aline Ribeiro. "Membrane Bioreactor for treating petroleum refinery effluent: treatment performance, membrane fouling mechanism and fouling control." Universidade Federal de Minas Gerais, 2015. http://hdl.handle.net/1843/BUBD-9Y2HVT.

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The work developed discusses the potential use of MBR to treat refinery effluent and operational strategies that may mitigate fouling. At first, MBR performance was evaluated in terms of pollutants removal and fouling investigation in conditions of shock load. The results demonstrated that MBR was able to reduce effectively the pollutants, meeting guideline standards of disposal and reuse for non-potable ends. FTIR results showed that organic matter was removed by biological oxidation and/or retained by adsorption in the biological sludge or retention in the UF membrane. Furthermore, SMP was p
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13

Wheeldon, Paul Robert. "Modelling of fouling in crude oil heat exchangers : an experimental investigation of fouling in laminar flow." Thesis, Teesside University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.415773.

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14

Walker, Patrick Gareth Chemical Engineering &amp Industrial Chemistry UNSW. "CFD modeling of heat exchange fouling." Awarded by:University of New South Wales. Chemical Engineering & Industrial Chemistry, 2005. http://handle.unsw.edu.au/1959.4/22385.

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Heat exchanger fouling is the deposition of material onto the heat transfer surface causing a reduction in thermal efficiency. A study using Computational Fluid Dynamics (CFD) was conducted to increase understanding of key aspects of fouling in desalination processes. Fouling is a complex phenomenon and therefore this numerical model was developed in stages. Each stage required a critical assessment of each fouling process in order to design physical models to describe the process???s intricate kinetic and thermodynamic behaviour. The completed physical models were incorporated into the si
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15

Asomaning, Samuel. "Heat exchanger fouling by petroleum asphaltenes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq25011.pdf.

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16

Nylund, Göran M. "Chemical mediation of fouling in seaweeds /." Göteborg : Göteborg University, Department of Marine Ecology, 2005. http://www.loc.gov/catdir/toc/fy0701/2006388585.html.

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17

Douch, Nicholas. "Air side fouling of heat exchangers." Thesis, University of Brighton, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.397850.

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18

Li, Ning. "Monitoring and control of boiler fouling." Thesis, Queen's University Belfast, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241379.

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19

Cohen, Ruben David. "Colloidal fouling of reverse osmosis membranes." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/15308.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1985.<br>MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING.<br>Bibliography: leaves 128-133.<br>by Ruben David Cohen.<br>Ph.D.
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20

Lodge, B. N. "Membrane fouling during domestic water recycling." Thesis, Cranfield University, 2003. http://dspace.lib.cranfield.ac.uk/handle/1826/11067.

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The performance of a combined biological aerated filter (BAF) and an ultrafiltration (UF) system for the treatment of real and synthetic greywater, settled sewage, rainwater and borehole water has been assessed at both full-scale (at the Millennium Dome Water Recycling plant) and bench-scale. Irreversible membrane fouling was explained at bench-scale in terms of a simple but novel model whereby a proportion of the membrane area is progressively blocked, in proportion to the square root of the transmembrane pressure. This model provides a link between irreversible fouling and reversible cake fi
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21

Smith, Diane Elizabeth. "Adhesion of Mycobacteria: Capture, Fouling, Aggregation." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1542537888485749.

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22

Lodge, Benjamin Nicholas. "Membrane fouling during domestic water recycling." Thesis, Cranfield University, 2003. http://dspace.lib.cranfield.ac.uk/handle/1826/11067.

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The performance of a combined biological aerated filter (BAF) and an ultrafiltration (UF) system for the treatment of real and synthetic greywater, settled sewage, rainwater and borehole water has been assessed at both full-scale (at the Millennium Dome Water Recycling plant) and bench-scale. Irreversible membrane fouling was explained at bench-scale in terms of a simple but novel model whereby a proportion of the membrane area is progressively blocked, in proportion to the square root of the transmembrane pressure. This model provides a link between irreversible fouling and reversible cake fi
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23

Hu, Zhaokang DeSimone Joseph M. "Novel perfluoropolyethers as fouling-release coatings." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2009. http://dc.lib.unc.edu/u?/etd,2561.

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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2009.<br>Title from electronic title page (viewed Oct. 5, 2009). "... in partial fulfillment of the requirements for the degree of Doctorate of Philosophy in the Department of Chemistry." Discipline: Chemistry; Department/School: Chemistry.
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24

Choo, Wen Choo. "Biomimetic approach to anti-fouling surfaces." Thesis, University of Leeds, 2010. http://etheses.whiterose.ac.uk/1694/.

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Scale formation is recognized as one of the major problems affecting production in the oil and gas sector. There are many approaches to remove and prevent scaling with chemical inhibition, chemical scale removers and mechanical methods being the most prevalent ones. Recently the focus has shifted onto more environmentally friendly inhibitors that are less toxic to the environment, thus the development of green inhibitors. Another way forward is to turn to surface engineering - this is a very popular approach in the control of biofouling but only a few attempts have been made to use it for the
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25

Tacey, Elisabeth Irene. "Laboratory testing of self polising anti fouling copolymers by capacitance measurement and atomic emission spectrometry." Thesis, King's College London (University of London), 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361415.

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26

Piltonen, P. (Petteri). "Prevention of fouling on paper machine surfaces." Doctoral thesis, Oulun yliopisto, 2013. http://urn.fi/urn:isbn:9789526202877.

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Abstract Fouling in papermaking causes major economic drawbacks due to downtime of process and paper quality defects. The surface fouling is a complex phenomenon in a paper making process, which is affected by several interconnected factors such as process environment changes from wet to dry with increasing temperature along with the variety of sticky materials present in paper raw materials. These impurities, such as waxes, coating binders, hot melts and pressure-sensitive adhesives have a tendency to attach to the surfaces of machinery during paper production and cause surface fouling. The f
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27

Kyriacou, George. "Preventing biosensor fouling by using laminar flow." Thesis, Queen Mary, University of London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417005.

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28

Marouf, Tawga. "Beräkningsalgoritm för fouling i pelletervärmeväxlare inom plasttillverkning." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-28627.

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Sweden’s energy consumption is divided into three major sectors. One of them is the industry sector. One third of Sweden’s energy consumption is converted in the industries. The chemical industry is one of those industries with great energy needs. This thesis looks into energy efficiency in industry, in particular the plastics manufacturing industry. Efficiency concerning heat exchangers, their fouling resistance and also pumps. This thesis also relates to the industry in the big picture as heat exchangers and pumps are widely used and these has a great energy and environmental efficiency. Thi
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29

Schreier, Paul Jakob Robert. "Monitoring and modelling of heat exchanger fouling." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319355.

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30

Gotham, Simon Martyn. "Mechanisms of protein fouling of heat exchangers." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357741.

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31

Downey, Imelda Louise. "Fouling of crude oil refinery preheat exchangers." Thesis, University of Bath, 1993. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.760645.

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32

Lister, Vincent Yves. "Particulate fouling in an industrial cooling system." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708736.

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33

Yeap, Boon Lin. "Designing heat exchanger networks to mitigate fouling." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.615934.

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34

Huang, Jen-Yi. "Fundamental features of food fat freezing fouling." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.607795.

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35

Jones, Gregory Mark. "Quantifying petroleum fouling of refining heat exchangers." Thesis, University of Birmingham, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.690904.

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36

Odolczyk, Katarzyna. "Coatings for the prevention of marine fouling." Thesis, Cranfield University, 2016. http://dspace.lib.cranfield.ac.uk/handle/1826/11583.

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Microorganisms attachment to the surfaces located in the marine water has become a significant problem. Historically, the antifouling properties of the coatings were achieved by using biocides, which had a negative consequence to the marine environment. Currently, alternative environmental friendly methods are required. This thesis aimed to investigate and produce the antifouling coatings that can be used as potential candidates in the marine industry. In this study, a range of novel polymer nanocomposite coatings was fabricated via the method of solvent and tested based on the strategy of mic
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37

Le, Clech Pierre. "Process configurations and fouling in membrane bioreactors." Thesis, Cranfield University, 2002. http://dspace.lib.cranfield.ac.uk/handle/1826/11336.

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MBR process consists of a suspended growth biological reactor combined with a membrane unit. The widespread of this system for waste water treatment is contained by membrane fouling, which is strongly influenced by three factors: biomass characteristics, operating conditions and membrane characteristics. Fouling control techniques mainly include low-flux operation (sub-critical flux operation) and/or high-shear slug flow aeration in submerged. configuration. Based on the concept of the critical flux (Jo), the flux-step method has been developed to more fully characterise transmembrane pressure
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38

Heinemann, Petra Regina. "The problem of fouling in crossflow microfiltration." Thesis, University of Bath, 1987. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377962.

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39

Cohen, Nathan M. "DC Dielectrophoretic Assisted Anti-Fouling Filtration System." DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/694.

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Filtration processes, whether on the microfluidic, clinical treatment systems, or industrial scale (e.g., point-of-care diagnostics, dialysis, and biopharmaceutical manufacturing, respectively), are often inseparable from membrane clogging (fouling). As a consequence, most, if not all, filtration systems require frequent maintenance to maintain functionality and efficiency. The thesis of this project hypothesizes that Dielectrophoresis can be combined with standard filtration to reduce filter fouling, extending membrane life, and enabling continuous operation. This project investigates a me
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40

Borea, Laura. "Advanced MBR processes for wastewater treatment and energy production." Doctoral thesis, Universita degli studi di Salerno, 2016. http://hdl.handle.net/10556/2491.

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2014 - 2015<br>More stringent standards on water quality along with the shortage of vater resources have led to the development of advanced wastewater treatment processes, in order to ensure the respect of discharge limits and the reuse of trated water... [edited by author]<br>XIV n.s.
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41

Matune, Nicholas J. "Fouling of Air Cooled Condensers On the Air Side." Youngstown State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1338509830.

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42

Zator, Maria Malgorzata. "Membrane fouling characterization by confocal scanning laser microscopy." Doctoral thesis, Universitat Rovira i Virgili, 2009. http://hdl.handle.net/10803/8580.

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En sectores tan diversos como la industria alimentaria, la biotecnología y el tratamiento de aguas residuales, la filtración tangencial con membranas se viene utilizando de forma creciente en la separación, purificación y clarificación de distintas corrientes de proceso que contienen gran variedad de compuestos orgánicos. La limitación principal para el empleo industrial de las técnicas de separación por membranas es el ensuciamiento de éstas. El ensuciamiento se atribuye, de forma general, a la reducción en el diámetro de los poros, a su bloqueo y/o a la formación de un depósito en la super
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43

Giannantonio, David John. "Molecular Characterization of Microbial Communities Fouling Concrete Infrastructures." Thesis, Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24797.

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The objective of this study was to identify and characterize naturally-occurring communities of Bacteria and Fungi fouling the surfaces of concrete structures in Georgia, USA, through the use of culture-independent and culture-dependent approaches. Genomic DNA was extracted and ribosomal RNA genes were PCR amplified from 4 biofouled sites located in or around the cities of Atlanta, Gainesville, LaGrange, and Savannah. Bacterial and fungal community composition was determined by phylogenetic analysis. Molecular analysis revealed five bacterial phyla, and representatives of the phylum Cyanobac
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44

Ye, Yun School of Chemical Engineering &amp Industrial Chemistry UNSW. "Macromolecular fouling during membrane filtration of complex fluids." Awarded by:University of New South Wales. School of Chemical Engineering and Industrial Chemistry, 2005. http://handle.unsw.edu.au/1959.4/33245.

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Macromolecular components, including protein and polysaccharides, are viewed as one type of major foulants in the complex feed membrane filtration systems such as membrane bioreactor (MBR). In this thesis, the mechanisms of macromolecular fouling including protein and polysaccharide in the complex feed solution are explored by using Bovine serum albumin (BSA) and alginate as model solution. During the filtration of BSA and washed yeast with 0.22 ????m PVDF membrane, it was found that the critical flux of mixture solution was controlled by washed yeast concentration while the existence of BSA s
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45

Gironès, i. Nogué Míriam. "Inorganic and polymeric microsieves strategies to reduce fouling /." Enschede : University of Twente [Host], 2005. http://doc.utwente.nl/57485.

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46

Srinivasan, Murugan. "Heat exchanger fouling of some Canadian crude oils." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/5469.

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Fouling refers to deposition of any kind of extraneous material that appears on the surface of process equipment, such as heat exchangers and reactors. This is a major economic penalty to oil refineries and heavy residuum upgrading units, thus creating incentives for a better understanding of fouling mechanisms which underlie methods to mitigate or control fouling. This research was focussed on a comparative study of the fouling tendencies of three sour crude oils supplied by Shell Canada Limited: Light Sour Blend (LSB), Midale (MDL), and Cold Lake (CLK). The experiments were carried out using
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47

Wright, Stephen James. "Heat exchanger fouling in aircraft air-conditioner systems." Thesis, University of Leeds, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.634789.

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The air conditioning heat exchangers of the Airbus A320 are plate wavy fin type. Operational aircraft such as the A320 suffer from failure in commercial service owing to operational fouling and the aim of the research was to investigate the causes of large commercial aircraft air conditioning system failures, attributed to overheating. The aim of the thesis is to research the problems relating to the failure of the Environmental Control System (ECS), and to publish data and findings. The ECS plate fin heat exchangers (PFHE) of live aircraft were examined during hanger maintenance, and later th
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48

Coward, Rebecca L. "Preventing marine biofouling : the fouling-release-coating approach." Thesis, University of Portsmouth, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419043.

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The unwanted build up of fouling organisms on immersed structures has been a problem that has been addressed over the years in many different ways, from tar and pitch on the hulls of vessels to various toxin based ablative coatings and most recently, foul-release coatings that present a non stick surface to which organisms can not adhere strongly. These foul-release coatings have been relatively successful and further investigation into the formulation of siloxane based coatings is a environmentally acceptable and commercially viable concept. The significance of the hydrophilicity of a range o
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49

Moitsheki, Lesego Johannes. "Nanofiltration : fouling and chemical cleaning / Lesego Johannes Moitsheki." Thesis, North-West University, 2003. http://hdl.handle.net/10394/391.

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The challenge of providing developing rural areas in South Africa with sufficient potable water is substantial. North West Province, among others, is water-stressed, semi-arid, and largely rural with a high dependence on groundwater as a strategic resource. Some parts of the province are having poor water quality which ends up affecting households, farming and livestock. The aim of this study is to evaluate the performance of nanofiltration (NF) membranes in detrimental ion (fluoride, nitrate and sulphate) rejection and to monitor fouling on membranes with their subsequent chemical cleaning. F
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50

Lindsay, Hazel M. "Testing community assembly theories in epifaunal fouling communities." Thesis, Edinburgh Napier University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270651.

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