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Tesi sul tema "Membrane filters"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 28 luglio 2024

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1

Li, Hong-yu Graduate School of Biomedical Engineering Faculty of Engineering UNSW. "Mechanism studies for crossflow microfiltration with pulsatile flow." Awarded by:University of New South Wales. Graduate School of Biomedical Engineering, 1995. http://handle.unsw.edu.au/1959.4/17858.

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The mechanism of how pulsatile flow affects flux behaviour in crossflow micro-filtration was investigated. The effects of pulsatile flow were sub-divided into shear effects and backflushing effects. A servo-valve hydraulic piston pump was applied to generate pulsatile flows in the membrane module with particular waveforms. Four types of fluid pulsation with specific flow-rate and pressure waveforms were produced for experimental tests. Two parameters, /dVcf\dt/ maxand Pmin, were examined independently for their effect during pulsatile flow, which was estimated by comparing the cake resistance

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2

Deng, Shi. "Development of a coarse pore membrane bioreactor with in-situ membrane cleaning /." View abstract or full-text, 2007. http://library.ust.hk/cgi/db/thesis.pl?EVNG%202007%20DENG.

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3

Borkar, Neha. "Characterization of microporous membrane filters using scattering techniques." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1289943937.

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4

Nel, A. M. "Removal of organic foulants from capillary ultrafiltration membranes by use of ultrasound." Thesis, Link to the online version, 2006. http://hdl.handle.net/10019/1997.

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5

Wong, Hiu Man. "Removal of pathogens by membrane bioreactor : removal efficiency, mechanisms and influencing factors /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202004%20WONGH.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2004.<br>Includes bibliographical references (leaves 93-102). Also available in electronic version. Access restricted to campus users.

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6

Parameshwaran, Kathiravelu Chemical Sciences &amp Engineering Faculty of Engineering UNSW. "Enhancing membrane processes for water reuse." Awarded by:University of New South Wales. Chemical Sciences & Engineering, 2008. http://handle.unsw.edu.au/1959.4/41495.

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The study reported here was aimed at optimising the microfiltration (MF) membrane process applied to water reclamation. Polypropylene hollow fibre membrane (0.2 ??m) with high pressure backwahing was mainly used in this study. To obtain secondary effluent for microfiltration a biological treatment (UASB/SBR) was applied to brewery effluent. It was identified that loading at a rate below 14 kg COD/kLd will ensure the stable performance of UASB. An initial energy balance of the system (Biological and MF) shows a plant treating brewery effluent (4000 mg/L COD) could yield a net energy of 2.5 kWh

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7

Pang, Shing Kin. "Development of a low-cost membrane with used non-woven material for wastewater treatment /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202006%20PANG.

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8

Bahia, Adilson Silva [UNESP]. "Tratamento de efluente de curtume por biofiltro aerado Submerso pré-tratado com microfiltro de membrana." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/111149.

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Made available in DSpace on 2014-12-02T11:16:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-03-11Bitstream added on 2014-12-02T11:20:49Z : No. of bitstreams: 1 000797267.pdf: 1871218 bytes, checksum: 71b27655313be97d91cb308d5fbe6ed7 (MD5)<br>Os efluentes do processo de industrialização do couro em curtumes apresentam, além de elevadas concentrações de matéria orgânica em termos de Demanda Química de Oxigênio (DQO) e Demanda Bioquímica de Oxigênio (DBO), altas concentrações de sólidos totais, suspensos e sulfeto, o que torna o tratamento destes efluentes problemático. O objetivo do

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9

Bahia, Adilson Silva. "Tratamento de efluente de curtume por biofiltro aerado Submerso pré-tratado com microfiltro de membrana /." Ilha Solteira, 2014. http://hdl.handle.net/11449/111149.

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Orientador: Tsunao Matsumoto<br>Banca: Liliane Lazzari Albertin<br>Banca: Luis Fernando Rossi Léo<br>Resumo: Os efluentes do processo de industrialização do couro em curtumes apresentam, além de elevadas concentrações de matéria orgânica em termos de Demanda Química de Oxigênio (DQO) e Demanda Bioquímica de Oxigênio (DBO), altas concentrações de sólidos totais, suspensos e sulfeto, o que torna o tratamento destes efluentes problemático. O objetivo do presente trabalho foi avaliar a biotratabilidade dos efluentes de curtumes por meio do tratamento por Biofiltro Aaerado Submerso (BF) após pré-tr

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10

Li, Jianxin. "Real-time investigation of fouling phenomena in membrane filtrations by a non-invasive ultrasonic technique." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/53027.

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Thesis (PhD)--Stellenbosch University, 2002.<br>Some digitised pages may appear illegible due to the condition of the original hard copy.<br>ENGLISH ABSTRACT: Membrane fouling is universally accepted as one of the most critical problems limiting the wider application of membranes in liquid separations. The development and utilization of a suitable non-invasive technique for the on-line monitoring of fouling in industrial and laboratory applications may enable the effectiveness of fouling remediation and cleaning strategies to be quantified. The overall objective of this research is to d

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11

Melamane, Xolisa. "Cleaning of fouled membranes using enzymes from a sulphidogenic bioreactor." Thesis, Rhodes University, 2004. http://hdl.handle.net/10962/d1015764.

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Maintenance of membrane performance requires inevitable cleaning or defouling of fouled membranes. Membrane cleaning using enzymes such as proteases, lipases, α-glucosidases from a sulphidogenic bioreactor was investigated. At first, dilute and concentrated enzyme extract were prepared form the sulphidogenic pellet. Enzyme assays on 0.5 % azocaisen, 1 % triacetin and 1 mg/ml ρ-nitrophenyl-α-D-glucopyranoside were performed using the concentrated enzyme extract (0 – 200 mg/ml). For membrane fouling, an abattoir effluent was obtained from Ostritech Pty (Ltd), Grahamstown, South Africa. The efflu

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12

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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13

Yu, Di. "Inorganic mesoporous membrane for water purification applications synthesis, testing and modeling /." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1162323090.

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14

Poletto, Patrícia. "Caracterização de membranas de poliamida 66 preparadas pelo método de inversão de fases." reponame:Repositório Institucional da UCS, 2010. https://repositorio.ucs.br/handle/11338/573.

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Neste trabalho foram preparadas membranas de poliamida 66 (PA 66) pelo método de inversão de fases (IF) e caracterizadas com o objetivo de verificar sua possível aplicação em processos de separação. As membranas de PA 66 foram preparadas utilizando dois solventes diferentes, ácido fórmico (AF) e ácido clorídrico (HCl) e água como não-solvente. As membranas preparadas na forma de filmes (não suportadas) foram caracterizadas por Espectroscopia de Infravermelho com Transformada de Fourier (FT-IR) e calorimetria exploratória diferencial (DSC), onde os resultados mostraram que a estrutura química e

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15

Maskan, Fazilet Chemical Engineering &amp Industrial Chemistry UNSW. "Optimization of reverse osmosis membrane networks." Awarded by:University of New South Wales. Chemical Engineering and Industrial Chemistry, 2000. http://handle.unsw.edu.au/1959.4/18790.

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The optimization of a reverse osmosis (RO) system includes optimization of the design of the individual membrane modules, the system structure and the operating conditions of the system. Most previous studies considered either the optimal design of individual modules only or optimization of system structure and operating conditions for fixed module dimensions. This thesis developed a method to simultaneously optimize the module dimensions, system structure and operating conditions. The method comprised rules for generating a general superstructure for an RO system given the number of modules a

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16

Barbe, Aron Mervyn. "The fouling of hydrophobic, microporous membranes used in osmotic distillation." Thesis, Queensland University of Technology, 2001.

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17

Wang, Li. "Internal surface coating and photochemical modification of polypropylene microfiltration membrane." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ30119.pdf.

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18

Ramli, Nor Hanuni. "Ultrafiltration of polydisperse colloidal silica." Thesis, Swansea University, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.678552.

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19

Biron, Dionisio da Silva. "Preparação e caracterização de membranas impregnadas com nanopartículas de prata e cobre e sua aplicação na desinfecção da água." reponame:Repositório Institucional da UCS, 2016. https://repositorio.ucs.br/handle/11338/1181.

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Submitted by Ana Guimarães Pereira (agpereir@ucs.br) on 2016-06-21T16:37:36Z No. of bitstreams: 1 Dissertacao Dionisio da Silva Biron.pdf: 4968193 bytes, checksum: b3110cb668f93c8ff3069f7d944b6668 (MD5)<br>Made available in DSpace on 2016-06-21T16:37:36Z (GMT). No. of bitstreams: 1 Dissertacao Dionisio da Silva Biron.pdf: 4968193 bytes, checksum: b3110cb668f93c8ff3069f7d944b6668 (MD5) Previous issue date: 2016-06-21<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, CAPES

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20

Camargo, Liliane Rodrigues 1981. "Formação de biofilmes microbianos em membranas poliméricas de poliamida e polietersulfona e seu controle por agentes sanitizantes." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/255788.

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Orientadores: Arnaldo Yosteruy Kuaye, Luiz Antonio Viotto<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-19T05:42:17Z (GMT). No. of bitstreams: 1 Camargo_LilianeRodrigues_M.pdf: 1091941 bytes, checksum: 60be1838dcd0800329468f3b7825e521 (MD5) Previous issue date: 2011<br>Resumo: O grande consumo de águas minerais tem alavancado muitos estudos de relação caracterização microbiológica, nas mais diversas regiões brasileiras. Trabalhos revelam que a grande maioria das águas brasileiras envasadas e águas de

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21

Mbanjwa, Mesuli Bonani. "Ultrasonic measurement of membrane fouling during microfiltration of natural brown water." Thesis, Cape Peninsula University of Technology, 2007. http://hdl.handle.net/20.500.11838/890.

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Thesis (MTech (Engineering))--Cape Peninsula University of Technology, 2007<br>The removal of the colour-eausing natural organic matter (NOM) from natural brown water (NSW) to be used for drinking purposes is of paramount importance. One of the methods available to remove NOM from NSW is the use of pressure-driven membrane separation systems. One of the limitations in efficiently applying membrane filtration in the treatment of NOM-eontaining water is membrane fouling that is caused by foulants, such as NOM, that accumulate on the membrane surface and in the membrane pores. Microfiltrat

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22

Gregory, Sean. "Development of instrumentation for the investigation of surface regeneration for candle filters." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=2238.

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Thesis (M.S.)--West Virginia University, 2001.<br>Title from document title page. Document formatted into pages; contains xii, 102 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 80-81).

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23

Peterson, Emily Cassidy. "Shear-induced microstructure in hollow fiber membrane dopes." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50245.

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Hollow fiber membranes offer the opportunity to dramatically reduce the energy required to perform gas separations in the chemical industry. The membranes are fabricated from highly non-Newtonian precursor materials, including concentrated polymer solutions that sometimes also contain dispersed particles. These materials are susceptible to shear-induced microstructural changes during processing, which can affect the characteristics of the resulting membrane. This thesis explores several shear-related effects using materials and flow conditions that are relevant for fiber spinning. The findings

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24

Neal, Peter Ross Chemical Sciences &amp Engineering Faculty of Engineering UNSW. "An examination of the nature of critical flux and membrane fouling by direct observation." Awarded by:University of New South Wales. School of Chemical Sciences and Engineering, 2006. http://handle.unsw.edu.au/1959.4/30584.

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Securing water in the right quantities at the right quality for the right price is a major issue around the world. Membranes are making an increasingly important contribution to meeting this need; however their performance is limited by fouling. This thesis reports on an investigation into the fouling of systems related to water treatment using the Direct Observation Through the Membrane (DOTM). The investigation focused on the measurement of critical flux and observation of particle behaviour under a variety of conditions and for a number of different particles. The range of meanings attribut

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25

Malherbe, Gideon Francois. "Development and application of ultrafiltration and reverse osmosis membranes." Thesis, Cape Technikon, 1993. http://hdl.handle.net/20.500.11838/908.

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Thesis (Masters Diploma (Technology)--Cape Technikon, Cape Town,1993<br>Various experimental and established membranes were tested on industrial effluents. Ultrafiltration, reverse osmosis and nanofiltration membranes were used in various applications. Research was done on aspects such as the cleaning of fouled membranes, production quality control and process development. Polyvinyl alcohol ultra-thin-film reverse osmosis membranes were manufactured for the desalination of brackish water to a potable standard. The membranes were manufactured in the tubular configuration. Experimental ul

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26

Shugman, Emad Musbah. "Cleaning of micro- and ultrafiltration membranes with infrasonic backpulsing." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/3053.

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Thesis (MScEng (Process Engineering))--University of Stellenbosch, 2009.<br>ENGLISH ABSTRACT: Membrane fouling is universally considered to be one of the most critical problems in the wider application of membranes in filtration separation. Fouling is caused by the deposition of particles not only on the surface of the membrane, but also inside the membrane pores, which reduces permeate flux and leads to a reduction of the efficiency and the longevity of the membrane. The backpulsing cleaning method can be used to remove deposited foulants from the surface of the membrane, without having

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Hamann, Martin Louis. "System hydrodynamics to reduce fouling of air-sparged immersed flat-sheet microfiltration membranes." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5206.

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Thesis (MScEng (Process Engineering))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: Immersed membrane systems hold many operational and environmental advantages in biological treatment of wastewater. However, immersed membrane filtration have only found application in niche markets to date because of higher capital and operating costs associated with membrane fouling. But with capital costs on the decline as membranes become less expensive, immersed membrane systems are increasingly considered as an attractive alternative to conventional treatment processes. Operating costs rema

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Beauchamp, Nicolas. "Methods for estimating reliability of water treatment processes : an application to conventional and membrane technologies." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/2434.

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Water supply systems aim, among other objectives, to protect public health by reducing the concentration of, and potentially eliminating, microorganisms pathogenic to human beings. Yet, because water supply systems are engineered systems facing variable conditions, such as raw water quality or treatment process performance, the quality of the drinking water produced also exhibits variability. The reliability of a treatment system is defined in this context as the probability of producing drinking water that complies with existing microbial quality standards. This thesis examines the concept o

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29

Zhou, Fangbin. "Novel Pervaporation for Separating Acetic Acid and Water Mixtures Using Hollow Fiber Membranes." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7154.

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Commercial pure terephthalic acid (PTA) manufacturing generates process streams mainly containing acetic acid (HAc) and water. A large financial incentive exists to replace the costly and energy intensive distillation column used to recycle HAc-water mixtures. This work focuses on the development of pervaporation technology to separate HAc-water mixtures using a hollow fiber-based membrane unit. Currently a 250 m outer diameter Matrimid® hollow fiber is used in industry for gas separation. Due to the difference between gas and liquid separations, the fiber performance associated with high flu

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Shi, Shaojie. "A Whole Blood/Plasma Separation Lab Chip using Hetero-packed Beads and Membrane Filters for Point-of-Care Test (POCT)." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1613750415006395.

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Lee, SeungJin. "Fouling characteristics of ceramic microfiltration and ultrafiltration membranes during surface water treatment." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/49094.

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Ceramic membrane processes are a rapidly emerging technology for water treatment, yet virtually no information on the performance and fouling mechanisms is available to the industry. Ceramic microfiltration of model feed solutions and a synthetic river water was examined, and a systematic comparison with polymeric counterpart was performed. The results suggested that the models which have been applied to polymeric membranes agreed well with the ceramic membrane filtration data. The fouling was characterized by the initial pore blocking mechanism and transition to the cake filtration mechanism

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32

FLEISCHMAN, GREGORY JOSEPH. "FLUID FILTRATION FROM CAPILLARY NETWORKS (MICROCIRCULATION, MATHEMATICAL MODELING)." Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/187998.

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A mathematical model has been developed which describes the fluid exchange from a capillary network of realistic topology, and calculates the spatial distribution of extravascular pressure. In this model, the capillaries are represented by a superposition of sources and sinks, resulting from a D'Arcy's Law description of flow in tissue of uniform fluid conductivity. The combination of this representation and Starling's Hypothesis, which relates the forces influencing transmural fluid exchange, yields an integral equation of the second kind which is solved numerically for the source strength di

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Nakanishi, Simone Coelho. "Utilização dos componentes lignocelulósicos do bagaço de cana-de-açúcar para produção de membranas." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/97/97131/tde-20082013-102435/.

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Pensando em um melhor aproveitamento para o excedente do bagaço de cana, esse trabalho tem como objetivo a obtenção de membranas de acetato de celulose composta com ligninas oxidadas, ambos isolados do bagaço da cana. Para tal, os componentes macromoleculares do bagaço foram separados, aplicando-se um pré-tratamento de explosão a vapor para retirada da parte hemicelulósica e um tratamento com hidróxido de sódio para a separação da lignina e obtenção da polpa bruta de celulose. Essa polpa foi branqueada e acetilada e, posteriormente, foram sintetizadas membranas deste acetato de celulose, incor

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34

Otto, Dietmar Norman. "The effect of forward flushing, with permeate, on gypsum scale formation during reverse osmosis treatment of CaSO4-rich water in the absence of anti-scalant." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95887.

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Thesis (MEng) -- Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: When desalinating brackish water by reverse osmosis (RO) or other techniques, high overall water recoveries are essential to minimize brine production and the associated disposal costs thereof. As the overall water recovery increases, concentrations of sparingly soluble salts (e.g. barium sulphate, calcium sulphate) reach levels above saturation, especially near the membrane surface, drastically increasing the scaling propensity. Antiscalants are typically dosed into the feed water to prevent such scaling during RO desalinati

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Soares, Robson de Miranda. "Membranas suportadas de alumina, obtidas pelo método da sedimentação gravitacional." Universidade de São Paulo, 1998. http://www.teses.usp.br/teses/disponiveis/88/88131/tde-10092008-110844/.

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Este trabalho trata da preparação de membranas suportadas em substratos com alta permeabilidade, alta porosidade e razoável resistência mecânica., pelo método da sedimentação gravitacional. Os substratos foram obtidos através da prensagem de composições contendo poli(metacrilato de metila) e ácido esteárico dissolvidos no dicloro metano e alumina APC-SG (d50 = 3 &#956m ) calcinada a 1600&#176C durante 1h. As partículas de alumina após calcinação são classificadas em peneiras da série Tyler e utilizadas aquelas cuja distribuição se encontravam na faixa granulométrica de 250 a 500 &#956m. Os sub

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Попова, М. Е., О. О. Салій та Г. В. Тарасенко. "Розробка стадії фільтрації сироватки як етап отримання депротеїнізованого гемодеривату крові телят". Thesis, Національний фармацевтичний університет, 2020. https://er.knutd.edu.ua/handle/123456789/17144.

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Плазма крові тварини – багатокомпонентний біологічний матеріал, що складається з сотень біохімічних сполук, деякі з яких ще повністю не досліджено. Метою наших досліджень було розробка та визначення критичних параметрів стадії фільтрації сироватки як одного з технологічних етапів отримання депротеінізованого гемодеривату крові телят. Доведено, що застосування мембранних фільтрів з нейлону на стадії передфільтрації є недоцільним. Мембрани з матеріалу PES забезпечують процес фільтрації сироватки крові КРС, обрані фільтри сумісні з досліджуваною сировиною. Встановлено, що використання фільтруваль

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Fradin, Benoit. "Fouling of microfiltration membranes for the dewatering of waste inorganic slurries." Thesis, University of Bath, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311249.

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Costa, Thiago Ranzani da. "Técnicas analíticas para autópsia de membranas de osmose reversa." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/42/42132/tde-20032012-162030/.

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Abstract (sommario):

Sistemas de membranas filtrantes, principalmente os de osmose reversa, estão sendo cada vez mais utilizados em diversos seguimentos de empresas (farmacêutica, tratamento de água, alimentícia e química), devido à diminuição do preço dos elementos filtrantes e da alta qualidade do produto obtido. Apesar do preço dos elementos de osmose reversa terem caído nos últimos tempos, a substituição destes continua sendo o fator mais dispendioso de um sistema de osmose reversa. A autópsia de membranas é uma técnica utilizada para investigar a causa que levou à colmatação de um elemento, contribuindo no me

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Zablonsky, Joana Rupprech. "Avaliação da remoção de cianobactérias e cianotoxinas de ambientes eutrofizados por coagulação e membranas filtrantes." Universidade Tecnológica Federal do Paraná, 2012. http://repositorio.utfpr.edu.br/jspui/handle/1/344.

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Capes<br>A eutrofização atinge diversos reservatórios de abastecimento de água, causando problemas principalmente da ordem operacional e comprometimento da qualidade da água para a população. Algumas tecnologias de tratamento de água passam por um processo de aperfeiçoamento e outras surgem para melhorar a eficiência do tratamento. Este trabalho teve por objetivo avaliar a remoção de cianobactérias e cianotoxinas por meio de coagulação com Moringa oleifera, seguida de microfiltração e nanofiltração. Sendo assim a primeira etapa do trabalho foi o cultivo em laboratório da cianobactéria Microcys

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Turkson, Abraham K. "Electro-ultrafiltration with rotating dynamic membranes." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=72036.

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In axial electrofiltration, a DC electric field is imposed between a rotating inner cylinder and a stationary outer cylinder giving rise to four mechanisms which act to minimize solute accumulation at the filter surface: turbulence, centrifugal force, electrophoresis and shear stress which removes solute aggregates.<br>Four dynamic membranes, Zr(IV) oxide, calcium oleate, poly-2-vinylpyridine and cadmium sulfide, were used to filter bovine serum albumin (BSA) in a disodium phosphate solution at pH = 8 and Prussian blue in distilled water. Prussian blue is a particle of 0.01(mu)m diameter with

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41

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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Jha, Mayank Shekhar. "Diagnostic et Pronostic de Systèmes Dynamiques Incertains dans un contexte Bond Graph." Thesis, Ecole centrale de Lille, 2015. http://www.theses.fr/2015ECLI0027/document.

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Cette thèse développe des approches pour le diagnostic et le pronostic de systèmes dynamiques incertains en utilisant la technique de modélisation Bond Graph (BG). Tout d'abord, une représentation par intervalles des incertitudes paramétriques et de mesures est intégrée à un modèle BG-LFT (Linear Fractional Transformation). Une méthode de détection robuste de défaut est développée en utilisant les règles de l'arithmétique d'intervalle pour la génération de seuils robustes et adaptatifs sur les résidus nominaux. La méthode est validée en temps réel sur un système de générateur de vapeur.Deuxièm

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Nipprasch, Dirk. "Zeolithische Filter und Membranen in der Gassensorik." [S.l. : s.n.], 2002. http://www.gbv.de/dms/ilmenau/toc/356752046.PDF.

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44

Gregg, Andrea. "The application of nanofibrous membranes with antimicrobial agents as filters." Kansas State University, 2010. http://hdl.handle.net/2097/6822.

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Master of Science<br>Department of Architectural Engineering and Construction Science<br>Julia A. Keen<br>Nanofibers are classified as fibers less than 1 micrometer in diameter. These fibers can be layered to form nanofibrous membranes, and these membranes offer great potential in the filtration industry. The membranes' smaller fiber diameters and pore sizes permit such filters to filter out more and smaller particulate. Additionally, antimicrobial agents can be incorporated into the membrane to inhibit fungal and bacterial growth on the membrane’s surface. This report evaluates nanofibrou

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45

Van, Duyne Scott A. "Digital filter applications to modeling wave propagation in springs, strings, membranes and acoustical space /." May be available electronically:, 2007. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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Tumuluri, Uma. "Nonlinear State Estimation in Polymer Electrolyte Membrane Fuel Cells." Cleveland State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=csu1231961499.

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47

Michaels, W. C. "Microheterogeneous solid polymer electrolyte (SPE) membranes for electrocatalysis." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52934.

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Dissertation (Ph.D.)--Stellenbosch University, 2002.<br>ENGLISH ABSTRACT: The deposition of platinum catalyst on cation-exchange membranes was achieved by a counter diffusion deposition method known as the Takenaka- Torikai method. The morphology of the platinum catalyst on the membranes were controlled by varying the conditions of the platinum deposition process, such as, temperature, type of reducing agent and concentration of the platinic acid solution. The effect of the sonication of platinic acid solution and the pre-treatment of membranes on the morphology of a platinum catalyst wa

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48

Feitosa, Natália dos Reis. "Desempenho de meios filtrantes na remoção de partículas nanométricas de aerossóis." Universidade Federal de São Carlos, 2009. https://repositorio.ufscar.br/handle/ufscar/4021.

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Made available in DSpace on 2016-06-02T19:56:35Z (GMT). No. of bitstreams: 1 2373.pdf: 7764902 bytes, checksum: 711e8da93c1f36cc76df511c9897a671 (MD5) Previous issue date: 2009-03-12<br>Universidade Federal de Sao Carlos<br>The interest of studies on the development of techniques for removal of particles in the nanosized scale was promoted by concern about air quality and human health, in addition to restrictions on the control of ultrafine particles, wich are more intransigent by environmental laws. Additionally, the increasing application of nanoparticles in various areas of science and te

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Zappulla, Antonino. "Filtrazione tangenziale con membrane ceramiche statiche e dinamiche." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/15665/.

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In questa tesi vengono descritti due impianti di filtrazione tangenziale con membrane ceramiche statiche e dinamiche, in grado di filtrare prodotti con un’elevata percentuale di solidi sospesi. Quest’ultimi sono stati confrontati con il tradizionale impianto di filtrazione rotativa sottovuoto presso la Cantina Forlì Predappio durante l’annata 2017. I modelli di filtro tangenziale sono stati testati utilizzando i prodotti comunemente lavorati con i filtri a tamburo, ovvero mosto termomacerato e fondi di chiarifica per decantazione statica provenienti da vino rosso. Il confronto con il tradizion

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Silva, Denilton da. "Estudo da recuperação de lignossulfonatos de baixa massa molar por nanofiltração." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266200.

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Orientador: Leila Peres<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica<br>Made available in DSpace on 2018-08-11T09:27:31Z (GMT). No. of bitstreams: 1 Silva_Deniltonda_D.pdf: 3140539 bytes, checksum: 167c6095412deb4ab1d9dd96d26efcb7 (MD5) Previous issue date: 2007<br>Resumo: Na indústria de papel e celulose os processos de separação por membranas, como a ultrafiltração (UF) e a nanofiltração (NF), são utilizados para a recuperação de diversas espécies presentes nos resíduos da digestão da madeira que são atrativos para outras aplicações, tais como a

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