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Dissertations / Theses on the topic 'Emulsion Liquid Membranes'

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Published: 28 May 2022

Last updated: 31 July 2025

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1

Platt, Samantha Helen. "Breakage of water-in-oil emulsions using membranes as a coalescing aid." Thesis, University of Bath, 1999. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301547.

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2

Gupta, Ritika. "Synthesis of Precipitated Calcium Carbonate Nanoparticles Using Modified Emulsion Membranes." Thesis, Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5158.

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The synthesis of precipitated calcium carbonate nanoparticles with the use of double water in oil emulsion has been developed. Restricting the mass of calcium ions present in the system makes it possible to predict particle size precipitated. A model was developed to calculate the concentration required to synthesize a desired particle size. This model took into account a coalescence factor. The coalescence factor is described at the probability of two emulsion droplets, with separate nucleation processes within them, colliding and forming one nucleation process. The Ca2+ ions diffused th

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3

Gilbert, Christopher Donald. "Non-newtonian conversion of type II emulsion liquid membranes-solving long-standing permeability, stability, and swelling problems." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/11746.

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4

Kumar, Vijaya S. "Studies On The Application Of Liquid Membranes For The Removal Of Dissolved Metals From Effluents." Thesis, Indian Institute of Science, 1994. https://etd.iisc.ac.in/handle/2005/134.

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Separation of dissolved metals from aqueous solutions using liquid membrane technology is highly advantageous owing to the degree of separation achieved, efficiency and application potential. In the present investigation four types of liquid membranes - bulk liquid membrane (BLM), emulsion liquid membrane (ELM), electrostatic pseudo liquid membrane (ESPLIM) and unified liquid membrane (ULM) have been extensively studied, for their application in extraction and concentration of dissolved metals from effluents. Experiments were conducted with various metal systems to optimize both system and pro

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Kumar, Vijaya S. "Studies On The Application Of Liquid Membranes For The Removal Of Dissolved Metals From Effluents." Thesis, Indian Institute of Science, 1994. http://hdl.handle.net/2005/134.

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Separation of dissolved metals from aqueous solutions using liquid membrane technology is highly advantageous owing to the degree of separation achieved, efficiency and application potential. In the present investigation four types of liquid membranes - bulk liquid membrane (BLM), emulsion liquid membrane (ELM), electrostatic pseudo liquid membrane (ESPLIM) and unified liquid membrane (ULM) have been extensively studied, for their application in extraction and concentration of dissolved metals from effluents. Experiments were conducted with various metal systems to optimize both system and pro

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6

Gilbert, Christopher Donald. "Non-Newtonian conversion of emulsion liquid membranes in the extraction of lead and zinc from simulated wastewater." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/10911.

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7

Mokhtari, B., and K. Pourabdollah. "Metabolic Fingerprinting of Rat Serum by Nano-baskets and ELM – NMR." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/34968.

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A novel approach for metabolite extraction and fingerprinting was introduced base upon the emulsion liquid membrane-nuclear magnetic resonance (ELM – NMR) technique. The objective of this method is optimizing the fingerprints, minimizing the metabolic variation from analysis, increasing the likelihood differences, and obtaining the maximum extraction yield. Low molecular weight metabolites in rat serum were recovered by ELMs using four nano-baskets of calix [4]-1,3-crowns as emulsifier and carrier. The yields of ELMs were optimized by the method of once at a time. According to the NMR dat

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8

Park, Yonggyun. "Development and Optimization of Novel Emulsion Liquid Membranes Stabilized by Non-Newtonian Conversion in Taylor-Couette Flow for Extraction of Selected Organic and Metallic Contaminants." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11487.

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Extraction processes employing emulsion liquid membranes (ELMs), water-in-oil emulsions dispersed in aqueous phase, have been shown to be highly efficient in removing a variety of organic and inorganic contaminants from industrial wastewaters. As a result, they have been considered as alternative technologies to other more common separation processes such as pressure-driven membrane processes. Unfortunately, a widespread use of the ELM process has been limited due to the instability of emulsion globules against fluid shear. Breakup of emulsions and subsequent release of the internal recepto

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9

Potier, Lydie. "Etude par calorimétrie des changements d'état dans une émulsion multiple E/H/E : application aux.transferts de solvant entre les deux phases aqueuses." Compiègne, 1993. http://www.theses.fr/1993COMP664S.

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Dans le but de mettre en évidence des transferts de matière, nous avons étudié par analyse enthalpique différentielle les changements d'état d'émulsions multiples eau-dans-huile-dans-eau. Ces émulsions E/H/E sont composées de trois phases: une phase aqueuse interne dispersée dans une phase huileuse, elle même dispersée dans une phase aqueuse externe. En raison de cette structure vésiculaire, la phase huileuse joue le rôle d'une membrane liquide, membrane à travers laquelle il peut se produire des transferts de matière si il existe une différence de composition entre les deux milieux aqueux. Co

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10

Bringas, Elizalde Eugenio. "Contribución al diseño de procesos de separación con membranas líquidas selectivas. Tratamiento de aguas subterráneas contaminadas con Cr(VI)." Doctoral thesis, Universidad de Cantabria, 2008. http://hdl.handle.net/10803/10690.

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Este trabajo tiene como objetivo el desarrollo de la metodología de diseño óptimo de procesos de separación con membranas líquidas selectivas en su aplicación a la separación de mezclas multicomponentes con recuperación selectiva del componente de interés. Para ello se ha investigado la separación selectiva y concentración de cromo(VI) presente inicialmente en un acuífero subterráneo contaminado por acción de la actividad industrial desarrollada a nivel superficial y donde a su vez, coexisten otras especies aniónicas competitivas (sulfato y cloruro mayoritariamente) presentes por las propias c

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11

Lizon, Tatiana Gallego. "Cadmium separation from phosphoric acid using the emulsion liquid membrane." Thesis, Imperial College London, 1998. http://hdl.handle.net/10044/1/7634.

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An emulsion liquid membrane (ELM) containing Cyanex 302 has been successfully used for the recovery of cadmium from synthetic phosphoric acid solutions containing 30% wt. P205. The ELM formulation was optimised for high extraction rate and stability. Cyanex 302, and a mixture of NaC1 (3M) and HC1 (1M), were selected from a set of possible reagents and stripping phases, following equilibrium and kinetic experiments in two-phase systems. Under chemical control the rate of Cd2 extraction was pseudo first order with respect to Cd2 and Cyanex 302 concentration. Arlacel C was found to be the most su

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12

Mokhtari, B., and K. Pourabdollah. "Emulsion-Liquid-Membrane Extraction of Alkali Metals by Nano-baskets." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35137.

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Nano-assisted inclusion separation of alkali metals from basic solutions was reported by inclusionfacilitated emulsion liquid membrane process. The novelty of this study is application of nano-baskets of calixcrown in the selective and efficient separation of alkali metals as both the carrier and the surfactant. For this aim, four derivatives of diacid calix[4]-1,3-crowns-4,5 were synthesized, and their inclusionextraction parameters were optimized including the calixcrown scaffold (4, 4 wt%) as the carrier/ demulsifier, the commercial kerosene as diluent in membrane, sulphonic acid (0.2

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13

Chaudhuri, Julian Brajendra. "Kinetic studies on the emulsion liquid membrane extraction of lactic acid." Thesis, University of Reading, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253779.

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14

Pickering, Paul. "Selective extraction of (D)-phenylalanine from aqueous racemic (D/L)-phenylalanine by chiral emulsion liquid membrane extraction." Thesis, University of Bath, 1994. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.481450.

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15

Maxwell, Deborah. "REMEDIATION OF HEAVY METAL CONTAMINATION IN SEDIMENTS: APPLICATION OF IN SITU TREATMENT UTILIZING EMULSIFIED LIQUID MEMBRANE AN." Master's thesis, University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4329.

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Heavy metal contamination of soils, sediments and groundwater presents an ongoing source of hazardous and persistent environmental pollution. How best to remediate these contaminants is the impetus of continuing research efforts. Methods include containment, ex situ and in situ techniques. A successful in situ method utilizing a combination of emulsified liquid membranes, ELM, and zero-valent metal, ZVM, and bimetals has demonstrated impressive heavy metal reduction in 100 ppm solutions of Cd, Cu, Ni, Pb, Cr and U. This promising in situ method has been employed by the Industrial Chemistry Lab

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16

Behaeghel, Amélie. "Etude des transferts de matière (eau/solutés : urée et nacl) à travers trois membranes huileuses." Compiègne, 1997. http://www.theses.fr/1997COMP1044.

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Notre étude fait suite aux travaux réalisés, au laboratoire, sur les émulsions multiples eau-dans-huile-dans-eau. Ces émulsions sont appelées membranes liquides émulsionnées et sont de plus en plus utilisées en tant que procédé de séparation. Elles peuvent également être à l’ origine de procédés de purification et de cristallisation. Notre objectif était d'approfondir la connaissance et la compréhension des phénomènes de transfert de matière à travers les membranes huileuses. Pour cela, nous avons mené trois études qui nous ont permis de tirer des conclusions quant à l'effet sur les transferts

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17

Cervantes, de la rosa Abigail. "Macroscopic modeling in double emulsion systems." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLC056/document.

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Les procédés de séparation à l’aide de membranes liquides sous forme d’émulsions doubles (DE) ont fait l’objet d’un examen approfondi en vue d’applications potentielles dans des domaines tels que la récupération des métaux, la séparation des gaz, l’élimination des composés organiques, l’élimination des polluants et les bioséparations. Les difficultés d’application de ces procédés ne concernent pas le caractère sophistiqué des équipements ou des installations, mais réside plutôt dans une bonne compréhension des phénomènes complexes qui se produisent à l’intérieur de ces systèmes. Depuis leur in

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18

Trevino, Leo. "Les (perfluoroalkyl)alcanes et alcènes : étude du comportement amphiphile dans les systèmes dispersés et applications aux vecteurs d'agents thérapeutiques." Nice, 1993. http://www.theses.fr/1993NICE4700.

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Une famille de (perfluoroalkyl)alcanes et alcènes (structures f(cf2)m(ch2)nh ou f(cf2)mch=ch(ch2)nh ; m=4, 6, 8; n=6, 8, 10, 12) a été synthétisée afin d'étudier une nouvelle approche de stabilisation des émulsions de fluorocarbure à finalité biomédicale. Cette approche consiste en l'addition de ces composés, comme chevilles moléculaires, aux émulsions concentrées en fluorocarbure contenant la lécithine de jaune d'œuf comme tensioactif principal, pour diminuer la tension interfaciale entre la phase fluorocarbure et la phase aqueuse qui conduirait à un système plus stable contre le grossissemen

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19

宋訓文. "Stabilization of Emulsion Liquid Membranes by Interfacial Polymerization." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/41531520435569670468.

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碩士<br>逢甲大學<br>化學工程學系<br>87<br>Emulsion liquid membrane (ELM) is a novel separation system which have functions of separation, concentration and immobilization. However, ELM suffers from the stability problem due to weak mechanical strength and osmotic swelling phenomena. It is our ultimate goal to circumvent this problem by developing an effective stabilization technique. Due to its unique feature, interfacial polymerization is one of the simplest in situ polymerization techniques suitable for the encapsulation of water-immiscible substances by a polymeric shell. The technique invol

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20

Kwo-Ching, Hsieh, and 謝國清. "Study on Continuous Separation Process by Emulsion Liquid Membranes." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/05624119172991831391.

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21

Chen, Chia-Nan, and 陳嘉南. "Separation of Amino Acids Using Non-dispersive Supported and Emulsion Liquid Membranes." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/70137479781688454540.

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碩士<br>元智大學<br>化學工程學系<br>93<br>The recovery and separation of amino acids from aqueous solutions by using a hollow fiber membrane module have been studied in this paper. Due to the zwitterionic character of amino acids, they had specific isoelectric points (pI). Amino acids could exist as the cationic or anionic form by adjusting the pH value less and greater than their isoelectric points in aqueous solutions. Therefore, a cation-exchange carrier, D2EHPA, may be applied to extract anionic forms of amino acids and to separate two amino acids. About the selectivity of binary amino acids, it was f

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22

Yu-Yin and 王郁茵. "Recovery and Separation of Amino Acids from Aqueous Solutions by Emulsion Liquid Membranes." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/48059567471241999749.

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碩士<br>元智大學<br>化學工程研究所<br>89<br>The recovery and separation of amino acids from aqueous solutions by using emulsion liquid membrane had been studied in this research. Due to the zwitterionic character of amino acids, they had their specific isoelectric points (pI). Amino acids could exist as the cationic or anionic form by adjusting the pH value less and greater than the isoelectric points in aqueous solutions. Therefore, a cation-exchange carrier, D2EHPA, may be applied to the extract ion and separation of two amino acids. The emulsification experiments were performed by changing mi

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23

LI, NAN-YAO, and 李南瑤. "Separation and concentration of phenylalanine by emulsion liquid membrane techniques." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/14592381817419508641.

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24

Yang, Fang Ru, and 楊芳儒. "Production of L-Phenylalanine with Aminotransferase Encapulated by Emulsion Liquid Membrane." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/90653249541741935331.

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25

Moyo, Francis, and R. Tandlich. "Optimisation of the emulsion liquid membrane composition and demulsification for rhodium extraction." 2015. http://hdl.handle.net/10962/76743.

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This study was aimed at designing an optimised emulsion liquid membrane (ELM) for the extraction of rhodium from precious metal refinery wastewaters. The demulsification process and the structure of the optimised ELM are reported on. Two optimised ELMs were prepared. The first one contained a 30 % solution of toluene in kerosene as diluent with the following concentrations of the ELM components: 30.000 g/L (w/v) polyisobutylene, 10.870 g/L (m/v) of trioctyl amine and 51.001 g/L (m/v) of SPAN 80. The second ELM contained the same diluent, but the concentrations of the other ELM components in it

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26

Chen, Shi-Min, and 陳世閔. "Effects of Reactive Surfactants on the Encapsulation Efficiency of Emulsion Liquid Membrane." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/78044894726443021482.

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碩士<br>逢甲大學<br>化學工程學所<br>90<br>The objective of this research is to investigate the effects of the reactive surfactants on the encapsulation efficiency of the emulsion liquid membrane（ELM） system. D-glucose was intentionally added into the internal phase in the ELM system as a tracer for its breakage. According to the leakage amount of D-glucose from the internal phase to the external phase, the effects of different reactive surfactants on the stability of the ELM systems were evaluated. Firstly, the effects of oil soluble surfactant （Span 80） and carrier （Aliquat 336） were extentively studi

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27

Lee, Cha Chen, and 李佳虔. "Production of L-Phenylalanine with Phenylalanine Ammonia-Lyase Encapsulated by Emulsion Liquid Membrane." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/45561466718929297030.

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28

Chen, Shuo-Hung, and 陳碩宏. "Effects of Interfacial Polymerization on The Enzyme Activity in Emulsion Liquid Membrane Encapsulation Systems." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/03918339887308854371.

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碩士<br>逢甲大學<br>化學工程學系<br>88<br>Emulsion liquid membrane (ELM) is a novel separatoin system which has functions of separation, concentration and immobilization. Due to its unique feature, ELM was used as a method of immobilization for cell suspension or enzyme solution. Nevertheless, liquid membrane (LM) was suffered by weak mechanical strength and osmotic swelling phenomena which lead to the breakdown of LM and the function of immobilization.To elucidate these problems, a novel method, with characteristics of fast reaction and low energy consumption, called interfacial polymerization was adopte

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29

WU, LIANG CHENG, and 武良正. "The Effects of Swelling and Breakage Phenomena on the Stability of Emulsion Liquid Membrane." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/00602619798532395062.

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碩士<br>逢甲大學<br>化學工程研究所<br>83<br>The stability of emulsion in the emulsion liquid membrane (ELM) system has been known to be significantly influenced by the phenomenon of swelling of emulsion. Significant swelling dilutes the concentration of the substances concentrated in the inner phase, lowers the selectivity of separation,changes the Viscosity of the system and the dispersity of emulsion , and therefore the stability of the emulsion. It has been reported that the swelling of the emulsion

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30

Huang, Kuan Chieh, and 黃冠傑. "Separation and Concentraction of Phenylalanine by Emulsion Liquid Membrane Technique in a RDC Column." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/69141677636118682968.

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碩士<br>逢甲大學<br>化學工程研究所<br>81<br>Most of the study on the emulsion liquid membrane (ELM) separation technologyhas been confined to small batch operation systems and there has been littleresearch on the continuous pilot-plant scale test. Investigation of the continuous ELM separation process on pilot-plant scale is required to develop the practical application of ELM. In this research, the extraction and concentraction of phenylalanine using ELM separation technique in a continuous countercurr

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31

Yang, Jane Fu, and 楊正福. "Separation and Concentration of Phenylalanine by the Continuous CSTR Emulsion Liquid Membrane Separation Process." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/42298868550661440334.

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碩士<br>逢甲大學<br>化學工程研究所<br>81<br>The extraction and concentration of phenylalanine by the continuous CSTR Emulsion Liquid Membrane (ELM) separation process has been thoroughly studied in this research.A mass transfer model for analysing the extraction of phenylalanine by liquid surfactant membrane is also presented .The model assumes that the extraction and stripping reactions are reversible and the reaction equilibrium to exist in both the internaland the external interfaces . The scheme for

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32

Wang, Hung-Wen, and 王宏文. "Effects of Emulsion Liquid Membrane Encapsulation System on The Activity of L-phenylalanine Producing Enzymes." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/36696479855145424757.

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碩士<br>逢甲大學<br>化學工程研究所<br>85<br>The objective of this research is to investigate the effect of emulsion liquid membrane ( ELM ) encapsulation system on the activity of L-phenylalanine-produced enzymes. Two kinds of enzymes , aromatic amino acid amino transferase ( AAT ) and L-phenylalanine ammonia-lyase(PAL)，are adopted in the study . The enzymes o f AAT and PAL are biologically synthesized form fermentation of E.coli , genetically - modified E.coli (VJS632/ pTYR100,VJS676/pASP400 )

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33

ZHAN, ZHI-JIE, and 詹志潔. "Emulsion liquid-membrane separation technology and its application in ammonia removal from dilute aqueous solution." Thesis, 1987. http://ndltd.ncl.edu.tw/handle/92704279436678503404.

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34

Hao, Liu Tang, and 劉唐豪. "Effect of Emulsion Liquid Membrane Encapsulation System on The Activity of D-hydroxyphenylglycine Producing Enzyme." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/96845092992453743764.

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碩士<br>逢甲大學<br>化學工程學系<br>89<br>Abstract The objective of this research is to investigate the stability and enzymatic reactivity of D-hydroxyphenylglycine-produced enzyme system which is encapsulated by Emulsion Liquid Membrane（ELM）. The investigation is studied under experimental discussion followed by theoretical analysis. Both non-polymerized ELM system and polymerized ELM system were adopted in experimental studies for comparison. The stability and encapsulation efficiency of emulsion drops were examined by monitoring the leakage rate of Li+ from the internal phase to t

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35

ZHENG, WEN-HUA, and 鄭文華. "Removal copper ion from aqueous solution by droplet column type emulsion liquid membrane separation process." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/57411425386694392608.

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36

Huang, Shu-Chuan, and 黃淑專. "Extraction of Cd2+ Ions and Synthesis of CdS Nanoparticles by Using Emulsion Liquid Membrane System." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/82229804913837904827.

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碩士<br>逢甲大學<br>化學工程學所<br>90<br>Abstract Emulsion liquid membrane (ELM) system is a novel technology with characteristics of separation, concentration and immobilization. It has been widely investigated by many researchers as an advanced extraction technique and is considered to have potential applications in the extraction and concentration for heavy metal ions. However, the stability and the extraction efficiency of ELM are suffered from mechanical breakage and osmotic swelling and the problems are still open to study. Recently, the nanocomposite materials are of widespread importance and the

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37

丁進國. "The Application of Liquid-Phase Sepaaration Using Microporous Ceramic Membraned - The Sepatation of Oil/Water Emulsion." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/70735585454838322253.

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碩士<br>國立臺灣大學<br>化學工程學研究所<br>86<br>The objective of this project was to study the oil/water emulsion separation using porous ceramic membranes. Besides organic-solvent resistance, the hydrophilic surface of ceramic membrane could be applied to oil/water separation. The motivation of the study was to concentrate teh oil content of waste oil/water effluent by ceramic membrane, thus cut down the amount of produced waste water. And, the oil content of permeate could be reduced to meet the environmental regulation. 　　The emulsion systems, kerosene/water and n-dodecane/water were prepared by a homoge

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38

Su, Yu-Sheng, and 蘇煜昇. "A Study on the Extraction of Zinc(II) Ions and Synthesis of Zinc Sulfide Particle by Using Emulsion Liquid Membrane System." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/mrg5y2.

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碩士<br>國立臺北科技大學<br>化學工程所<br>94<br>The emulsification liquid membrane system is a noble separation method it can be used for separation, concentration and solidification, etc.. It finds eotentiol application in recovery of heavy metal ion, extraction. But emulsion liquid membrane will break due to swelling, which in turn reduces liquid membrane stability and extract efficiency. This study discussed how to increase the extraction efficiency, of emulsion liquid membrane system and the use of emulsion liquid membrane for synthesizing ZnS nanometer. Extract the experiment part, change the active pha

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