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Dissertations / Theses on the topic 'Column and Separation Efficiency'

Author: Grafiati

Published: 3 June 2025

Last updated: 20 July 2025

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1

Jung, Stephanie [Verfasser], and Ulrich [Akademischer Betreuer] Tallarek. "Microchip HPLC: Experimental investigation of separation efficiency, column characteristics, and coupling with mass spectrometry / Stephanie Jung. Betreuer: Ulrich Tallarek." Marburg : Philipps-Universität Marburg, 2012. http://d-nb.info/1028072635/34.

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2

Hara, Takeshi [Verfasser]. "Study on preparation and characterization of monolithic silica capillary columns for high separation efficiency in high performance liquid chromatography / Takeshi Hara." Gießen : Universitätsbibliothek, 2013. http://d-nb.info/1064991351/34.

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3

Arfaie, Mehdi. "Pressure transient analysis including column separation and behaviour of long pipelines." Thesis, University of Newcastle Upon Tyne, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.330263.

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4

Guzman, Francisco J. "Separation of Colloidal Particles in a Packed Column using Depletion Forces." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/34831.

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Depletion forces were used to separate an equinumber density binary dispersion of 1.5 and 0.82 Âµm polystyrene sulfate (PS) particles. Experiments consisted of injecting a pulse of a binary dispersion of PS particles into the inlet of a packed bed of 0.5 mm silica collector beads. Prior to injection, a carrier fluid of either KCl and KOH electrolyte or a silica nanoparticle dispersion was flowing through the column at steady state. When the carrier fluid was a dispersion of silica nanoparticles, the ratio of PS particles in the column outlet would change from 1:1 big to small particles to slig

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5

Brock, Patricia C. (Patricia Charlene). "A New LC Column for the Separation and the Quantitation of Nucleotides." Thesis, North Texas State University, 1987. https://digital.library.unt.edu/ark:/67531/metadc500813/.

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A new column, Dionex AS4A, (polystyrenedivinylbenzene matrix) used for the separation of ribonucleotides and deoxyribonucleotides for the first time, and previously used for ion analysis was found superior to conventional silica columns because it separates ribonucleotides and deoxyribonucleotides. Resolution of dGTP was not possible with the Dionex column and CTP and GDP often co-eluted. Using conventional silica columns, monophosphates separated from diphosphates and diphosphates from triphosphates. Using the new Dionex column resolves all three simultaneously. The Dionex column resolved nuc

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6

Yu, Shaning. "Particle collection in a flotation column." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66002.

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7

Steffens, Marc J. "Development of an electrostatically assisted solvent extraction column." Thesis, Curtin University, 2011. http://hdl.handle.net/20.500.11937/1934.

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Solvent extraction (SX) is the only commercially viable hydrometallurgical separation and purification technique for a range of metals that allows high product throughput and consistently high recoveries. After over 50 years of commercial application, however, limitations inherent to the mechanical agitation used within the most widely used commercial SX contactor – the mixer-settler – have become apparent. It is now generally accepted that mechanical agitation results in regions of high shear within the mixer, which favours the formation of crud, non-uniform droplet sizes and the formation of

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8

Ng, C. K. S. "Optimal design, operation and control of sequential multi-column chromatography for separation of biomolecules." Thesis, University College London (University of London), 2014. http://discovery.ucl.ac.uk/1419846/.

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The increasingly stringent regulatory requirements on the quality and cost-effectiveness of biopharmaceuticals as well as the escalating upstream titre are placing considerable pressure on downstream bioprocessing. In particular, batch chromatography is fast becoming the process bottleneck due to its limited capacity and expensive operation. Recent developments in multi-column counter-current chromatography (MCC) for the separation of biomolecules have demonstrated the potential to overcome these limitations. However, the uptake of MCC processes by the biopharmaceutical industry is hindered by

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9

Kashada, Mohamed Abdulsalam. "Modelling of unsteady pipe flow with "liquid column separation" (water hammer induced transient cavitation)." Thesis, University of Newcastle upon Tyne, 2017. http://hdl.handle.net/10443/4012.

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Understanding of waterhammer pressure transients in liquid-filled pipelines and their computational (numerical) modelling as unsteady one-dimensional flow is well established in the literature and engineering practice. However, for the particular issue of the potential for low transient pressure to initiate a change of phase or release of dissolved gases, leading to the phenomenon of localised transient cavitation known as liquid column separation, there is not yet a consensus on the reliability of the various numerical models that have been proposed in the literature. To contribute to further

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10

Han, Tian. "Flow cell separation in fluctuating g-field." Thesis, Brunel University, 2015. http://bura.brunel.ac.uk/handle/2438/11105.

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Field flow fractionation of particles in rotating coiled column has been investigated in recent year. In contrast to the classical mode of field flow fractionation in narrow channels, the use of rotating coiled columns offers the possibility of large sample loading. In this thesis, the potential for new cell separation methods based on the use of flow fractionation in fluctuating g-fields generated in rotating coil columns is examined. The effects of operational conditions (flow rate and rotational speed – Chapter 3 and Chapter 5); cell properties (cell flexibility – Chapter 4); and column sha

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11

Armstrong, Stephanye Dawn. "The effects of carrier gas viscosity on column efficiency in capillary gas chromatography." Thesis, This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-06162009-063602/.

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12

Sun, Hongyan. "Circuit analysis tools for evaluating separation efficiency of dense medium separators." Morgantown, W. Va. : [West Virginia University Libraries], 2005. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4385.

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Thesis (M.S.)--West Virginia University, 2005.<br>Title from document title page. Document formatted into pages; contains ix, 95 p. : ill. Includes abstract. Includes bibliographical references (p. 86-88).

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13

van, der Ham Leen. "Improving the Second law efficiency of a cryogenic air separation unit." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for kjemi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-14772.

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One-quarter of the worldwide greenhouse gas emissions is emitted by fossil fuel based power plants. In order to limit future climate changes caused by these emissions, several types of CO2-capturing power plants are currently being developed. An integrated gasification combined cycle (IGCC) is one of the most promising alternatives. It is the mission of a European collaboration project called DECARBit to enable the commercial use of this type of power plant. One of themain process units of an IGCC is the air separation unit (ASU). It provides both oxygen and nitrogen to the gasifier, and nitro

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14

McLean, Michael M. "Phenyl Functionalized Sol-gel Silica Sorbent for Capillary Microextraction and Chromia-Based Sol-gel Ucon Stationary Phase for Capillary Gas Chromatography." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5374.

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The first chapter of this thesis presents an introduction to sol-gel methodology whose usefulness as a synthetic route will be demonstrated with two applications in chromatography. The first application involves the fabrication of a capillary micro-extraction (CME) device by coating a phenyl functionalized extracting phase on the inner surface of a fused silica capillary for analyte pre-concentration. The device was coupled on-line to a RP-HPLC system and practicality was demonstrated using allergens as target analytes. The allergens chosen as model analytes are typically found in fragrance pr

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15

Watanabe, S., K. Gagnon, D. K. Hamlin, M. K. Chyan, E. Balkin, and D. S. Wilbur. "Evaluation of Column Separation Methods for Simplification of the Wet Chemistry Approach to Isolation of 211At." Helmholtz-Zentrum Dresden - Rossendorf, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-164241.

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Difficulties with reproducibility of isolation yields when distilling 211At from irradiated bismuth targets led us to use a “wet chemistry” approach for that process1. The wet chemistry approach has provided 211At isolation yields of ~ 78 % after decay and Bi attenuation corrections2. However, the use of diisopropyl ether (DIPE) in the separation process has made it difficult to reach our goal of automating the 211At isolation. Therefore, we have investigated the use of column materials to simplify the isolation of 211At and remove DIPE from the process. In this investigation we evaluated the

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16

Michael, Nengwekhulu Thizwilondi. "Computer simulations of a chromatographic column used in the separation of platinum group metal chlorinated complexes." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/11810.

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Includes abstract.<br>Includes bibliographical references.<br>The PGMs, which are comprised of Ru, Pt, Rh, Ir, Os and Pd, are highly regarded as technologically important precious metals. They have a wide range of applications and are used predominantly as catalysts. These metals are found collectively in nature and hence have similar chemical properties. This makes their separation from contaminants and each other a cumbersome process that requires the most technologically sophisticated refinery processes in metallurgical extraction. An efficient method in which these metal complexes are sepa

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17

Pasha, Faiq Hussain 1959. "Optimal control of a valve to avoid column separation and minimize waterhammer pressures in a pipeline." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/558105.

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18

Fayemi, Omolola E., Adeniyi S. Ogunlaja, Edith Antunes, Tebello Nyokong, and Zenixole R. Tshentu. "The Development of Palladium(II)-Specific Amine-Functionalized Silica-Based Microparticles: Adsorption and Column Separation Studies." Taylor & Francis Group, 2015. http://hdl.handle.net/10962/d1020278.

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The adsorption and separation of platinum(IV) and palladium(II) chlorido species ([PtCl6]2− and [PdCl4]2−) on silica-based microparticles functionalized with ammonium centers based on ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetriamine (TETA) and tris-(2-aminoethyl)amine (TAEA) were investigated. The functionalized sorbent materials were characterized using SEM, XPS, BET, and FTIR. The sorbents were used in the batch and column study for adsorption and selective separation of [PtCl62− and PdCl4]2−. The adsorption model for both [PtCl6]2− and [PdCl4]2− on the different sorbent

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19

Johnson, Emelie. "Per- and Polyfluoroalkyl Substances (PFASs) Removal from Landfill Leachate : Efficiency Evaluation in Column Experiments." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-260467.

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Per- and polyfluoroalkyl substances (PFASs) are known for their wide spread in the environment, their persistent properties and their ability of biomagnification through the food chain. With properties such as oil and water repellence, temperature resistance and a long lifespan they have been frequently used in various areas, e.g. hygiene products such as shampoo and tooth paste as well as in the firefighting industry as firefighting foam. They are therefore commonly found in leachate from landfills. Up to now, there is a lack of studies investigating methods of how to treat PFAS-contaminated

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20

Haelssig, Jan B. "Improving the Energy Efficiency of Ethanol Separation through Process Synthesis and Simulation." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/20100.

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Worldwide demand for energy is increasing rapidly, partly driven by dramatic economic growth in developing countries. This growth has sparked concerns over the finite availability of fossil fuels and the impact of their combustion on climate change. Consequently, many recent research efforts have been devoted to the development of renewable fuels and sustainable energy systems. Interest in liquid biofuels, such as ethanol, has been particularly high because these fuels fit into the conventional infrastructure for the transportation sector. Ethanol is a renewable fuel produced through the anae

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21

Kwon, Young Woo. "Effective Fusion and Separation of Distribution, Fault-Tolerance, and Energy-Efficiency Concerns." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/49386.

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As software applications are becoming increasingly distributed and mobile, their design and implementation are characterized by distributed software architectures, possibility of faults, and the need for energy awareness. Thus, software developers should be able to simultaneously reason about and handle the concerns of distribution, fault-tolerance, and energy-efficiency. Being closely intertwined, these concerns can introduce significant complexity into the design and implementation of modern software. In other words, to develop reliable and energy-efficient applications, software developers

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22

Al-Harthy, Farida. "Separation of aryl nitro-compounds by HPLC on monolithic columns." Thesis, Loughborough University, 2009. https://dspace.lboro.ac.uk/2134/8683.

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The project has demonstrated the use of both poly(styrene-divinylbenzene) PS-DVB and silica monolithic columns for the separation of nitro-compounds. Methods were developed with PS-DVB and ODS silica packed columns for the separation of these compounds. The first part of the project was the preparation of the monolithic stationary phases prepared from PS-DVB of (250 μm I.D. × 70 mm) functionalized with methacrylate by in-situ polymerisation. The alkylated PS-DVB then was used successfully for the first time in the separation of three aryl nitro-compounds (2-NA, 1,4-DNB and 4-NT) on micro-HPLC.

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23

Matacic, Tyler Joseph. "A Novel Index Method for Write Optimization on Out-of-Core Column-Store Databases." Youngstown State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1484310394495048.

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24

Lans, Patrik. "Numerical Methods for Simulating Separation in a Vacuum Cleaner Cyclone." Thesis, KTH, Mekanik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-194498.

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This thesis includes a numerical comparison of different turbulence models and particle models in terms of convergence time and physical accuracy. A cyclone is used as the computational domain. Cyclones are common devices for separating two or more substances. The work is divided into an experimental part and a numerical part. In the experiments, characteristics of the cyclone were measured. This data is then used to evaluate different numerical modeling approaches. The numerical part consists of two parts, namely single phase flow and multiphase flow, where different modeling aspects are exam

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25

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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26

Malkin, Douglas Scott, and Douglas Scott Malkin. "An Investigation of a Novel Monolithic Chromatography Column, Silica Colloidal Crystal Packed Columns." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/193936.

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Many researchers have investigated ways to improve the separation power of conventional chromatography, most notable is the development of ultra-high performance liquid chromatography (UHPLC). However, only slight improvements in separation efficiency have been achieved up to this point, and unfortunately, modern reversed phase liquid chromatography (RPLC) methods do not have high enough resolving power to analyze complex proteomic mixtures.Uniformly sized silica particles from 10 nm to 1 micron are known to self-assemble into a highly ordered face centered cubic crystal. Silica colloidal crys

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27

Wilhelmsen, Berit Bye. "Numerical Modelling of Separation Efficiency of Sediments in a Combined Sewer Overflow (CSO)." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for vann- og miljøteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18842.

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Combined sewer overflows (CSOs) are a part of the combined storm water and foul sewer system. CSOs should protect the downstream sewer system against overloading during heavy rainfall and snow melting. This report investigates how three-dimensional computational fluid dynamics (CFD) can be applied to evaluate the quality performance of combined sewer overflows (CSOs).Separation efficiency is a performance indicator defined as the fraction of sediments that are treated and not overflowing. Emissions from poorly constructed CSOs have a harmful impact on receiving water quality. Predicted increas

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28

Cao, Zhengwen [Verfasser]. "Membrane reactors for separation and catalysis : high integration and high efficiency / Zhengwen Cao." Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover (TIB), 2014. http://d-nb.info/1051036240/34.

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29

Schnell, Andrew Robert. "Use of decision-centric templates in the design of a separation column for a microscale gas chromatography system." Thesis, Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-07102006-081530/.

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Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2007.<br>Dr. Martha Gallivan, Committee Member ; Dr. Chris Paredis, Committee Member ; Dr. Janet K. Allen, Committee Member ; Dr. Peter Hesketh, Committee Co-Chair ; Dr. Farrokh Mistree, Committee Co-Chair.

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30

Surrao, Alicia M. "Advancing Column Chromatography by Improving Mobile Phase Chemistry for the Separation of Trace Uranium, Plutonium, Strontium, and Barium." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1529666911529026.

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31

Chan, Ryan. "Density Modulated Semi-Packed Micro Gas Chromatography Columns." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/83448.

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With the continued evolution of MEMS-based gas chromatography, the drive to develop new standalone systems with lower power consumptions and higher portability has increased. However, with improvements come tradeoffs, and trying to reduce the pressure drop requirements of previously reported semi-packed columns causes a significant sacrifice in separation efficiency. This thesis covers the techniques for evaluating the separation column in a gas chromatography system as well as the important parameters that have the most effect on a column’s efficiency. Ionic liquids are introduced as a stable

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32

Eichhorst, Jessica. "Effect of Municipal Waste Incinerator Bottom Ash on Nutrient Removal Efficiency in a Bioretention Column Study." Thesis, Southern Illinois University at Edwardsville, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1600947.

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<p> Nitrogen and phosphorus pollution in hydrologic ecosystems is a costly environmental problem. Low Impact Development measures, such as bioretention, can help prevent nutrient pollution. Bioretention is a type of green stormwater infrastructure and landscaping feature that collects, stores and treats stormwater runoff. Bioretention media is composed of sand, soil and an organic material such as compost or wood fines. While bioretention in itself is a sustainable practice, there is an ever growing demand for more sustainable solutions to the world's environmental problems. The St. Louis

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33

Rocco, Anna. "Separation of Enantiomers by Means of NanoO-Liquid Chromatography." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2013~D_20130122_144808-59559.

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Nano-liquid chromatography (nano-LC) was selected as analytical tool to develop different methods for chiral separations. Nano-LC offers several advantages over conventional LC, e.g., low sample requirement, short analysis time, easy coupling with mass spectrometer, and use of small amount of reagents, with a consequent low environmental pollution. In case of chiral separations, where expensive chiral stationary phases or chiral mobile phase additives (CMPA) have to be employed, nano-LC results very useful since it allows to perform analysis with small amount of this costly material. Initiall

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34

Salinas, Silvia Adriana. "HPLC separation of amines with a zirconia-based column coupled to a gas- phase chemiluminescence nitrogen specific detector (CLND)." Texas A&M University, 2003. http://hdl.handle.net/1969.1/241.

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Gas phase chemiluminescence nitrogen specific detector (CLND)is used for the direct analysis of underivatized nitrogen-containing components such as alkylamines that can not be detected by the so called universal HPLC detector, the UV detector. However, alkali metal hydroxides can not be used as mobile phase constituents with the CLND because they form non volatile particulate combustion products that foul the detector. Therefore, trimethylsulfonium hydroxide (TMSOH) has been selected as a strong base for use with the CLND, because its combustion products, CO2, H2O and SxOy are volatile. An a

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35

Mazyan, Walid Ibrahim. "Increasing efficiency of particle separation in natural gas cyclones using passive and active enhancements." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/61486.

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Natural gas goes through several processes ranging from extraction, treatment, liquefaction and regasification. Among these processes, treatment, specifically the removal of solid particles, has a crucial role due to its impact on annual maintenance and efficiency of downstream equipment and processes. In essence, solid particles need to be removed at a high efficiency without increasing the pressure drop and hence power consumption in the system. Cyclone separators have been used to remove large solid particles through centrifugal forces. The main disadvantage of cyclones is their efficiency,

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36

Bastos, Pedro David Anastácio de. "Separation of azeotropic mixtures using high ionicity ionic liquids." Master's thesis, Faculdade de Ciências e Tecnologia, 2014. http://hdl.handle.net/10362/12208.

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37

Cheng, Lei. "CO2 Separation from Coal-Fired Power Plants by Regenerable Mg(OH)2 Solutions." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1378216250.

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38

Udoudo, Ofonime. "Modelling the efficiency of an automated sensor-based sorter." Thesis, University of Exeter, 2010. http://hdl.handle.net/10036/118786.

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For future development of automated sensor-based sorting in the mining industry, an improvement in the separation efficiency of the equipment is desirable. This could be achieved through a better understanding of the identification and separation aspects of the automated sorter. For automated sorters that undertake separation through the use of compressed air jets, the problem of poor separation efficiency has been linked with co-deflection losses. Co-deflection losses occur as particles meant to pass on to the ‘accept’ bin are co-deflected with the particles (which are to be deflected) meant

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Guo, Lihui. "Applicability and potential of wave power in China." Thesis, University of Gävle, Department of Building, Energy and Environmental Engineering, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-7151.

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<p>Wave power is renewable energy which is environmentally friendly. Unlike most of renewable energy resources, wave energy can produce power all the year. The wave energy is stored in the ocean worldwide and highly concentrated near the ocean surface. It can be captured by wave power devices. Wave power is considered as a competitive energy resource in future.</p><p> <strong></strong></p><p>Waves are generated by wind blows across the surface of sea. Wave energy is one kind of mechanical energy which will be used for electricity generation. Wave power can’t be used directly to generate electr

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40

Venkatraman, Parthasarathy. "Evaluation of an advanced fine coal cleaning circuit." Diss., This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-06062008-151142/.

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41

Kulkarni, Akshata. "TOWARDS THE DEVELOPMENT OF NOVEL POLYMERIC MATERIALS FOR OIL/WATER SEPARATION AND IMPROVED FUEL EFFICIENCY." University of Akron / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1619104153825481.

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42

Horko, Michael. "CFD optimisation of an oscillating water column wave energy converter." University of Western Australia. School of Mechanical Engineering, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0089.

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Although oscillating water column type wave energy devices are nearing the stage of commercial exploitation, there is still much to be learnt about many facets of their hydrodynamic performance. This research uses the commercially available FLUENT computational fluid dynamics flow solver to model a complete OWC system in a two dimensional numerical wave tank. A key feature of the numerical modelling is the focus on the influence of the front wall geometry and in particular the effect of the front wall aperture shape on the hydrodynamic conversion efficiency. In order to validate the numerical

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Kegg, Steve W. "A Numerical Investigation of Gas Cyclone Separation Efficiency with Comparison to Experimental Data and Presentation of a Computer-Based Cyclone Design Methodology." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1216912969.

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Lo, Chih-Cheng. "Dna electrophoresis in photopolymerized polyacrylamide gels on a microfluidic device." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2685.

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Nylander, Julia. "The dependence of chromatographic conditions for separation of oligonucleotides in different AEX-HPLC columns." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-278851.

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Oligonucleotides (ONs) are widely used in different applications in life science, forensic, in i.e. family tree DNA test for humans and in diagnostic applications in several fields. The use of ONs in biopharmaceutical therapeutic areas also generates new challenges handling more complex molecules which results in the need of further developed analytical techniques. Anion exchange chromatography (AEX) is a common separation technique for biomolecules and is based on charge attraction between the analyte and the stationary phase. The chromatographic system is complex and often high pH and a high

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Li, Anqi. "Possibilities for removal of micropollutants in small-scale wastewater treatment - methods and multi-criteria analysis." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-232112.

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The quality of worlds’ water resources is facing new challenges, for instance detectable concentration of various trace contaminants under the term micropollutants is discharging into water bodies from both municipal wastewater treatment plants and from on-site wastewater facilities. A project called RedMic aim at identifying and quantifying emissions of micropollutants from on-site wastewater treatments as a basis for providing innovative treatment technologies to reduce potential risks for groundwater and surface water contamination. This thesis work deals with two of the work packages in th

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Tran, Tony. "Soap separation efficiency at Gruvön mill : An evaluation of the process before and after a modification." Thesis, Karlstads universitet, Fakulteten för teknik- och naturvetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-7330.

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Wood consists not only of cellulose, lignin and hemicellulose but also of so called extractives which includes fats and acids and these components are separated in the mill from the black liquor. These extractives are in the mill denoted as tall oil soap. Tall oil has a large field of applications like chemicals and fuel and as it is produced to the atmosphere if it can replace oil and thus reduce the oil consumption. Tall oil soap is separated from the black liquor in a skimmer and the focus of this thesis was to examine the effect of air injection and the soap layer thickness on the soap sep

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48

Eldeeb, Sami Kamal Hamed. "High efficiency separation techniques: fast HPLC using monolithic silica columns and chiral separation using capillary zone electrophoresis /." 2007. http://www.gbv.de/dms/bs/toc/533023092.pdf.

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Eldeeb, Sami [Verfasser]. "High efficiency separation techniques : fast HPLC using monolithic silica columns and chiral separation using capillary zone electrophoresis / von Sami Kamal Hamed Eldeeb." 2007. http://d-nb.info/984840400/34.

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50

Chiou, Yih-Leong, and 邱翊倫. "Effects of Column Separation on Waterhammer in a Pipe." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/34331446190075536134.

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碩士<br>國立成功大學<br>水利及海洋工程學系<br>85<br>The primary purpose of this study is to explore experimentally thephenomenon of liquid column separation which may occur within a pipewaterhammer propagation, and to explore further the causes of this phenomenonand its effects on the pipe transient. For different closure times of avalve, the shorter the duration ofthe valve,the easier the liquid column separation is to be found. Besides, the initial flow to be closed condition is

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