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Dissertations / Theses on the topic 'Chemical and physical remediation'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Acharya, Lok. "Chemical and physical characteristics of Mahoning River sediment before and after fungal bioremediation /." Connect to resource online, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1211558693.

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2

Jonsson, Sofia. "The influence of soil and contaminant properties on the efficiency of physical and chemical soil remediation methods." Doctoral thesis, Umeå universitet, Kemi, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-21040.

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A vast number of sites that have been contaminated by industrial activities have been identified worldwide. Many such sites now pose serious risks to humans and the environment. Given the large number of contaminated sites there is a great need for efficient, cost-effective remediation methods. Extensive research has therefore been focused on the development of such methods. However, the remediation of old industrial sites is challenging, for several reasons. One major problem is that organic contaminants become increasingly strongly sequestered as they persist in the soil matrix for a long

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3

Acharya, Lok P. "Chemical and Physical Characteristics of Mahoning River Sediment Before and After Fungal Bioremediation." Youngstown State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1211558693.

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4

Durve, Tushar Subhash. "A PHYSICO-CHEMICAL CHARACTERIZATION OF SALT CAKE DISSOLUTION AND STUDY OF SODIUM PHOSPHATE DODECHYDRATE PLUG REMEDIATION." MSSTATE, 2003. http://sun.library.msstate.edu/ETD-db/theses/available/etd-07112003-135708/.

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This thesis is divided into two projects. The first project investigates the dissolution of the Hanford salt cakes, the chemical properties of the effluent and the physical properties such as viscosity of the effluent, the porosity and the permeability of the salt cake bed as the dissolution proceeds. The chemical results are compared to predictions using a thermodynamic model. Physical properties are important because they govern the rate at which the Hanford tanks can be emptied thus facilitating the remediation process. Two simulants were investigated for the dissolution process. The chemic

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5

DeRose, Lisa M. L. "Physical and Chemical Controls on Natural and Anthropogenic Remediation of Two Streams Impacted by Acid Mine Drainage in the Raccoon Creek Watershed, Ohio." Ohio University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1307386296.

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6

Budde, Eva. "Assessment and optimisation of biological and physico-chemical techniques to monitor natural attenuation : application to three field sites." Thesis, University of Aberdeen, 2010. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=153281.

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Monitored natural attenuation is a cost-effective remediation strategy for the risk reduction of chemicals of concern (CoCs) in contaminated land and waters. This study considers three genuine sites in Germany, undergoing remediation. The objective was to measure a suite of physicochemical and biological parameters, and characterise the sites based on these data. The sites differed by their prevalent type of CoC, with one site impacted by polycyclic aromatic hydrocarbons (PAH), and two sites, situated in Hilden, impacted by BTEX. Sampling of microorganisms was performed using the industrial pa

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7

Wantanaphong, Janthawan. "Physico-chemical quantification of natural and waste materials for remediation of metal contaminated groundwaters using permeable reactive barriers." Thesis, University of Nottingham, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.408622.

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8

Lindberg, Fredrik. "In-situ sanering av förorenad mark : Jämförelse och utvärdering av existerande och potentiella in-situ behandlingsmetoder för PAH, aromater, arsenik, bly, nickel och bensen." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-165379.

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This thesis deals with a contaminated area in the municipality of Östersund where a gas plant has previously been operating from 1914 to 1951. Operations at the property where the gas plant has been located currently consist of a workshop and commercial premises with associated car parking. In order to be able to build on the gas plant area, the municipality intends to implement post-treatment measures in the area. The substances found in the contaminated area (hotspot area E) are polycyclic aromatic hydrocarbons (PAH), aromatics, arsenic, nickel, lead and benzene. Measurement data indicate th

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9

Stern, Heather A. G. (Heather Ann Ganung). "Electrolytic remediation of chromated copper arsenate wastes." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35284.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 2006.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references.<br>While chromated copper arsenate (CCA) has proven to be exceptionally effective in protecting wood from rot and infestation, its toxic nature has led to the problem of disposal of CCA-treated lumber and remediation of waters and soils contaminated by process wastes. The active ions in water-based CCA are hexavalen

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10

Stow, Jason P. "Chemical remediation of PCB contaminated soils using Fenton's reagent." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq22781.pdf.

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11

Boiridy, Mia Ingrid. "Potential chemical remediation of mercury in recently impounded reservoirs." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ29660.pdf.

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12

Boiridy, Mia Ingrid. "Potential chemical remediation of mercury in recently impounded reservoirs." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=27286.

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Several mitigation procedures have been proposed to limit the transfer of Hg and MeHg to aquatic organisms but most cannot be applied to large reservoirs such as those of northern Quebec for practical, economical, and environmental reasons. A better understanding of the diagenetic behaviour of Hg and methylmercury in aquatic environments has lead us to consider methods of enhancing natural processes which would either limit the mobility of Hg in flooded soils or its methylation. Different concentrations of iron oxide, iron shavings and ferrous ammonium sulphate were added to soil slurries in t

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13

Bani, Hani Saleem A. M. Sc Ph D. "Semen Quality and Chemical Oxidative Stress; Quantification and Remediation." Cleveland State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=csu1313527831.

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14

Wong, Eric 1975. "Surfactant-enhanced electrokinetic remediation of dichlorobenzene-contaminated bentonite." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=31077.

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A dense nonaqueous phase liquid, o-dichlorobenzene (o-DCB) was removed by surfactant-enhanced electrokinetic remediation from saturated bentonite clay. The surfactant was Antarox BL-236, a nonionic surfactant with a solubilization capacity of 0.052 g DCB/g surfactant. The 9 cm long bed, which initially contained 10 wt % bentonite and a dispersion of o-DCB (2910 or 5821 ppm) in water, was placed in a horizontal cylinder (5 cm ID) and held at each end by a supported filter paper. Carbon disk electrodes were located in compartments at each end of the bed. Surfactant solution or distilled water wa

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15

Merchant, Akber. "In-situ fluidization for remediation of contaminated sand." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=32966.

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Experiments were carried out to study the effects of jet velocity and the jet insertion depth on the characteristics of the fluidized region obtained when vertical and inclined water jets were submerged below the surface of saturated sand. Experiments were conducted using sand of mean particle size 507 mum. Water was injected into the sand through a tube of semicircular cross-section (internal diameter 0.55 cm) located at the wall of the tank, forming a half jet. At sufficiently high flowrate a U-shaped fluidized region formed around the jet tube. The fluidized zone was characterized by measur

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16

Penn, Madeleine Lisa Mary. "Electrokinetic soil remediation : effects of pH, temperature and chemical reactions." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266331.

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17

Zhang, Qian. "Chemical Characterization of AMD Sediments: Possible Application to Arsenic Remediation." Ohio : Ohio University, 2008. http://www.ohiolink.edu/etd/view.cgi?ohiou1227347243.

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18

Nilsson, Frederik. "Alkylglucosides physical-chemical properties /." Lund : Physical Chemistry 1, Center for Chemistry and Chemical Engineering, Lund University, 1998. http://catalog.hathitrust.org/api/volumes/oclc/39761789.html.

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19

Waduge, Waduge Anil Prasanna. "Physical and numerical modelling of source zone remediation by air sparging." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.616062.

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20

Vandenbossche, Marianne. "Functionalization of geotextiles by physical methods for heavy metal ions remediation." Thesis, Lille 1, 2014. http://www.theses.fr/2014LIL10093/document.

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Le traitement des sédiments de dragage pollués aux métaux lourds est une alternative à leur stockage sur sites homologués et pourrait permettre la réutilisation des sédiments en technique routière ou en butte paysagère. Le procédé de dépollution envisagé dans ce projet consiste à déposer les sédiments contaminés sur des géotextiles, matériaux présentant une structure poreuse idéale pour la filtration. La lixiviation permet ensuite de rendre mobile une partie des polluants métalliques afin qu’ils puissent être adsorbés par les géotextiles. Cependant, ces matériaux, généralement synthétiques, n’

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21

Vandenbossche, Marianne. "Functionalization of geotextiles by physical methods for heavy metal ions remediation." Electronic Thesis or Diss., Lille 1, 2014. http://www.theses.fr/2014LIL10093.

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Le traitement des sédiments de dragage pollués aux métaux lourds est une alternative à leur stockage sur sites homologués et pourrait permettre la réutilisation des sédiments en technique routière ou en butte paysagère. Le procédé de dépollution envisagé dans ce projet consiste à déposer les sédiments contaminés sur des géotextiles, matériaux présentant une structure poreuse idéale pour la filtration. La lixiviation permet ensuite de rendre mobile une partie des polluants métalliques afin qu’ils puissent être adsorbés par les géotextiles. Cependant, ces matériaux, généralement synthétiques, n’

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22

Trnka, Jeremiah. "Treatability study for the in situ chemical oxidation treatment of groundwater." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Thesis/Summer2009/j_trnka_071609.pdf.

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Thesis (M.S. in environmental engineering)--Washington State University, August 2009.<br>Title from PDF title page (viewed on Sept. 10, 2009). "Department of Civil and Environmental Engineering." Includes bibliographical references (p. 14-17).

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23

Kern, Rory James. "Enzyme-based detoxification of organophosphorus neurotoxic pesticides and chemical warfare agents." Thesis, [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-2118.

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24

Zhang, Weihua. "Chemical-enhanced washing for remediation of heavy metal- and petroleum hydrocarbon-contaminated soils /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202006%20ZHANGW.

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25

Weikel, Ross R. "Physical Transformations for Greener Chemical Processes." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/11654.

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Homogenous acid catalysts are prevalent throughout the chemical industry but all have the drawback of requiring post reaction neutralization and subsequent downstream removal of the product salt. The use of a base to neutralize the acid and the processing of the salt are ancillary to the process and the disposal of the salt is an environmental concern. The work presented here shows the use of alkylcarbonic acids, which form in situ with CO₂ pressure and neutralize on loss of CO₂ pressure rather than requiring a base. Thus CO₂ can be used to "switch" the acid on and off. The properties of alky

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26

Tachauer, Ingrid Heloise Huber. "Remediation of PAH contaminated soil through chemical oxidation : Utilizing hydrogen peroxide and RegenOx." Thesis, Örebro universitet, Akademin för naturvetenskap och teknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-16606.

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27

Perrman, Delmar. "Nonlinear effects in chemical dynamics and chemical kinetics: Chaos in physical chemistry." Thesis, University of Ottawa (Canada), 1994. http://hdl.handle.net/10393/9500.

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This work shows that nonlinear dynamic systems are quite different from linear dynamic systems. The usual phase plots of linear and nonlinear dynamical systems are also distinctly different, even before damping or forcing terms are added. It is also shown that the usual phase plot allows for the visualization of unobservable information that is present in the times series. The higher-order phase plots give yet additional information that is not present in the existing methods of plotting the data. Higher-order phase plots were originated and applied for the first time to a dynamical system (Mo

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28

Wickham, Andrew. "Fast chemical reactions." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309276.

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29

Pang, Ti Wee. "DNAPL remediation of fractured rock evaluated via numerical simulation." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4151.

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Fractured rock formations represent a valuable source of groundwater and can be highly susceptible to contamination by dense, non-aqueous phase liquids (DNAPLs). The goal of this research is to evaluate the effectiveness of three accepted remediation technologies for addressing DNAPL contamination in fractured rock environments. The technologies under investigation in this study are chemical oxidation, bioremediation, and surfactant flushing. Numerical simulations were employed to examine the performance of each of these technologies at the field scale. The numerical model DNAPL3D-RX, a finite

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30

Xiao, Li. "FUNCTIONALIZED MEMBRANES FOR ENVIRONMENTAL REMEDIATION AND SELECTIVE SEPARATION." UKnowledge, 2014. http://uknowledge.uky.edu/cme_etds/32.

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Membrane process including microfiltration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO) have provided numerous successful applications ranging from drinking water purification, wastewater treatment, to material recovery. The addition of functional moiety in the membranes pores allows such membranes to be used in challenging areas including tunable separations, toxic metal capture, and catalysis. In this work, polyvinylidene fluoride (PVDF) MF membrane was functionalized with temperature responsive (poly(N-isopropylacrylamide), PNIPAAm) and pH responsive (polyacrylic

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31

Hirani, Rajan A. K. "Novel remediation technologies using macroscopic graphene-based materials for wastewater treatment." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2023. https://ro.ecu.edu.au/theses/2683.

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Wastewater treatment is not a new concept as water bodies around the world have been polluted since the dawn of industrialisation. With the increase in human activities, including domestic, industrial, and commercial practices, water pollution levels continue to rise due to aqueous contaminants. In addition, rapid industrialisation and recent human progress have given rise to a new form of pollution - emerging contaminants (ECs) - which are highly resistant to biodegradation and can travel across the world. While traditional wastewater treatment methods, such as adsorption, can combat these ch

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32

Churakov, Sergey. "Physical-chemical properties of complex natural fluids." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=962849723.

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33

Zysman-Colman, Eli. "The chemical and physical properties of polychalcogens." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84864.

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The optimized synthesis of acyclic dialkoxy disulfides and aromatic polysulfides is described and their physical properties probed. A theoretical survey of dialkoxy disulfides and thionosulfites was undertaken in order to determine the most efficacious method for accurately modeling these compounds. In particular, the origin of the high barrier to rotation in the dialkoxy disulfides was determined to be due to a generalized anomeric effect resulting from two lone pair donations of each sulfur atom into each of their respective sulfur-oxygen antibonding orbitals. The origin of the high r

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34

Alves, Luis. "Physical and chemical properties of gold nitride." Thesis, University of Newcastle Upon Tyne, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.512027.

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35

Prentice, Mott Harrison Valentine. "Chemical and Physical Determinants of Cell Migration." Thesis, Harvard University, 2014. http://dissertations.umi.com/gsas.harvard:11494.

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The phenomenon of directed cell motion in response to external directional cues has drawn significant interest for more than a century, with the first recorded observations of bacterial chemotaxis at the end of the 19th century. Furthermore, movies generated by David Rogers while at Vanderbilt University of a peripheral blood neutrophil tracking a bacterium are a staple of any college biology class to demonstrate the phenomenon of eukaryotic chemotaxis. In just the last decade, our understanding of the biochemical mechanisms underlying the process of directed eukaryotic cell migration. As a re

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36

Kealey, Christopher P. "Chemical and physical modification of diamond surfaces." Thesis, University of Glasgow, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252466.

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37

Chan, Kwong. "Physical and chemical etching of textile materials." Thesis, University of Salford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305646.

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38

Katsiadaki, Ioanna. "Physical and chemical attributes of cod roe." Thesis, University of Lincoln, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387667.

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39

McKinnon, Julian Thomas. "Chemical and physical mechanisms of soot formation." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/14334.

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40

Irsfeld, Meredith Lynn. "Physical and Chemical Treatments for Bacterial Biofilms." Thesis, North Dakota State University, 2014. https://hdl.handle.net/10365/27595.

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Physical and chemical treatments have been investigated for the treatment to remove biofilms. This thesis examines the problem of the removal and prevention of biofilms by: (i) using a water jet to determine biofilm stability and (ii) testing the effect of ?-phenylethylamine (PEA) on growth and biofilm amounts. Three dimensional structures of biofilms vary in different genetic backgrounds of E. coli, we wanted to see whether changes in structures were paralleled by differences in stability of the biofilm. The water jet apparatus was used to test biofilm stability of E. coli mutants. Alteration

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41

Kavanagh, Debbie M. "Chemical and physical characterization of clay bodies." Thesis, Aston University, 2001. http://publications.aston.ac.uk/9643/.

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Suitable methods for the assessment of the effect of freeze-thaw action upon ceramic tiles have been determined. The results obtained have been shown to be reproducible with some work in this area still warranted. The analysis of Whichford Potteries clays via a variety of analytical techniques has shown them to be a complex mix of both clay and non-clay minerals. 57Fe Mössbauer spectroscopy has highlighted the presence of both small and large particleα-Fe203, removable via acid washing. 19F MAS NMR has demonstrated that the raw Whichford Pottery clays examined have negligible fluorine content.

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42

Bhattacharyya, K. G. "Chemical reactivity of mica surfaces." Thesis, Imperial College London, 1985. http://hdl.handle.net/10044/1/37638.

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43

Dobbyn, Abigail J. "Chemical dynamics using wavepacket methods." Thesis, Durham University, 1993. http://etheses.dur.ac.uk/5678/.

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This thesis is concerned with studying chemical dynamics using time-dependent quantum mechanics and in particular using the Fourier method. Various ways of implementing the Fourier method are described, both for calculations in one dimension and for those in many dimensions. The Fourier method is then used to simulate time-resolved femtosecond and picosecond pump-probe experiments, which investigate the B state of the sodium trimer. The simulation is divided into three stages: the initial wavefunction is generated by modelling the effect of the pump laser pulse on the ground state wavefunction

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44

Denuault, Guy. "Microelectrode studies of chemical reactions." Thesis, University of Southampton, 1989. https://eprints.soton.ac.uk/179323/.

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Neumann's integral theorem has been used to establish exact analytical solutions for chronoamperometric experiments and for the steady state limiting current for CE and catalytic EC mechanisms. To convert these solutions into a useful form, FORTRAN programs have been written for the necessary numerical calculations. The analytical response of microdiscs, for chronoamperometry as well as the steady state for CE and EC' reactions is presented. A different theoretical approach, as well as digital simulations, are used for the interpretation of steady state limiting currents for EC' reactions, in

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45

Johansson, Beatrice. "Characterization of soil remediation workers’ dermal exposure to polycyclic aromatic compounds." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-69072.

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Polycyclic aromatic hydrocarbons (PAHs) are organic compounds that are composed by at least two aromatic rings. PAHs can be found in coal and petroleum, but can also be formed from incomplete combustion of for example fossil fuels, tobacco, wood and when smoking food. PAHs has been shown to cause several health risks such as carcinogenic effects, which led to that the U.S Environmental Protection Agency (U.S. EPA) selected 16 PAHs as priority pollutants. Those 16 PAHs is usually analysed when investigating PAH exposure. To analyze dermal exposure of PAHs a tape-stripping technique can be used.

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46

Harden, John Michael. "Elucidation of key interactions between in situ chemical oxidation reagents and soil systems." Diss., Mississippi State : Mississippi State University, 2006. http://sun.library.msstate.edu/ETD-db/ETD-browse/browse.

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47

Pee, Gim-Yang. "Sonochemical Remediation Of Freshwater Sediments Contaminated With Polycyclic Aromatic Hydrocarbons." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1204595333.

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48

Marble, Justin. "The Influence of Physical Heterogeneity on Immiscible-Liquid Dissolution and Permeability-Based In Situ Remediation." Diss., Tucson, Ariz. : University of Arizona, 2005. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu%5Fetd%5F1342%5F1%5Fm.pdf&type=application/pdf.

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49

Jalilian, Ahmadkalaei Seyedeh Pegah. "Integrated physical-Fenton remediation of petroleum-contaminated soil using ethyl lactate as a green solvent." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/48904/.

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The huge amount of petroleum hydrocarbons contaminated sites is the heritage of a long history of fossil fuels usage. Reducing petroleum hydrocarbons levels in contaminated soils by Fenton reaction and with the aid of one or two agents such as solvents, surfactants, or vegetable oils has been studied in recent years, with successful reported results. Nonetheless, destruction of the aliphatic fraction of total petroleum hydrocarbon (TPH) by Fenton reaction has been studied to a lesser extent as compared to the aromatic fraction of TPH. Additionally, studies regarding the effect of humic acid (H

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50

Wang, Junwei. "Chemical doping of metal oxide nanomaterials and characterization of their physical-chemical properties." Case Western Reserve University School of Graduate Studies / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=case1333829935.

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