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Dissertations / Theses on the topic 'Chemical treatment'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Gerber, Christine N. "Assessing family treatment in alcoholism and chemical dependence treatment /." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487266011222351.

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2

Kong, Kong Hang. "Chemical aspects of coagulation in water treatment." Thesis, University of Macau, 2000. http://umaclib3.umac.mo/record=b1445036.

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3

Nemer, Randa J. "Anaerobic-aerobic treatment of chemical industrial effluents." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=26410.

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Several chemical industries in Canada discharge untreated effluents containing substantial amounts of organic pollutants. Environmental concern regarding the pollution of water bodies has led the authorities to issue stringent regulations with respect to the quality and quantity of wastewater that can be discharged. Chemical characterization and biotreatability of some waste streams generated by a chemical industry in Quebec was therefore undertaken. The study showed that two highly concentrated effluents were amenable to biological treatment. The first effluent, "plastifiant", was generated f

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4

Wigenstam, Elisabeth. "Pathogenesis and treatment of chemical-induced lung injury." Doctoral thesis, Umeå universitet, Institutionen för folkhälsa och klinisk medicin, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-52738.

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Inhalation of chemical substances can cause irritation to airways and in high doses acute airway injury. When mice are exposed to the alkylating nitrogen mustard analogue melphalan they develop an acute airway inflammation with a rapid influx of neutrophils to the lungs. The acute phase is followed by long-term respiratory complications characterized by bronchitis, lung fibrosis, and airway hyperreactivity. In this thesis, a mouse model for chemical airway inflammation was established and the effects on the lungs in a time span from 6 hours up to 3 months were investigated in order to stu

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5

Walsh, Stephen. "Integrated design of chemical waste water treatment systems." Thesis, Imperial College London, 1993. http://hdl.handle.net/10044/1/8603.

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6

Batarseh, Eyad. "Chemical and Biological Treatment of Mature Landfill Leachate." Doctoral diss., University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2698.

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This dissertation is about treatment of the nonbiodegradable organic content of landfill leachate by chemical oxidation combined with biological treatment. It is divided into three parts. In the first part, ferrate was compared to Fenton's reagent for the purpose of removing non-biodegradable organic compounds from mature leachate. Oxidation conditions (time, pH, and dose) were optimized to yield maximum organic removal using two leachate samples from 20 and 12-year old solid waste cells. Results from this research demonstrated that ferrate and Fenton's reagent had similar optimum pH ranges (3

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7

Reutershan, Trevor. "Chemical Kinetics and Adsorption in Wastewater Treatment Systems." Thesis, California State University, Long Beach, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10752236.

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<p> The purpose of this thesis is to provide a combined theoretical and experimental approach to solve several enduring questions in wastewater chemistry. Firstly, the sulfate radical has been proposed as an alternative oxidant in advanced oxidation processes (AOPs). Its reactivity with dissolved organic matter (DOM) has not yet been studied and will be quantied in this work using electron pulse radiolysis. Next, it has been shown that DOM present in wastewater can act to impede the remediation of harmful pharmaceutical contaminants in the AOP. Using a new binding model presented here, this as

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8

Mikhieiev, O. M., O. V. Lapan, L. H. Ovsiannikova, and S. M. Madzhd. "WATER BODIES TREATMENT FROM RADIONUCLIDES AND CHEMICAL POLLUTION." Thesis, ПАЛИВОДА А.В, 2017. http://er.nau.edu.ua/handle/NAU/30497.

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9

Sambi, Trifoni J. "Treatment of cotton-cellulose by electrogenerated chemical species." Thesis, Queensland University of Technology, 2002.

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10

Parekh, Asha 1942. "Use of magnetic nanoparticles for wastewater treatment." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/82337.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>Contamination of marine sediments and water environments by urban runoffs, industrial and domestic effluents and oil spills is proving to be of critical concern as they affect aquatic organisms and can quickly disperse to large distances as highlighted by the recent Gulf oil spill disaster. Polycyclic aromatic hydrocarbons (PAHs), poly chlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane (DDT) and heavy metals

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11

Kier, D. "Ion-exchange for radioactive waste treatment." Thesis, University of Salford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376870.

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12

Tjernström, Linnéa. "Function of soil-based on-site wastewater treatment systems - Biological and chemical treatment capacity." Thesis, KTH, Mark- och vattenteknik (flyttat 20130630), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-210716.

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On-site wastewater treatment systems are among the main Swedish anthropogenic sources of nutrients causing euthropication of the Baltic Sea. Among on-site systems in Sweden almost half have septic tank treatment followed by a soil-based system, in which the wastewater is treated through soil filtration. In this study a soil based technique for on-site wastewater treatment is studied where wastewater is filtered through a sand filter. Composite samples of influent and effluent at two sand filters in the area of Stockholm are sampled to determine their chemical and biological function and to com

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13

Modh, Haresh A. "Chemical treatment and adhesion in internally reinforced rayon fibers." Ohio : Ohio University, 1988. http://www.ohiolink.edu/etd/view.cgi?ohiou1182867766.

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14

Mcdermott, Lorraine. "Characterisation and chemical treatment of irradiated UK graphite waste." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/characterisation-and-chemical-treatment-of-irradiated-uk-graphite-waste(11852bdd-2c37-4361-ad0f-0554d05782e2).html.

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Once current nuclear reactor operation ceases in the U.K. there will be an estimated 99,000 tonnes of irradiated nuclear graphite waste which may account for up to 30% of any future UK geological ILW disposal facility [1]. In order to make informed decisions of how best to dispose of such large volumes of irradiated graphite (I-graphite) within the UK nuclear programme, it is necessary to understand the nature and migration of isotopes present within the graphite structure. I-graphite has a combination of short and long term isotopes such as 14C, 3H and 36Cl, how these behave prior to and duri

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15

Beaudet, France. "Abiotic treatment of PCP-contaminated water with metallic iron." Thesis, University of Ottawa (Canada), 1994. http://hdl.handle.net/10393/6639.

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The removal of PCP from aqueous solution in contact with metallic iron was investigated by laboratory batch experiments. The decline in PCP concentration as well as inorganic parameters were monitored over time. Removal of up to 90% of the initial PCP was observed within 24 hours. The initial geochemical conditions of the PCP solution changed rapidly to basic and reductive conditions when in contact with metallic iron. Organic degradation by-products were not found during the removal of PCP using two distinct analytical procedures. Chloride ions analyzed in the solution after PCP removal were

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16

Bosek, Renata Raye. "Predictors of Treatment Outcomes of Elderly Substance Abusers in Treatment Facilites." ScholarWorks, 2016. https://scholarworks.waldenu.edu/dissertations/2248.

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Research in the late 1990s and early 2000s projected that the number of people aged 50 and older who needed treatment for illicit drug use and abuse of prescribed medications to increase from approximately 1.7 million in 2001 to approximately 4.4 million in 2020. The purpose of this study was to examine how gender, marital status, employment status, and primary referral source predicted treatment outcomes with this older population. Of interest was how these predictions could better prepare treatment providers to treat individuals born between 1946 and 1964 who are addicted to substances. This

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17

Davidson, Deborah Nicole. "Chemical and spectroscopic studies of chromone derivatives." Thesis, Rhodes University, 1992. http://hdl.handle.net/10962/d1006857.

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Various chromone derivatives have been used in asthma therapy, and their biological activity is apparently related to certain chemical features which include conformation and acidity. In the present study, substituent effects on conformation and acidity have been explored in chromone systems with potential biological activity. A range of variously substituted symmetrical chromone-2-carboxamides (including a series of N,N-dimethylchromone-2-carboxamides) have been prepared via chromone-2-carboxylic acids, which, in turn, were prepared from the corresponding o-hydroxyacetophenones. The N,N-dimet

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18

Kumar, Mandeep. "Chemical and biological treatment of wastewater from N, N’- Dintrosopentamethylenetetramine manufacturing industries." Thesis, IIT Delhi, 2019. http://eprint.iitd.ac.in:80//handle/2074/8037.

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19

Manchisi, James. "Development of sustainable adsorbents for wastewater treatment." Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/6448/.

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The purpose of this study was to develop adsorbents from slag materials as a low cost method to purify acid mine drainage of high acidity and toxic metal ions content. The study included adsorbent characterisation and adsorption experiments to understand the adsorption behaviour of a multi-adsorbate system of Cd\(^2\)\(^+\), Co\(^2\)\(^+\), Cu\(^2\)\(^+\), Fe\(^2\)\(^+\) and Mn\(^2\)\(^+\) ions. It was found that the adsorbents had low surface area and unfavourable pore size distribution. The chemical activation of the adsorbents improved the adsorbent properties, and thus increased amounts of

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20

Sjölin, Malin. "Mechanical and chemical chip pre-treatment in mechanical pulp production." Thesis, Linköping University, The Department of Physics, Chemistry and Biology, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-15169.

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<p> </p><p><p>The mechanical pulping industry has been developing throughout the years, due to competitive prices in the electricity market and good accessibility of wood. This has made it possible for such and “expensive” process to further develop. Today, with increasing electricity prizes, it is of great interest to reduce electrical consumption in mechanical pulping industry, since the process consumes large amounts of electricity. Braviken paper mill is starting up a new thermomechanical pulping line, scheduled for start-up in August 2008, which aims to reduce electrical consumption. The

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21

Mosavat, Nasim. "Electrokinetic Treatment of Fine-grained Soils with Chemical Enhancement Solutions." Thesis, Griffith University, 2014. http://hdl.handle.net/10072/367245.

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The electrokinetic (EK) soil treatment method is a comparatively new technology. It is being investigated in some parts of the world as a feasible and practical in-situ soil remediation and treatment method. When the application of traditional ground improvement techniques (e.g. surcharge, preloading, etc) is not practical for a particular situation, innovative approaches such as EK technique can be considered. The principles of the EK treatment method involve applying a low direct current (DC) or a low potential gradient to arrays of electrodes inserted in the low permeable soils that cannot

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22

Faulkner, Briar Lee. "Chemical dependency treatment: An examination of following continuing care recommendations." CSUSB ScholarWorks, 2002. https://scholarworks.lib.csusb.edu/etd-project/2145.

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The purpose of this study was to determine what influence scheduled phone contacts would have on the extent of follow-through of continuing care recommednations by participants after treatment. Continuing care recommendations associated with ongoing sobriety include going to another level of care (individual therapy, group therapy, outpatient treatment), attending twelve-step meetings and communicating with a sponsor. Continuing care recommendations are typically written and referred to as a continuing care plan.

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23

Oehler, Mike C. "Top-of-the-line corrosion control by continuous chemical treatment." Thesis, Curtin University, 2012. http://hdl.handle.net/20.500.11937/703.

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Top-of-the-Line (TOL) corrosion was investigated under different carbon dioxide partial pressures, acetic acid concentrations, and temperatures in order to understand the impact of these different parameters on TOL corrosion.16 generic amines were tested as possible volatile corrosion inhibitor (VCI) candidates in a variety of TOL corrosion test set-ups. Properties of a working TOL corrosion inhibitor were identified and TOL corrosion laboratory test methods were improved.

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24

Randall, Dyllon G. "Development of a brine treatment protocol using Eutectic Freeze Crystallization." Doctoral thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/12225.

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Includes abstract.<br>Includes bibliographical references.<br>Hypersaline inorganic brines are generated from many global mining operations and the volume of these brines is increasing at an exponential rate. The environment and water resources in the vicinity of these mining operations are at a risk of being polluted as a result of this increase in brine volume. These are the key reasons why these brines need treatment...This thesis ultimately showed that EFC could be used to treat multi-component streams and that pure salts could be sequentially produced along with potable water.

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25

Gomez, Rosalinda, Jennifer Holt, and Claire Huynh. "Characteristics of Patients and their Treatments at an Inpatient Facility for Detoxification and Treatment of Chemical Dependence." The University of Arizona, 2005. http://hdl.handle.net/10150/624744.

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Class of 2005 Abstract<br>Objectives: The purpose of this study was to determine the demographics of co-morbid disorders and drug abuse characteristics of patients admitted to an inpatient facility for detoxification and treatment of chemical dependency to characterize the treatment programs including the psychiatric medication usage and prescribing patterns and to identify differences between men and women. Methods: Criteria inclusion for admittance included a diagnosis of chemical dependence at Sierra Tucson Behavioral Health Hospital during the time of January through June 2004. Patients we

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26

Dhadake, Yatin. "Treatment of Cooling Tower Blowdown Water Using Electrodialysis." Thesis, California State University, Long Beach, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10978789.

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<p> With the pollution of freshwater sources and the continual increase in freshwater demand due to rapid industrialization and population explosion, the globe is facing an eminent danger of scarcity of freshwater. One way to increase the water supply beyond the hydrological cycle is to reuse and recycle the waste water by developing an onsite recycling/reclamation technology. Such a bench-scale treatment technology was developed to treat the cooling tower blowdown water (CTBW) from the cooling towers of California State University, Long Beach (CSULB). The CTBW was treated by using electrodial

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27

Wissinger, Joshua Clinton. "Hydrothermal Treatment of Algal Feedstocks." University of Toledo / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1370954774.

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28

Knobel, Anthony N. "A mathematical model of a high sulphate wastewater, anaerobic treatment system." Master's thesis, University of Cape Town, 1999. http://hdl.handle.net/11427/19419.

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Includes bibliographic references.<br>High sulphate wastewaters, originating from industrial activity or from the biological oxidation of sulphide ores (acid mine drainage), cannot be discharged into the environment untreated. Apart from the high sulphate levels, these waters may be very acidic and have high dissolved heavy metal concentrations. One promising treatment technology is biological sulphate reduction in anaerobic reactors. During anaerobic treatment, sulphate is reduced to sulphide and alkalinity is generated, raising the pH and precipitating many of the heavy metals. The process r

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29

Chinungi, Don. "Surface Treatment of Photocatalyst Metal Supports for VOCs Abatement Applications." Thesis, KTH, Skolan för kemivetenskap (CHE), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-188571.

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In this work, the preparation of photocatalysts’ metal support for applications in purification of industrial gas emissions has been studied. The supports normally used in literature are ceramics, but they are not suitable for industrial applications. Stainless steel and aluminium are much more common in full-scale reactors and were therefore chosen in this investigation. Chemical etching, anodisation, electrochemical DC etching and AC etching treatment methods were used to modify the surface morphology of aluminium and stainless steel plates in order to improve the mechanical stability of pho

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30

Gaslightwala, Abizer F. (Abizer Firoze) 1973. "Evaluation wastewater treatment technologies at Ford Powertrain." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/9001.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering; and, (S.M.)--Massachusetts Institute of Technology, Sloan School of Management, 2000.<br>Includes bibliographical references (p. 80).<br>In preparation for an upcoming EPA proposal regarding Free Oil & Grease (FOG) and metal ion content in wastewater effluent, a study was performed for Ford Motor Company that assesses various seconctary wastewater treatment technologies. The three water purification technologies, membrane filtration, biological treatment, and clay media adsorption, were evaluated as secondary

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31

Peters, Jennifer 1973. "The activated sludge treatment of pulp and paper wastewater /." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=21319.

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Biological treatment of pulp and paper wastes by activated sludge is widely practiced in industry to reduce the organic content and toxicity of the wastewater. Most industrial applications require the treatment of a combination of streams from various processes. The composition of the combined stream varies since shock loadings and spills may occur. The objective of this research was to determine the effects of these variations on the microbial community and, ultimately, on the kinetics of the reduction of biological oxygen demand (BOD) and chemical oxygen demand (COD). This will improve the u

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32

Trejo-Gaytan, Julieta. "Treatment of urban runoff at Lake Tahoe : low intensity chemical dosing /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2005. http://uclibs.org/PID/11984.

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33

Buck, Andrew. "Characterisation of chemical processes operating within a biological wastewater treatment plant." Thesis, Open University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409874.

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34

Mawhinney, Heather Joan. "The improvement of effluent and water treatment by chemical floc modification." Thesis, Queen's University Belfast, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343019.

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35

Navarreto, Lugo Monica. "CHEMICAL DESIGN OF FUNCTIONALIZED NANOMATERIALS FOR SENSING AND BACTERIAL TREATMENT APPLICATIONS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1553701749029872.

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36

Mougin, Julie. "Contribution to physico-chemical studies of squalenoylated nanomedicines for cancer treatment." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASS038.

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De précédents travaux menés au sein de l’équipe du Pr. Patrick Couvreur (Institut Galien Paris-Sud) ont permis de développer des nanoparticules thérapeutiques formées par un bioconjugué issu du couplage entre un agent anti-cancéreux, la doxorubicine chlorhydrate, et un lipide naturel et biocompatible, le squalène. Par comparaison avec la doxorubicine libre, ces nanomédicaments présentent une activité anticancéreuse accrue, un temps de circulation plasmatique prolongé et une toxicité cardiaque fortement diminuée, alors que celle-ci représente l’une des principales limitations à l’utilisation de

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37

Musvoto, Eustina Vongai. "Mathematical modelling of integrated chemical, physical and biological treatment of wastewaters." Master's thesis, University of Cape Town, 1998. http://hdl.handle.net/11427/9676.

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Includes bibliographical references.<br>The development of a kinetic-based model to simulate chemical, physical and biological processes in three phase (gaseous-aqueous-solid) mixed weak acid/base systems is described. The chemical processes are expressed in terms of the kinetics of the forward and reverse reactions for the dissociation of the weak acid/bases. In this approach the H⁺ and all the species of the weak acidfbases of interest are included and the pH is calculated directly from H⁺ via pH = -log (H⁺). The advantage of this approach over the alkalinity/equilibrium chemistry approach i

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38

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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39

Cheng, Peiyao. "Chemical and photolytic degradation of polyacrylamides used in potable water treatment." [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000566.

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40

Gamez, Grijalva Victor Manuel. "BIOLOGICAL AND PHYSICAL-CHEMICAL METHODS FOR TREATMENT OF SEMICONDUCTOR MANUFACTURING EFFLUENTS." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/195838.

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Semiconductor manufacturing is one of the most advancing, growing and evolving industries. The production of semiconductors presents several challenges, both technologically and environmentally. The amount and complexity of the chemical substances utilized in the manufacturing process has been growing exponentially, and new chemicals are often introduced to the process and the environment. Two steps of this process play a special important role in the introduction of new chemical and demand of natural resources: Chemical Mechanical Planarization (CMP) and Photolithography.Wastewaters from the

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41

Kinsley, Chris. "Soybean peroxidase-catalysed treatment of phenol in the presence of polyethylene glycol." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0001/MQ44018.pdf.

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42

Lin, Kevin (Kevin Yu-Ming). "Nanoparticle systems that exploit host biology for diagnosis and treatment of disease." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/98337.

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Thesis: Sc. D., Massachusetts Institute of Technology, Department of Chemical Engineering, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 131-151).<br>Over the past 30 years, advances in nanotechnology have generated a multitude of nanostructures exhibiting a breadth of physical, chemical, and biological properties that have tremendous potential to improve the detection and treatment of disease. Despite this progress, biomedical nanotechnologies have yet to approach the same level of complexity as biological systems, which produce higher-order func

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Ameer, Guillermo A. (Guillermo Antonio) 1969. "Investigation of extracorporeal immobilized enzyme device : a potential treatment for blood deheparinization." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/85237.

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Pun, Betty Kong-Ling 1970. "Treatment of uncertainties in atmospheric chemical systems : by Betty Kong-Ling Pun." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/10066.

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Fullerton, Graham. "Hyperthermia as a Cancer Treatment- From Theory to Practice." Scholarship @ Claremont, 2018. http://scholarship.claremont.edu/cmc_theses/1824.

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Using iron super-paramagnetic and ferromagnetic nanoparticles composed of Fe3O4 molecules, scientists analyze the effectiveness and practicality of this new treatment theory, hyperthermia. The problems of magnetic particle density, isothermal barriers/cellular cooling thresholds, and nanoparticle specific targeting are addressed in this review. Iron magnetic nanoparticles were chosen due to their relatively low biological reactivates and lack of subsequent cellular toxicity. However, there are significant heating problems associated with these magnetic nanoparticles due to their relative size

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46

Keppler, Silvia. "Dry heat treatment of flour : addressing quality and safety implications." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7586/.

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High ratio cake formulations such as sponges and cupcakes are well appreciated by the market due to their favourable attributes like sweet taste, moist mouthfeel, and tender texture. To bake a successful cake of such kind, it is necessary to change flour functionality. This can be done by dry heat treatment. The aim of this work was to investigate the dry heat treatment of flour and to implement it on a novel thermal processing equipment, the Revtech system, for the production of high ratio cake flour. For this purpose, flour was heat treated in lab-scale experiments at accurately controlled t

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47

Marin, Hernandez Juan. "Treatment of dilute aircraft deicing fluid (ADP) using an anaerobic baffled reactor (ABR)." Thesis, University of Ottawa (Canada), 2005. http://hdl.handle.net/10393/26972.

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Successful treatment of low strength aircraft deicing fluid (ADF) was achieved using the Anaerobic Baffled Reactor (ABR), under different hydrological retention times (HRT) and COD influent concentrations. A total of 17 experimental runs were conducted in continuous mode, achieving COD removal efficiencies of over 75% for most of the conditions tested. During this experiment different ADF concentrations (0.04%, 0.07%, and 0.13% v/v) were continuously fed at different HRTs (24, 12, 6 and 3 hrs) at organic loading rates (OLR) varying between 0.3 and 6 kg COD/m3/d. The performance of the reactor

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48

Saini, Tejindra. "Prediction of shrinkage and the effect of heat treatment for injection molded plates." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84070.

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Injection molded parts are susceptible to shrinkage effects which undermine the strict dimensional tolerances required when they are produced. Thus, it is important to predict the conditions under which shrinkage occurs. In this work, a 3-D thermo-viscoelastic stress/strain model was used to analyze shrinkage for a flat rectangular injection molded plate under varying process conditions. Initially, the pressure, temperature, crystallinity and shear rate profiles were calculated, using an existing injection molding simulation program (McKam-IV). These data were then used to conduct the s

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Silla, Vittorio. "The treatment of Li-ion battery waste in a transferred arc plasma reactor /." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82634.

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In the new millennium, over 500 million rechargeable battery operated and miniaturized pieces of electronic equipment will be in circulation. A battery market survey showed that the average annual growth rate of Li-ion batteries will increase by 118%. The millions of spent Li-ion batteries will cause an environmental waste management problem. The cathode metals, which have a high market value (54 US$/kg cobalt) will leach into the earth when land filled.<br>A transferred arc process was proposed in which the Li-ion battery waste would be separated into volatile, slag and metal phases usi

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Lin, Changlong, and 林昌隆. "Chemical Treatment and Membrane Filtration of Fluoride-containing: Chemical Treatment and Membrane Filtration of Fluoride-containing." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/91713972744488096628.

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Abstract:

碩士<br>國立交通大學<br>環境工程所<br>91<br>The treatment of the fluoride-containing wastewater and the enormous amount of sludge generated has been a challenge for the HSIP. Fluoride-containing wastewater is generated during the etching and clean processes of semiconductor production. The range of fluoride concentration is usually between 200 and 500 mg/l. However, concentrations as high as 1000 to 2000 mg/l have been reported. In Taiwan, the most popular way of treating the fluoride-containing wastewater is the precipitation/coagulation/sedimentation process. The fluoride is first precipita

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