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Tesis sobre el tema "Disinfection"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 25 de julio de 2025

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1

Black, S. H. "Disinfection by-product formation from swimming pool water disinfection." Thesis, Cranfield University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284924.

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2

Winward, Gideon Paul. "Disinfection of grey water." Thesis, Cranfield University, 2007. http://dspace.lib.cranfield.ac.uk/handle/1826/2894.

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The reuse of grey water, for applications such as toilet flushing and irrigation, represents a potential sustainable solution to water shortages experienced by regions worldwide. Although reused grey water is not intended for potable use, the potential for transmission of waterborne pathogens by aerosol inhalation, topical contact, or indirect ingestion is a key concern for grey water reuse. This thesis explores the pathogen content of grey water and investigates pathogen removal through treatment and disinfection processes. The impacts of organic and particulate material in grey water on the

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3

Gallagher, Theresa Bernadette. "Application of photoactivated disinfection." Thesis, University of Brighton, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.511582.

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4

Fang, Qian. "Chloride-assisted electrochemical disinfection : bacteria and bacteriophage inactivation and disinfection by-product formation /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?EVNG%202004%20FANG.

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Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2004.<br>Includes bibliographical references (leaves 111-124). Also available in electronic version. Access restricted to campus users.

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5

Demitry, Mariana. "Evaluating Water Filtration and Disinfection for Household, Using Slow Sand Filters plus Solar Disinfection." DigitalCommons@USU, 2018. https://digitalcommons.usu.edu/etd/6911.

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In this research, a household water treatment system was built and evaluated as a trial for improving the drinking water quality of the Nile River for the low-income communities. The system consisted of household-scale slow sand filters, and transparent polyethylene terephthalate-bottles for solar disinfection. The evaluation of the system depended on the removal/inactivation of some surrogates for the reference pathogens, and turbidity. The reference pathogens are pathogens specified by the World Health Organization to evaluate the efficiency of the household water treatment options. They wer

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6

Ye, Zhengcai. "UV Disinfection between Concentric Cylinders." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14641.

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Outbreaks of food-born illness associated with the consumption of unpasteurized juice and apple cider have resulted in a rule published by the U.S. Food and Drug Administration (FDA) in order to improve the safety of juice products. The rule (21 CFR120) requires manufacturers of juice products to develop a Hazard Analysis and Critical Control Point (HACCP) plan and to achieve a 5-log reduction in the number of the most resistant pathogens. Ultraviolet (UV) disinfection is one of the promising methods to reach this 5-log reduction of pathogens. The absorption coefficients of juices typically va

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7

Bullock, Gillian. "Disinfection of swimming pool water." Thesis, Cranfield University, 2003. http://dspace.lib.cranfield.ac.uk/handle/1826/108.

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Results from this study, which has investigated the impact of the treatment technologies of chlorination, ozonation and UV irradiation on pool water quality are reported. The aim of the study was to evaluate the effect of these technologies in an unbiased way using a unique protocol, and to calculate a mass balance across the pool system. Data refer to a protocol based on operation of a 2.2m (cubed) capacity pilot swimming pool, which allows the comparison of technologies applied with reference to the propensity to generate the chlorinated disinfection by-products (DBPs) of chloramines and tri

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8

Alrousan, Dheaya. "Solar Photocatalytic Disinfection of Water." Thesis, University of Ulster, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.493903.

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9

梁啟承 and Kai-shing Alex Leung. "Control of disinfection by-products." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B41549429.

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10

McCraven, Elizabeth Kathleen. "Electro-disinfection of Ballast Water." ScholarWorks@UNO, 2009. http://scholarworks.uno.edu/td/1095.

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This research validates electro-disinfection as a potential secondary ballast water treatment technology. Electricity applied to bacteria laden water produced bactericidal effects, reactive oxygen species and chlorine generation which annihilated bacteria. Evaluation of electro-disinfection experiments showed titanium electrodes had the maximum kill efficacy while disinfection with aluminum and stainless steel electrodes had lesser kill efficacy. A continuous flow electro-disinfection reactor was evaluated utilizing artificial brackish and fresh ballast water. Brackish water had a 100% bacteri

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11

Blazo, Christopher. "Wastewater Disinfection with HYDROFLOW Technology." ScholarWorks@UNO, 2013. http://scholarworks.uno.edu/td/1611.

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Disinfection is the final and very important step of wastewater treatment to maintain healthy ecosystems. Although chlorination is the most prevalent wastewater disinfection method, there are serious safety concerns and ecological problems associated with its use. The purpose of this study was to test the feasibility of using a HydroFLOW 60i unit for wastewater disinfection, as an alternative to chlorination. The study was performed using two different reactors, namely, a bench-scale laboratory batch reactor, and a continuous flow, pilot unit. Using the batch reactor, it was found out that the

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12

Leung, Kai-shing Alex. "Control of disinfection by-products." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B41549429.

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13

Rojko, Christine. "Solar disinfection of drinking water." Link to electronic thesis, 2003. http://www.wpi.edu/Pubs/ETD/Available/etd-0423103-124244.

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14

Paragliola, Raffaele. "Maximizing disinfection procedures in endodontics." Doctoral thesis, Università di Siena, 2021. http://hdl.handle.net/11365/1127093.

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The purpose of the present thesis was to evaluate/correlate different aspects of the endodontic treatment in order to shed some light on the influence of microorganisms disinfection during root canal treatment.

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15

Komvuschara, Kanyarat. "UV disinfection in comparison with other small scale disinfection technologies for the treatment of domestic greywater." Thesis, University of Hertfordshire, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.247322.

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16

Sert, Caglayan. "Booster Disinfection In Water Distribution Networks." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/2/12610755/index.pdf.

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Disinfection of the municipal water systems is mostly achieved by means of chlorine addition at water treatment plants known as sources. Thus, there should be an adequate chlorine concentration at the source for an effective disinfection throughout the system by considering upper and lower limits of disinfectant. However, since the disinfectants are reactive and decays through the system, chlorine added at the source may not be enough to maintain desired disinfectant residuals which may lead to water quality problems in the water distribution system. Moreover, the disinfectants such as chlorin

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17

Bond, Tom. "Treatment of disinfection by-product precursors." Thesis, Cranfield University, 2009. http://dspace.lib.cranfield.ac.uk/handle/1826/4005.

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Natural organic matter (NOM) in drinking water forms disinfection byproducts (DBPs) through reactions with disinfectants, typically chlorine. Many DBPs are harmful to human health. Potentially the most effective means of controlling DBPs is to remove NOM precursors before disinfection. However, both DBP formation and removal of precursors in natural waters are variable and unpredictable, reflecting the diverse and variable nature of NOM. To better understand the relationships between DBP formation, compound character and treatment, experiments were undertaken with a range of NOM surrogates, as

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18

Khaengraeng, Rungpetch. "Characterisation of solar photo-oxidative disinfection." Thesis, Northumbria University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402247.

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19

Dalrymple, Omatoyo Kofi. "Mechanistic Modeling of Photocatalytic Water Disinfection." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3057.

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The main goal of this research was to develop a mechanism-based model for photocatalytic disinfection of bacteria in water using suspended catalyst pthesiss in batch reactors. The photocatalytic disinfection process occurs as a semiconductor photocatalyst, most commonly titanium dioxide (TiO2), is irradiated with light of wavelength less than 380 nm to produce hydroxyl radicals and other highly reactive oxidants which can inactivate microorganisms. Photocatalytic disinfection involves a complex interaction of many fundamental mechanisms such as light absorption and scattering by semiconductor

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20

Alotaibi, Modhawi. "Black Virus Disinfection in Chordal Rings." Thèse, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31170.

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The topic of this thesis is black virus disinfection using mobile agents. The black virus is a faulty node that destroys any visiting agent without leaving a trace; moreover, once the black virus is triggered by an agent, it clones itself and spreads to neighbouring nodes. These viruses can only be destroyed if they move to nodes that have been occupied by agents. In this thesis, we consider the black virus disinfection problem in chordal rings. Initially, the system contains a single black virus that resides at an unknown location. We propose a solution that involves deploying a team of mobil

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21

Tree, Julia Anne. "The virucidal efficacy of wastewater disinfection." Thesis, University of Surrey, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387537.

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22

Gradel, Kim Oren. "Disinfection of Salmonella in poultry houses." Thesis, University of Bristol, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398775.

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23

Silvestry, Rodriguez Nadia. "Silver Disinfection in Water Distribution Systems." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/194756.

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Silver was evaluated as disinfectant to maintain water quality in water distribution system. It was used to inhibit growth of two opportunistic bacteria in planktonik form and in biofilm formation in Robbins devices with stainless steel and PVC surfaces. The results of this work show that silver is a potential secondary disinfectant to be used in water distribution systems

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24

Acosta, Vega Julio A. "Electro-Disinfection of Municipal Waste Water using Direct Current." ScholarWorks@UNO, 2014. http://scholarworks.uno.edu/td/1899.

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Wastewater treatment has always been a problem to human settlers. Events such as the great stink of London during the summer of 1858 have pushed engineers into developing new technologies to deal with such wastes in effective and safe ways. Research projects like this aim to find ways of improving performance, economics, or environmental friendliness of treatment and disinfection methods. This thesis deals with the effectiveness, mechanisms of action, by-products and side effects of using DC current to disinfect secondary effluent. It is proposed as an alternative to conventional methods, such

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25

Tamas, Andrea. "Successful promotion of solar water disinfection (SODIS) /." [S.l.] : [s.n.], 2009. http://opac.nebis.ch/cgi-bin/showAbstract.pl?sys=000278508.

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26

McAuley, Kimberley. "Disinfection by-products and public health concerns." University of Western Australia. School of Population Health, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0070.

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Disinfection by-products (DBPs) are a major group of water contaminants and their role in causing adverse health outcomes, including adverse pregnancy outcomes, endocrine disruption, respiratory related adverse health outcomes and cancer has been subject to extensive epidemiological and toxicological research and review. Determination of safe exposure to DBPs, particularly within drinking water supplies, has been a topic of extensive debate, with a wide range of acceptable levels set across the industrialized world. The focus of the research in this thesis was on two of the main health outcome

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27

Broers, Teresa. "Abruptio placentae and chlorination disinfection by-products." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ63274.pdf.

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28

Kosa, Samia Abdulhamied. "Photoelectrocatalytic disinfection of E. coli by TiOâ‚‚." Thesis, University of Newcastle Upon Tyne, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.407580.

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29

Wallis, C. "The ozone disinfection performance of rotary contactors." Thesis, University of Newcastle Upon Tyne, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315668.

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30

Wang, Tao. "Waterborne microorganism disinfection with pulsed UV light." Thesis, University of Strathclyde, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417348.

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31

Sicairos, Ruelas Enue Erdemely. "The Development of Alternative Methods of Disinfection." Diss., The University of Arizona, 2007. http://hdl.handle.net/10150/194751.

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Chlorine is the primary method for disinfection of drinking water in the United States; however, growing concerns about the potential hazards associated with carcinogenic chlorine disinfection by-products have resulted in increased efforts to develop alternative methods of water disinfection. In addition, it is sometimes difficult to maintain an adequate concentration of free chlorine throughout a drinking water distribution system due to intrusion events and the presence of biofilms.Silver and copper are widely used as environmental biocides and as clinical antimicrobial agents. Copper has be

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32

Artiola, Janick F., Channah Rock, and Gary Fix. "Water Storage Tank Disinfection, Testing, and Maintenance." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2012. http://hdl.handle.net/10150/255333.

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33

Mangombo, Zelo. "The electrogeneration of hydroxyl radicals for water disinfection." Thesis, University of the Western Cape, 2006. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_5745_1190373027.

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<p>This study has shown that OHË radicals can be generated in an Fe/O2 cell from the electrode products via Fenton&rsquo<br>s reaction and used for water disinfection. The cell system in which the experiments were carried out was open and undivided and contained two electrodes with iron (Fe) as the anode and oxygen (O2) gas diffusion electrode. Typically, 100 ml of Na2SO4.10H2O (0.5M) solution was used as a background electrolyte. OHË radicals were produced in-situ in an acidic solution aqueous by oxidation of iron (II), formed by dissolving of the anode, with hydrogen peroxide (H2O2). The H

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34

Pole, Jason. "Quantifying misclassification in water disinfection by-product analysis." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0021/MQ53021.pdf.

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35

Szomolay, Barbara. "Analysis and control of a biofilm disinfection model." Diss., Montana State University, 2006. http://etd.lib.montana.edu/etd/2006/szomolay/SzomolayB1206.pdf.

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36

Sanden, Gary Noble. "Disinfection of potable-quality water containing Legionella pneumophila." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/25377.

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37

Martin, G. C. "Development of an orally relevant biofilm disinfection model." Thesis, University College London (University of London), 2012. http://discovery.ucl.ac.uk/1346469/.

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This thesis describes the development and use of a novel microtitre plate biofilm system for testing the antimicrobial activity of test materials. The developed model is capable of high-throughput screening and furthermore the system has been shown to be stable and reproducible. The search for new antimicrobial agents for improved plaque control requires appropriate screening models. Key criteria for these models include; predictive of clinical data, orally relevant organisms (mixed species, bacteria present in biofilms), short contact time, rapid, reproducible and high throughput. The most wi

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38

Chavez, Reyes Xavier A. "Electrochemical Disinfection of Municipal Wastewater using Alternating Current." ScholarWorks@UNO, 2014. http://scholarworks.uno.edu/td/1907.

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This research focused on chlorine-free disinfection of wastewater by complying with today's regulations. The equipment used was a continuous flow electrochemical reactor connected to an alternating current (AC) power supply. The electrodes used were made out of titanium coated with iridium oxide. To determine the inactivation of Escherichia Coli, a bacterial count method based on the USEPA method 1603 was used. After several experiments it was determined that electrochemical disinfection using AC was not efficient and economic enough to be classified as a viable alternative to chlorine disinfe

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39

De, Grau Vidal Luis. "Field Study of Electrochemical Disinfection of Municipal Wastewater." ScholarWorks@UNO, 2015. http://scholarworks.uno.edu/td/2064.

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Research on electrochemical disinfection of municipal wastewater has been conducted at the University of New Orleans using a continuous flow electrochemical reactor connected to a direct current (DC) power supply changing its polarity and varying the electrode distance. Bacterial inactivation and chlorine production were the main parameters that were recorded. After months of research, it was determined that the electrochemical disinfection reactor is efficient and has a great potential for the future. There is no need to use chlorine and it has low operation costs. The following design recomm

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40

Martins, Celso Filipe Ferreira. "Functional polymers as antimicrobial agents for oral disinfection." Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/9539.

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Mestrado em Biologia Aplicada - Microbiologia Clínica e Ambiental<br>A flora microbiana da boca é uma das mais ricas e diversas do corpo humano. É no entanto, altamente variável de indivíduo para indivíduo, sendo por isso, impossível estabelecer com rigor o número e tipo de espécies que fazem parte desse bioma. Microrganismos patogénicos presentes na boca têm vindo a ser progressivamente associados a patologias de sistemas orgânicos que ultrapassam o âmbito estrito da cavidade oral. São diversos os casos descritos de endocardites, cancro, infeções respiratórias e até diabetes, provocados por m

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41

Pole, Jason. "Quantifying misclassification in water disinfection by-product analysis." Ottawa : National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.nlc-bnc.ca/obj/s4/f2/dsk1/tape4/PQDD%5F0021/MQ53021.pdf.

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42

Patel, Nikita. "use of household bleach products for emergency disinfection." Thesis, The University of Arizona, 2008. http://hdl.handle.net/10150/190716.

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43

Fitzpatrick, Heather L. "Covering chlorine contact basins at the Kanapaha Water Reclamation Facility effects on chlorine residual, disinfection effectiveness, and disinfection by-product formation /." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0010400.

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44

Moody, A. P. "A peroxide sensor for the food and beverages industry." Thesis, Cranfield University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269479.

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45

Cozzi, Pierluigi. "A study of the flow through ultraviolet disinfection systems." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ45452.pdf.

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46

Hardy, Scott Andrew. "Effectiveness of static mixers for disinfection of cryptosporidium oocysts." Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/20925.

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47

Kerwick, Mark Ian. "An evaluation of alternative technologies for drinking water disinfection." Thesis, University of Surrey, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.594172.

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A methodology has been developed and used to evaluate the alternatives to chlorination for primary and residual drinking water disinfection. From the evaluation process it was concluded that at present none of the altemalives could viably replace chlorination for both primary and residual disinfection. The study did however highlight the potential of electrochemical disinfection technologies to provide primary and residual disinfection in the future by the generation of a range of oxidants including chlorine species. Hence, three electrochemical technologies (a mixed oxidant generator, a direc

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48

Evaldsson, David, and Jakob Hahrs. "Prognostisering av efterfrågan : En fallstudie på Getinge Disinfection AB." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-44582.

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Bakgrund: För företag är logistikverksamheten ett område som är av stor betydelse för lönsamheten. Lönsamheten förbättras genom att öka antingen vinstmarginalen eller kapitalomsättningshastigheten, där det senare kan erhållas genom att minska lager-nivåerna. Lager leder till ett antal kostnader, bland annat kapitalbindning. En viktig faktor inom lagerstyrningen är prognoser. Företag använder prognoser för att uppskatta produkternas framtida efterfråga i syfte att planera sin verksamhet. Då prognoser sällan stämmer mot verkligt utfall uppstår en osäkerhet. I lagerstyrningen täcks osäkerheten up

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49

Cheung, Chi-shing, and 張志成. "Economic valuation of UV disinfection in Hong Kong sewage." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31255802.

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50

Chia, Catherine Anne. "Effect of incident beam angulation on disinfection of dentinaltubules." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45165749.

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