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Tesis sobre el tema "Drinking water"

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Publicado: 4 de junio de 2021
Última modificación: 25 de julio de 2025

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1

Velie, Ted. "Drinking the Water." Connect to online resource, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1453528.

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2

Hassinger, Elaine, and Jack Watson. "Drinking Water Standards." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 1998. http://hdl.handle.net/10150/146411.

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4 pp.<br>Gasses, minerals, bacteria, metals and chemicals suspended or dissolved in water can influence the quality of the water and hence affect our health. Therefore, EPA, the U.S. Environmental Protection Agency, has established limits on the concentration of certain drinking water contaminants allowed in public water supplies. This publication discusses drinking water standards and how these standards are set.
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3

Li, Hongjie. "Optimizing drinking water filtration." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0011/MQ60148.pdf.

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4

Kilungo, Aminata Peter. "Drinking Water Quality Monitoring." Diss., The University of Arizona, 2013. http://hdl.handle.net/10150/306073.

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This dissertation involves two different studies. The first concerns the real-time detection of microbial contamination in drinking water using intrinsic fluorescence of the microorganisms. The prototype, “Blinky”, uses LEDs that emit light at 365nm, 590nm, and 635nm for ultraviolet, amber, and red light, respectively. At 365 nm, the cellular components excited include reduced pyridine nucleotides (RPNs), flavins, and cytochromes to distinguish viable bacteria; at 590 nm, the cellular components excited include cytochromes for non-viable bacteria; at 635 nm, the cellular components excited inc
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5

Schalau, Jeff. "Arsenic in Drinking Water." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2005. http://hdl.handle.net/10150/147004.

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2 pp.<br>Arsenic is the twentieth most abundant element in the earth's crust and frequently occurs in rock formations of the Southwestern United States. Arsenic remains in the environment over long periods and when it occurs in high concentrations, it can be toxic to many life forms, but it also has been shown to be an essential nutrient for many animal species and may be to humans, too. This publication provides information about the impact arsenic in drinking water has over human and plant health and the ways to remove it.
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6

Kavcar, Pınar Sofuoğlu Sait C. "Assessmanet of exposure and risk associated with trihalomethanes and other volatile organic compounds in drinking water/." [s.l.]: [s.n.], 2005. http://library.iyte.edu.tr/tezler/master/cevremuh/T000375.pdf.

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Thesis (Master)--İzmir Institute Of Technology, İzmir, 2005.<br>Keywords:Trihalomethane, volatile organic compounds, drinking water, risk assessment, exposure. Includes bibliographical references (leaves. 64-70).
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7

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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8

Van, der Leer Daniel. "Modelling lead in drinking water." Thesis, Swansea University, 2003. https://cronfa.swan.ac.uk/Record/cronfa42919.

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In light of substantial medical evidence of the detrimental effect of lead on the body, the use of lead in pipe networks, and the subsequent lead emissions into drinking water is now a major concern. As a result, the new European Union 'drinking water' directive requires the standard for lead in drinking water to be tightened from 50pg/l to 25pg/l by December 2003 and to 10pg/l by December 2013. It is anticipated that these standards will be achieved by a combination of water treatment, which must be optimised, and selective lead pipe replacement where necessary. In order to optimise correctiv
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9

Sá, Jacinto de Paiva. "Catalytic denitration of drinking water." Thesis, University of Aberdeen, 2007. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU602323.

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Human demand for clean water has increase drastically in the past centuries, mainly due its demographic growth. The sources of clean drinking water have been continuously reduced due to depletion or contamination with one example being the extensive use of fertilizers in agriculture, which can lead to leaching of nitrates into groundwater and hence into surface water. The gravity of the situation was expressed by European Environmental Agency in 1998, revealing that, 87% of agricultural areas in the European Union (EU) have nitrate concentrations in groundwater above the guide level (25 ppm).
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10

Blain, Heather Ann. "Drinking water out of streams." College Park, Md. : University of Maryland, 2008. http://hdl.handle.net/1903/8212.

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Thesis (M.F.A.) -- University of Maryland, College Park, 2008.<br>Thesis research directed by: Dept. of English. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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11

Abheiri, Salah. "Removing nitrate from drinking water." Thesis, Abheiri, Salah (2010) Removing nitrate from drinking water. Masters by Research thesis, Murdoch University, 2010. https://researchrepository.murdoch.edu.au/id/eprint/5120/.

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Water resources in many parts around the world are becoming critical because of human activity. This leads many countries around the world to rely more on their groundwater as an essential source of drinking water. The situation in Libya is critical because there is no access to surface fresh water. The rainfall rate is very low, but there is a huge quantity of ground water with good quality (average TDS around 1030 mg/l) and this leads the country to rely on this water source. The Great Man-Made River Authority (GMRA) was established to produce and transfer water from the southern part of the
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12

Uhlman, Kristine, Channah Rock, and Janick Artiola. "Arizona Drinking Water Well Contaminants." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2009. http://hdl.handle.net/10150/156930.

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4 pp.<br>This short fact sheet is taken from "Arizona Well Owner's Guide to Water Supply" currently in print. We plan to complete part 2 of this fact sheet by the end of July, 2009. Please note that the text has already been incorporated into the eXtension Community of Practice web page - - I am the author for the COP/Drinking Water group text on chemistry of naturally occurring water contaminants.<br>Arizona well water is often contaminated with elevated concentrations of naturally occurring constituents that are a human health concern. This short fact sheet is the first in a two-part serie
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13

Hassinger, Elaine. "Nitrates in Your Drinking Water." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 1994. http://hdl.handle.net/10150/156936.

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1 pp.<br>Infants and certain elderly people are the most susceptible to nitrates found in water. When these individuals drink water or eat foods that contain high levels of nitrates, their blood can lose the ability to effectively carry oxygen. This condition is called methemoglobinemia or blue baby syndrome. This article discusses the health problem caused by nitrates found in your drinking water, and the way to test for those nitrates.
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14

Wang, Zhong. "Adaptive water quality control in drinking water distribution." Cincinnati, Ohio : University of Cincinnati, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=1052325491.

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15

Scott, Veronica J. "Strontium in Drinking Water: Assessing Strontium as a Drinking Water Contaminant in Virginia Private Wells." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/90572.

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Approximately 80% of Virginians with private drinking water (PDW) sources are unaware of the quality of their drinking water. Strontium is a water quality contaminant gaining recognition at the federal level. At concentrations >1.5 mg/L, strontium substitutes calcium in the bones leading to bone density disorders (e.g. rickets). This is particularly problematic for children and individuals with low calcium and low protein diets. Because most Virginians do not know the quality of their PDW and since strontium poses a public health risk, this study investigates the sources of strontium in PDW in
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16

Gregg, Anne Marie. "Arsenic in drinking water the public health implications of monitoring technologies /." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1195673218.

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17

Prince, Rachael Anne. "Formation of discoloured water and turbidity in an unfiltered water distribution system." Swinburne Research Bank, 2008. http://hdl.handle.net/1959.3/36071.

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Thesis (PhD) - Swinburne University of Technology, Faculty of Engineering and Industrial Sciences, 2008.<br>A thesis submitted for the degree of Doctor of Philosophy, Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, 2008. Typescript. Includes bibliographical references: p. 263-278.
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18

Sävenhed, Roger. "Chemical and sensory analysis of off-flavour compounds in drinking water." Linköping : Linköping University, 1986. http://catalog.hathitrust.org/api/volumes/oclc/25607250.html.

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19

Furlong, Claire. "Drinking water practices in Amazonian Peru : exploring the link between perceived and actual drinking water quality." Thesis, University of Newcastle upon Tyne, 2010. http://hdl.handle.net/10443/3383.

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Perceived drinking water quality is a factor known to cause the failure of drinking water schemes in developing countries. This leads to the loss of health benefits which are the main aims of such schemes. This thesis examines the relationship between perceived and actual drinking water quality and the factors which feed into perceived drinking water quality in a developing countries context. A mixed methodology approach was used which included the use of the following methods: a questionnaire (n=96), participant observations, interviews, a media study, analysis of other texts, sanitary survey
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20

WANG, ZHONG. "ADAPTIVE WATER QUALITY CONTROL IN DRINKING WATER DISTRIBUTION NETWORKS." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1052325491.

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21

Codony, Iglesias Francesc. "Microbial dynamics in drinking water biofilms." Doctoral thesis, Universitat Autònoma de Barcelona, 2015. http://hdl.handle.net/10803/334388.

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El agua de consumo subministrada a través de las redes de distribución deviene alterada durante su circulación en el mismo debido a la actividad microbiana. Estos cambios en la calidad a menudo afectan al sabor, color y al olor. En otros casos, la calidad sanitaria de agua es alterada debido al recrecimiento bacteriano. La masa del agua, es el mayor hábitat de un sistema de aguas potables, aunque la mayoría de cambios significativos en sus propiedades tienen lugar en las superficies de contacto las cuales están colonizadas por microorganismos creciendo en diferentes comunidades microbianas ad
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22

Hylin, Frida Douglass. "Drinking Water Safety in African Countries." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for produktutvikling og materialer, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18508.

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The following report is the result of a literature study of published documents presenting the current water supply situation in Sub-Saharan Africa, in combination with a field trip to the Mpagne village in Cameroon. The objective of the project has been to study and discuss the current theoretical approach on sustainable water supply, as well as to generate possible technical solutions and present administrative changes required. A thorough background analysis demonstrates the need for improvement on a local village level as well as on a regional, national and international level. Key finding
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23

Qin, Xiaoli, and 秦小麗. "Biofilms in drinking water distribution systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B4150866X.

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24

Khan, Wesaal. "Microbial interactions in drinking water systems." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/53751.

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Thesis (PhD)--Stellenbosch University, 2004.<br>ENGLISH ABSTRACT: Microorganisms show a tendency to accumulate on surfaces in aqueous environments to form biofilms. Microbial biofilms represent a significant problem in public health microbiology as the development of these microbial communities, especially in water distribution systems, may lead to (i) the enhanced growth of opportunistic pathogens, (ii) the development of organoleptic problems, (iii) the reduction in the flow rate and (iv) the regrowth of microorganisms. In this project, biofilm monitors were installed in a large water
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25

Srinivasan, Rangesh. "Treatment of Microcontaminants in Drinking Water." University of Cincinnati / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1242775351.

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26

Qin, Xiaoli. "Biofilms in drinking water distribution systems." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B4150866X.

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27

Hassinger, Elaine, and Jack Watson. "Health Effect of Drinking Water Contaminants." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 1998. http://hdl.handle.net/10150/146310.

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2 pp.<br>Chemical contaminants occur in drinking water supplies throughout the United States, ranging from barely detectable amounts to levels that could possibly threaten human health. Determining the health effects of these contaminants is difficult, especially since researchers are still learning how chemicals react to the damaged cells. This publication addresses the issue of chemical contaminants in drinking water, topics include; acute and chronic health effects, setting standards, and treatment techniques.
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28

Romero, Gomez Pedro. "Transport Phenomena in Drinking Water Systems." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/194495.

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The current computer models used for simulating water quality in potable water distribution systems assume perfect mixing at pipe junctions and non-dispersive solute transport in pipe flows. To improve the prediction accuracy, the present study examines and expands these modeling assumptions using transport phenomena analyses. Whereas the level of solute mixing at a cross-type junction is evaluated numerically via Computational Fluid Dynamics (CFD), the axial transport in laminar flows is investigated with both CFD simulations and corresponding experimental runs in a single pipe. The findings
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29

Heitz, Anna. "Malodorous dimethylpolysulfides in Perth drinking water." Thesis, Curtin University, 2002. http://hdl.handle.net/20.500.11937/2162.

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The formation of an objectionable "swampy" odour in drinking water distribution systems in Perth, Western Australia, was first described by Wajon and co-authors in the mid-1980s (Wajon et al., 1985; Wajon et al., 1986; Wajon et al, 1988). These authors established that the odour, variously described as "swampy", "sewage" or "cooked vegetable" was caused by dimethyltrisulfide (DMTS) which has an odour threshold concentration of 10 nanograms per litre (ng/L). Investigations described in the present Thesis extend the work of Wajon and co-workers in attempting to establish the origin and cause of
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30

Heitz, Anna. "Malodorous dimethylpolysulfides in Perth drinking water." Curtin University of Technology, Department of Applied Chemistry, 2002. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=12576.

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The formation of an objectionable "swampy" odour in drinking water distribution systems in Perth, Western Australia, was first described by Wajon and co-authors in the mid-1980s (Wajon et al., 1985; Wajon et al., 1986; Wajon et al, 1988). These authors established that the odour, variously described as "swampy", "sewage" or "cooked vegetable" was caused by dimethyltrisulfide (DMTS) which has an odour threshold concentration of 10 nanograms per litre (ng/L). Investigations described in the present Thesis extend the work of Wajon and co-workers in attempting to establish the origin and cause of
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31

Wang, Yuxin. "Source Water Quality Assessment and Source Water Characterization for Drinking Water Protection." Research Showcase @ CMU, 2014. http://repository.cmu.edu/dissertations/416.

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Source water quality plays a critical role in maintaining the quality and supply of drinking water, yet it can be negatively affected by human activities. In Pennsylvania, coal mining and treatment of conventional oil and gas drilling produced wastewaters have affected source water quality for over 100 years. The recent unconventional natural gas development in the Marcellus Shale formation produces significant volumes of wastewater containing bromide and has the potential to affect source water quality and downstream drinking water quality. Wastewater from coal-fired power plants also contain
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32

Ko, Han Il. "Noncoliform enumeration and identification in potable water, and their senstivity to commonly used disinfectants." Virtual Press, 1997. http://liblink.bsu.edu/uhtbin/catkey/1041914.

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Tap water collected according to standard methods was examined for microbial presence. Epifluorescent diagnoses using redox probe 5-cyano-2,3ditolyl tetrazolium chloride (CTC), 4',6-diamidino-2-phenylindole (DAPI), and acridine orange (AO) were employed for direct evidence of microorganisms. Evidence of total (DAPI or AO), respiring (CTC) bacteria, and heterotrophic plate count (HPC) was determined on multiple occasions during the summer, fall, and winter 1996-1997. Pseudomonas aeruginosa, Acinetobacter sp., Bacillus licheniformis, and Methylobacterium rhodinum were isolated and identified by
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33

Rose, Joan Bray. "Virus removal during conventional drinking water treatment." Diss., The University of Arizona, 1985. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1985_473_sip1_w.pdf&type=application/pdf.

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34

Juhna, Talis. "Aspects of drinking water supply in areas of humic water." Doctoral thesis, Luleå, 2002. http://epubl.luth.se/1402-1544/2002/27/index.html.

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35

Webb, David W. "WATER QUALITY VARIATIONS DURING NITRIFICATION IN DRINKING WATER DISTRIBUTION SYSTEMS." Master's thesis, University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4492.

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This thesis documents the relationship among the major water quality parametersduring a nitrification episode. Nitrification unexpectedly occurred in a chloraminated pilotdrinking water distribution system practicing with a 4.0 mg/L as Cl[subscript 2] residual dosed at 4.5:1Cl[subscript 2]:NH[subscript 3]-N. Surface, ground and sea water were treated and disinfected withmonochloramines to produce finished water quality similar to regional utility water quality.PVC, galvanized, unlined cast iron and lined iron pipes were harvested from regionaldistribution systems and used to build eighteen pil
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36

Alere, Ilze. "Aspects of water quality dynamics in drinking water distribution systems." Licentiate thesis, Luleå tekniska universitet, 1997. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-16878.

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37

Shi, Yi. "Biofilm impacts on water quality in drinking water distribution systems." Thesis, Cardiff University, 2018. http://orca.cf.ac.uk/111782/.

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Drinking water distribution systems (DWDSs) account for the majority of the infrastructure for transporting water from treatment plants to customers’ tap. During the transportation, water quality deteriorates due to the unavoidable accumulation of biofilm within the pipelines. The microbial activity and ecology within the biofilm have great impact on the water quality degradation process. Within DWDSs using chloramine as disinfectant, nitrification caused by nitrifying bacteria is increasingly becoming a concern as it poses a great challenge for maintaining water quality. In order to control n
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38

Ekanayake, Sarath. "Characteristics of particles contributing to turbidity in potable water distribution networks." Swinburne Research Bank, 2009. http://hdl.handle.net/1959.3/61048.

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Thesis (PhD) - Faculty of Life and Social Sciences, Swinburne University of Technology, 2009.<br>Submitted in full requirement for the degree of Doctor of Philosophy, Faculty of Life and Social Sciences, Swinburne University of Technology - 2009. Typescript. Includes bibliographical references (p. 137-160)
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39

Bereskie, Ty Anthony. "Drinking water management and governance in small drinking water systems : integrating continuous performance improvement and risk-based benchmarking." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/61464.

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Drinking water suppliers face challenges associated with changing populations, evolving economies, aging infrastructure, and shifting consumer demands. In small drinking water systems (SDWSs), these challenges are amplified by the pressure created from financial shortfalls and limited human resources. SDWSs are prone to higher rates of drinking water quality failure, are more vulnerable to spatiotemporal variability in water quality, and may be more susceptible to waterborne disease outbreaks than larger systems. Despite these challenges, SDWSs are overlooked in traditional academic and indust
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40

Kar, Sudip. "Environmental and health risk assessment of trihalomethanes in drinking water : a case study /." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0018/MQ54926.pdf.

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41

Franklin, Guy Sinclair. "Novel iron precipitates for drinking water treatment." Thesis, Imperial College London, 1999. http://hdl.handle.net/10044/1/8351.

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42

Verrelli, D. I. "Drinking water treatment sludge production and dewaterabilityф". D. I. Verrelli, 2008. http://repository.unimelb.edu.au/10187/3521.

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The provision of clean drinking water typically involves treatment processes to remove contaminants. The conventional process involves coagulation with hydrolysing metal salts, typically of aluminium (‘alum’) or trivalent iron (‘ferric’). Along with the product water this also produces a waste by-product, or sludge. The fact of increasing sludge production — due to higher levels of treatment and greater volume of water supply — conflicts with modern demands for environmental best practice, leading to higher financial costs. A further issue is the significant quantity of water that is held
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43

Conboy, Mary Jane. "Bacterial contamination of rural drinking water wells." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ35790.pdf.

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44

Urfer-Frund, Daniel. "Effects of oxidants on drinking water biofilters." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0022/NQ32865.pdf.

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45

Young, Candice. "Biosand filtration in household drinking water treatment." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=121334.

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Household water treatment technologies provide an interim solution to drinking water provision in areas which are not yet serviced by a continuous piped connection to a communal treated source. This is a critical problem in Amerindian communities in the Guyanese hinterland region, where remote location and low population density make improving environmental health infrastructure challenging. Biosand filtration is one promising household water treatment technology available for this purpose. The overall goal of this research was to better understand, and thus improve, the biosand filter for
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46

Whelton, Andrew James. "Temperature Effects on Drinking Water Odor Perception." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/36221.

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<p>Thirteen volunteer panelists were trained according to <i>Standard Method</i> 2170, flavor profile analysis (FPA). Following training these panelists underwent triangle test screening to determine whether or not they could detect the odorants used in this study. Following triangle testing, panelists underwent directional difference testing to determine if temperature affected odor perception when presented with two water samples. Following directional difference testing, panelists used FPA and evaluated water samples that contained odorants at either 25&deg;C or 45&deg;C. Samples contai
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47

Arnette, Verna J. "Cyanotoxin Removal in Drinking Water Treatment Processes." University of Cincinnati / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1258475751.

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48

Boe-Hansen, Rasmus. "Microbial growth in drinking water distribution systems /." Environment & Resources, DTU, 2001. http://www2.er.dtu.dk/publications/fulltext/2001/MR2001-075.pdf.

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Hassinger, Elaine. "Is There Lead In Your Drinking Water?" College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 1994. http://hdl.handle.net/10150/156937.

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1 pp.<br>The Environmental Protection Agency (EPA) recently issued a new law limiting lead and copper concentrations in drinking water. In large enough amounts, lead can damage your brain, kidneys and central nervous system. This publication briefly discusses; what damages can be caused by the lead in your drinking water, where it comes from, and how to remove it.
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50

Kelty, M., Phillip R. Scheuerman, and R. D. Blevins. "Mutagencity Testing of Commercially Bottled Drinking Water." Digital Commons @ East Tennessee State University, 1987. https://dc.etsu.edu/etsu-works/2883.

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