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Dissertations / Theses on the topic 'Reducing bacteria'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Illergård, Josefin. "Development of New Bacteria-Reducing Surfaces." Licentiate thesis, KTH, Fibre and Polymer Technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10586.

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<p>In recent years, antibacterial surfaces have been a subject of increased interest. Especiallyinteresting are non-leaching, contact-active surfaces that physically disrupts the bacterialcell using immobilised cationic polymers. Thus the risks of bacterial resistance and discharge of hazardous biocides is minimised. The assembly of such surfaces is elaborate andusually involves organic solvents. Here, polyelectrolyte multilayers (PEM) are proposed as an effective surface modification method, with an overall goal of producing antibacterial cellulose fibres. The PEM process is based on physical

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2

Bobowski, S. "The serology of sulphate-reducing bacteria." Thesis, University of Essex, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376722.

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3

Silva, Sofia M. da. "Formate metabolism in sulfate reducing bacteria." Doctoral thesis, Universidade Nova de Lisboa. Instituto de Tecnologia Química e Biológica, 2011. http://hdl.handle.net/10362/6851.

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Dissertation presented to obtain the Ph.D degree in Biochemistry<br>Sulfate reduction is a very ancient metabolic process and it is responsible for more than 50% of carbon mineralization in anaerobic marine sediments. Sulfate-reducing organisms (SRO) are able to couple the reduction of sulfate to the oxidation of organic compounds, such as lactate or formate, or molecular hydrogen (H2), in order to obtain energy for cell synthesis and growth. Despite recent significant advances, a lot remains to be known about the mechanisms for energy conservation in SRO, and the specific components i

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4

Powell, Bridget Jill. "Genetic studies on the sulphate reducing bacteria." Thesis, Edinburgh Napier University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329225.

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5

Purdon, Scott Drummond. "Starvation survival response of sulphate-reducing bacteria." Thesis, University of Aberdeen, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340595.

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This thesis aims to investigate how SRB endure long periods of nutrient deprivation in the oligotrophic conditions of the North Sea. The presence of small cells in the marine environment has been extensively documented. These small cells are termed ultramicrobacteria, and are defined as being less than 0.3 μm in diameter. The formation of small cells by SRB was postulated to facilitate penetration of SRB deep within oil reservoirs, during water injection, exacerbating SRB associated problems. These studies revealed that a maximum of 15% of starving SRB populations formed UMB. Cultures starved

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6

Venceslau, Sofia Cristina dos Santos. "Electron transfer chains in sulfate reducing bacteria." Doctoral thesis, Universidade Nova de Lisboa. Instituto de Tecnologia Química e Biológica, 2011. http://hdl.handle.net/10362/9779.

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Dissertação para a obtenção de grau de doutor em Bioquímica pelo Instituto de Tecnologia Química e Biológica. Universidade Nova de Lisboa.<br>The dissimilatory reduction of sulfur compounds (i.e.sulfate/sulfite reduction and sulfur disproportionation) is considered to have been one of the earliest metabolic processes on Earth able to sustain life. Dissimilatory sulfate reduction, using sulfate as an electron acceptor and organic compounds or hydrogen as electron donors, plays a significant role in the global sulfur and carbon cycles.(...)<br>Fundação para a Ciência e a Tecnologia (FCT)

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7

Kerin, Elizabeth Johanna. "Mercury methylation in dissimilatory iron reducing bacteria." College Park, Md.: University of Maryland, 2007. http://hdl.handle.net/1903/7385.

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Thesis (M.S.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Marine, Estuarine, Environmental Sciences Graduate Program. 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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8

Yeh, Emily. "Raw sludge as substrate for sulphate-reducing bacteria." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0007/MQ45431.pdf.

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9

Pitcher, Maxton Charles Leighton. "Sulphate-reducing bacteria, sulphur metabolism and ulcerative colitis." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263562.

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10

Rioux, Jean-Philippe. "Microbial activity of iron-reducing bacteria and sulfate-reducing bacteria isolated from mine tailings in the presence of various electron donors." Thesis, University of Ottawa (Canada), 2004. http://hdl.handle.net/10393/26757.

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Two abandoned mine tailings sites (Calumet near Ottawa, and Potter near Timmins, Ontario) have been shown to support active populations of iron- (IRB) and sulfate-reducing bacteria (SRB). The competition between IRB and SRB for similar electron donors was however never assessed. The present study looked into the potential competition between IRB and SRB isolated from those 2 sites since they represent different pH conditions and mineralogy. The Potter tailings are acidic to slightly acidic and contain large quantities of sulfides, whereas the Calumet tailings are alkaline and contain less pyri

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11

Sheth, Ken S. "Biological treatment of heavy metals using sulfate reducing bacteria." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0019/MQ52663.pdf.

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12

Cheung, Chin Wa Sunny. "Biofilms of marine sulphate-reducing bacteria on mild steel." Thesis, University of Portsmouth, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241657.

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13

Cadby, Ian Thomas. "The regulation of gene expression in sulphate reducing bacteria." Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/5212/.

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\(Desulfovibrio desulfuricans\) ATCC27774 can use both nitrate and sulphate as terminal electron acceptors for growth. Contrary to expectations, the less favourable terminal electron acceptor, sulphate, is utilised preferentially. It has been proposed that the nap gene cluster of \(D. desulfuricans\), which encodes nitrate reduction, is regulated at the transcription level by both sulphate repression and nitrate induction. Transcription factors of the CRP/FNR family have been implicated in this regulation. At the start of this study a bioinformatic analysis identified five CRP-homologues in \(

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14

Farooqui, Saad M. "Aromatic Hydrocarbon Degradation by Haloalkaliphilic and Metal Reducing Bacteria." Thesis, Griffith University, 2014. http://hdl.handle.net/10072/366085.

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A wide variety of contaminants have been introduced in the environment by anthropogenic activities or natural processes. Pollution not only affects humans but also severely hampers the ecosystem by destroying habitats of the affected flora and fauna. In addition, a variety of environments such as subsurface aquifers, oceans, anoxic soils, sediments and soda lakes have been affected. Contaminants such as polycyclic aromatic hydrocarbons (PAHs) are of significance as they have been identified as mutagenic, carcinogenic and teratogenic. Methods such as use of dispersants, solvent mixtures and d

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15

Mather, Ian Duncan. "The effect of growth on the biomaker and stable isotope composition of environmentally important microorganisms." Thesis, University of Bristol, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266975.

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16

Wang, Ching Shan Teixeira Fabricio B. "Clinical efficiency of 2% chlorhexidine gel in reducing intracanal bacteria." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2007. http://dc.lib.unc.edu/u?/etd,947.

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Thesis (M.S.)--University of North Carolina at Chapel Hill, 2007.<br>Title from electronic title page (viewed Dec. 18, 2007). "... in partial fulfillment of the requirements for the degree of Master of Science in the School of Dentistry (Endodontics)." Discipline: Endodontics; Department/School: Dentistry.

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17

Isa, Mohamed Hasnain. "Molybdate as a sulphate reducing bacteria inhibitor in anaerobic processes." Thesis, University of Newcastle Upon Tyne, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263018.

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18

Walsh, Sally. "The isolation and starvation-survival of thermophilic sulphate-reducing bacteria." Thesis, University of Exeter, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307293.

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19

Paul, Varun. "Electricity generation and ethanol production using iron-reducing, haloalkaliphilic bacteria." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2009. http://scholarsmine.mst.edu/thesis/pdf/Paul_09007dcc8069dfe5.pdf.

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Thesis (M.S.)--Missouri University of Science and Technology, 2009.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed August 10, 2009) Includes bibliographical references (p. 58-64).

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20

Riddin, Tamsyn Louise. "Investigating the enzymatic mechanism of platinum nanoparticle synthesis in sulfate-reducing bacteria." Thesis, Rhodes University, 2009. http://hdl.handle.net/10962/d1004024.

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Efforts to discover an efficient yet environmentally friendly mode of metal nanoparticle (NP) synthesis are increasing rapidly. A ‘green’ route that avoids the high costs, toxic wastes and complicated protocols associated with chemical synthesis methods is therefore highly sought after. A biologically based protocol will provide the possibility of gaining control over the mechanism merely by manipulating the experimental conditions of the system. Given that the properties of nanoparticles are highly dependant on the morphology of the particles themselves, this mechanistic control will provide

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21

Drury, Elliott C. "Stress response and hypothetical genes in Desulfovibrio vulgaris Hildenborough." Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/5719.

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Thesis (M.S.)--University of Missouri-Columbia, 2008.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. "December 2008" Includes bibliographical references.

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22

McLean, K. M. "Ecological studies on sulphate-reducing bacteria in offshore oil storage systems." Thesis, University of Aberdeen, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377605.

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The object of this thesis was to examine microbial interactions in offshore crude oil storage systems with special reference to the role played by the sulphate-reducing bacteria (SRB). The aim was to characterise the SRB present in such systems; to isolate and characterise crude oil-degrading bacteria and to develop simple models of the system. SRB were shown to be present in samples from offshore by the detection of high levels of SRB and sulphide, and of depleted sulphate levels. SRB were enriched for, isolated and characterised from offshore oil storage facilities and pure cultures of the o

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23

King, D. H. "Modification of sedimentary communities of nitrate-reducing bacteria by environmental perturbations." Thesis, University of Essex, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373211.

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24

Rusmana, Iman. "Physiology of nitrous oxide production in estuarine dissimulative nitrate reducing bacteria." Thesis, University of Essex, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268867.

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25

Mota, Cristiano de Sousa. "Characterization of molybdenum and tungsten formate dehydrogenases from sulfate reducing bacteria." Doctoral thesis, Faculdade de Ciências e Tecnologia, 2011. http://hdl.handle.net/10362/6688.

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Dissertação apresentada para a obtenção do Grau de Doutor em Bioquímica, especialidade Bioquímica-Física pela Universidade Nova de Lisboa, Faculdade de Ciências e Tecnologia<br>Fundação para a Ciência e Tecnologia - funding (Grant SFRH/BD/32478/2006).

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26

Sanyahumbi, Douglas. "Capsule immobilisation of sulphate-reducing bacteria and application in disarticulated systems." Thesis, Rhodes University, 2004. http://hdl.handle.net/10962/d1003994.

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Biotechnology of sulphate reducing bacteria has developed rapidly in recent years with the recognition of their extensive and diverse biocatalytic potential. However, their application in a number of areas has been constrained due to problems including poor cell retention within the continuous bioprocess reactor environment, and contamination of the treated stream with residual organic feed components and cell biomass. These problems have so far excluded the application of biological sulphate reduction in the treatment of ‘clean’ inorganic waste streams where components such as sulphate, acidi

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27

Yupanqui, Zaa Carmen Lourdes. "Dechlorinating and Iron Reducing Bacteria Distribution in a Trichloroethene Contaminated Aquifer." DigitalCommons@USU, 2008. https://digitalcommons.usu.edu/etd/41.

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The Operable Unit 5 (OU 5) area of Hill Air Force Base currently has two trichloroethene-contaminated groundwater plumes underneath residential areas in Sunset and Clinton, Utah. Bioremediation by biological reductive dechlorination can be an important mechanism for the removal of chlorinated compounds from the plumes. The presence of suitable bacteria to carry on reductive dechlorination is the key in the bioremediation process. The goal of this study was to determine the distribution and population density of the 16S rRNA genes of Bacteria, Dehalococcoides ethenogenes, Desulfuromonas michiga

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28

D'Aoust, Patrick Marcel. "Stormwater Retention Ponds: Hydrogen Sulfide Production, Water Quality and Sulfate-Reducing Bacterial Kinetics." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/35562.

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Stormwater retention basins are an integral component of municipal stormwater management strategies in North America. The province of Ontario’s Ministry of the Environment and Climate Change obligates land developers to implement stormwater management in their land use and development plans to mitigate the effects of urbanization (Bradford and Gharabaghi, 2004). When stormwater retention ponds are improperly designed or maintained, these basins can fail at improving effluent water quality and may exasperate water quality issues. Intense H2S production events in stormwater infrastructure is a

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29

Batmanghelich, Farhad. "Effect of mixed denitrifying and sulfate reducing bacterial biofilms on corrosion behavior of cast iron." University of Toledo / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1451311653.

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30

Xu, Lichong. "Anaerobic corrosion of mild steel in seawater induced by sulfate-reducing bacteria (SRB)." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk:8888/cgi-bin/hkuto%5Ftoc%5Fpdf?B2327315x.

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31

Halsall, John Frederick. "The prevention of biological corrosion and fouling of metals : a study of corrosion processes and the electrochemical methods of controlling corrosion and fouling." Thesis, Bangor University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318073.

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32

Babbitt, Aaron. "MOLECULAR PROFILING OF THE MICROBIAL COMMUNITY AND SULFATE- REDUCING BACTERIA ASSOCIATED WITH SIX PILOT SCALE PASSIVE SULFATE- REDUCING BIOREACTORS." OpenSIUC, 2015. https://opensiuc.lib.siu.edu/theses/1657.

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Acid mine drainage (AMD) is an environmental hazard across the world. Passive bioreactors utilizing sulfate-reducing bacteria to remediate AMD impacted sites are a promising solution due to their low cost and minimal maintenance. This study profiled the microbial community associated with six in situ, pilot scale bioreactors that were constructed with varying ratios of simple and complex organic substrate and exposed to AMD. Samples were analyzed nine and fourteen months post assembly to ascertain long-term performance. The overall microbial and sulfate-reducing communities were analyzed by 16

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33

Willis, Caroline. "The physiology and ecology of sulphate-reducing bacteria in the human colon." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.439156.

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34

Daly, Kristian. "Investigation of sulfate-reducing bacteria in landfill sites using molecular biological tools." Thesis, University of Liverpool, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366711.

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35

Leu, Jyh-Yih. "Isolation, characterisation, and identification of sulphate-reducing bacteria from oil field environments." Thesis, University of Aberdeen, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296018.

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The sulphidogenic activity of sulphate-reducing bacteria (SRB) is of great economic importance to many industrial sectors, since it is strongly implicated in a range of problems, including the souring of oil reservoirs and the anaerobic corrosion of mild steel. Despite increasing reports of SRB activity throughout oil fields, little attention has yet been given to further characterisation and identification of those SRB species involved. In an attempt to understand the role of these organisms in the oil field environments this work is to isolate, characterise, and identify SRB present in a ran

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36

Methvin, Rachel M. "Microbial Ecology of Acanthamoeba polyphaga and Sulfate-Reducing Bacteria in Premise Plumbing." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/32713.

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Great advances have been made in the last 100 years in the effort to provide safe and reliable potable water. Unfortunately, organisms surviving the water treatment process still cause illnesses in the population. Acanthamoebae are ubiquitous in the environment and are resistant to commonly used disinfection methods. In addition to being pathogenic on their own, Acanthamoeba spp. are capable of acting as a host to pathogenic bacteria in potable water. The amoebae provide the bacteria with protection from chemical and physical means of disinfection. In this way many pathogens that would othe

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37

McKenzie, Joann. "The involvement of sulphate-reducing bacteria in a heterogeneous marine laboratory model." Thesis, University of Aberdeen, 1988. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU027804.

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Sulphate-reducing bacteria are known to play an important role in anaerobic corrosion processes. They are often found associated with metal surfaces and their activities can be of particular economic significance in many industrial areas. The aim of this thesis was to investigate anaerobic corrosion of metals by the sulphate-reducing bacteria in the presence of mixed microbial consortia in various heterogeneous marine environments. A laboratory model system was designed, based on part of an offshore oil storage system. An extensive bacteriological analysis and comprehensive study of the conseq

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38

Harrington, Clare. "Development of nucleic acid methods for the identification of sulphate-reducing bacteria." Thesis, University of Aberdeen, 1995. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU078324.

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This study aimed to investigate the feasibility of using several genetic techniques for identification of sulphate-reducing bacteria. A group of eight type strains (seven of which were <I>Desolfovibrio</I>) were used as test group for every method except RSGP, for which an established set of oil field isolates was used. Ribotyping involves restriction fragment length polymorphism (RFLP) analysis of ribosomal RNA (rRNA) operons. Hybridisation of <I>Eco </I>RI-digested genomic DNA to a PCR-amplified (500 bp) rRNA gene product resulted in generation of discriminatory RFLP patterns for all but two

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39

Allison, Lesley J. "An investigation of the starvation survival response in the sulphate-reducing bacteria." Thesis, University of Aberdeen, 1992. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU065738.

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Presented results suggest that Desulfovibrio salexigens decreased in size in response to starvation. This size decrease was measured using a laser particle sizer which proved to be sufficiently sensitive for this purpose. Reduction in cell size occurred much quicker and to a greater extent when trace metals were removed from the starvation media. The survival of this organism also appeared to depend on the starvation media used with cells retaining 100% viability when starved in the absence of trace metals. Viability rapidly decreased when starved in the presence of trace metals. Of the starvi

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40

Sandeep, Pareek. "DEGRADATION OF LIGNOCELLULOSE UNDER ANAEROBIC CONDITIONS : THE EFFECT OF SULFATE REDUCING BACTERIA." Kyoto University, 2000. http://hdl.handle.net/2433/180922.

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41

Hong, Young. "Bioleaching of Gold and Copper from Electronic Waste Using Sulphate Reducing Bacteria." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/20960.

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This thesis examined a novel hybrid method to recover gold and copper from electronic waste (e-waste) based on combination of biological and chemical generation of thiosulphate reagent. E-waste is growing waste stream rich with copper and gold. Thiosulphate is an effective leaching reagent to recover these metals however it is hampered by high cost deeming it economically unfeasible. Currently there are no alternative technologies that are able to overcome this limitation. To establish the need for this new hybrid method, we examined the economics of e-waste and current available technologies.

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42

Sen, Anna. "Acidophilic sulphate reducing bacteria : candidates for bioremediation of acid mine drainage pollution." Thesis, Bangor University, 2001. https://research.bangor.ac.uk/portal/en/theses/acidophilic-sulphate-reducing-bacteria--candidates-for-bioremediation-of-acid-mine-drainage-pollution(b587cec7-69c0-4e97-a17c-cca7232802de).html.

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43

徐立沖 and Lichong Xu. "Anaerobic corrosion of mild steel in seawater induced by sulfate-reducing bacteria (SRB)." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31242546.

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Zhang, Tong. "Characteristics of sulfate-reducing bacteria biofilm and other microbial communities in wastewater treatment." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B2327279x.

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Hu, An. "Investigation of sulfate-reducing bacteria growth behavior for the mitigation of microbiologically influenced corrosion (MIC)." Ohio : Ohio University, 2004. http://www.ohiolink.edu/etd/view.cgi?ohiou1176404403.

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Zhang, Tong, and 張彤. "Characteristics of sulfate-reducing bacteria biofilm and other microbial communities in wastewater treatment." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31242686.

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47

Betancourt, Amaury Pedro III. "A preliminary characterization of mercury uptake by the sulfate-reducing bacteria Desulfovibrio desulfuricans." FIU Digital Commons, 2011. http://digitalcommons.fiu.edu/etd/1649.

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The focus of this research is to determine if a relationship exists between the stability constant and the initial uptake rate of a mercury species by bacteria. Cultures of the sulfate-reducing bacteria (SRB) strain Desulfovibrio desulfuricans G20 were washed with a bicarbonate buffer solution containing either lactate and sulfate or pyruvate and fumarate. The washed cell solutions were then spiked with either mercury bound to natural organic matter (Hg-NOM) or neutral mercury chloride (HgCl2), followed by sampling over time to provide kinetic data. Despite the significantly different stabilit

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48

Meyers, Emily. "Phosphate Cycling in the Presence of Biogenic Iron Oxides and Iron-Reducing Bacteria." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37306.

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Nutrient pollution from industrial activity is an environmental problem that persists in water bodies near urban settings, and has been a primary contributor to eutrophication, bacterial contamination, and harmful algal blooms. Biogenic iron oxides offer a potential solution to the treatment of lakes and rivers containing high concentrations of phosphate, the limiting nutrient in aquatic systems. Soluble ferrous iron can act as an electron donor for iron-oxidizing bacteria, which thrive in low-oxygen environments. This results in the formation of insoluble ferric iron minerals, ideal ads

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49

Kajenthira, Arani. "Mercury immobilisation in situ : Interactions between charcoal, nanoscale iron, and sulphate-reducing bacteria." Thesis, University of Oxford, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.533855.

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Devine, Carol A. "16S ribosomal DNA analysis of microbial populations associated with hydrocarbon reservoirs." Thesis, University of Aberdeen, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312360.

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The sulphate-reducing bacteria (SRB) are a diverse group of organisms which use sulphate as a terminal electron acceptor and produce the highly toxic gas, hydrogen sulphide. The deleterious effects of this include hydrocarbon reservoir souring, formation damage and microbial corrosion. The SRB are of major economic importance to the oil industry. However, knowledge of the microbial ecology of the deep subsurface remains limited. The aim of this project was to investigate whether organisms are indigenous to the hydrocarbon formation and/or are introduced during drilling operations. A range of m

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