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Dissertations / Theses on the topic 'Thermophilic temperature'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Archer, Karen H. L. "Potential of thermophilic bioleaching, effect of temperature on the process performance." Master's thesis, University of Cape Town, 1997. http://hdl.handle.net/11427/9504.

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Includes bibliographies.<br>Bioleaching is a biohydrometallurgical process whereby mineral sulphides are metabolically oxidised by microorganisms, releasing precious metals encapsulated in them. This pre-treatment is based on the action of microorganisms affecting oxidation of reduced sulphur species and ferrous iron to sulphate and ferric iron respectively. Conventionally Thiobacillus ferrooxidans, Thiobacillus thiooxidans and Leptospirillum ferrooxidans are implemented in this process in the region of 40-45Â°C and pH 1.8. A high temperature (65- 800C) process, utiltising thermophilic archaea

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2

Pretz, Monika Gyöngy. "Thermophilic P-loop transport ATPases enzyme function and energetics at high temperature /." [S.l. : [Groningen : s.n.] ; University Library Groningen] [Host], 2006. http://irs.ub.rug.nl/ppn/299141012.

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3

Grassia, Gino Sebastian, and n/a. "The isolation, growth and survival of thermophilic bacteria from high temperature petroleum reservoirs." University of Canberra. Applied Science, 1995. http://erl.canberra.edu.au./public/adt-AUC20060712.131412.

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The microbial ecology of 45 high temperature (> 50 ° C) petroleum reservoirs was investigated by isolating and characterizing bacteria that were present in their produced fluids. Initial work was aimed at selecting a suitable high temperature petroleum reservoir for the study of natural microbial populations. Experimental work then focussed on establishing the physico-chemical conditions that prevail in the selected reservoir and on developing media and enrichment conditions for the isolation of microorganisms indigenous to the reservoir. The ability of reservoir bacteria to grow and survive u

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4

Inman, David C. "Comparative Studies of Alternative Anaerobic Digestion Technologies." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/35573.

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Washington D.C. Water and Sewage Authority is planning to construct a new anaerobic digestion facility at its Blue Plains WWTP by 2008. The research conducted in this study is to aid the designers of this facility by evaluating alternative digestion technologies. Alternative anaerobic digestion technologies include thermophilic, acid/gas phased, and temperature phased digestion. In order to evaluate the relative merits of each, a year long study evaluated the performance of bench scale digestion systems at varying solids retention times (SRT) and organic loading rates (OLR). The digesters

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5

Wilson, Christopher Allen. "The Effect of Steady-State Digestion Temperature on the Performance, Stability, and Biosolids Odor Production associated with Thermophilic Anaerobic Digestion." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/35771.

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<p> The performance and stability of a thermophilic anaerobic digestion system are inherently dependent on the engineered environment within each reactor. While the selection of operational parameters such as mixing, solids retention time, and digestion temperature are often selected on the basis of certain desirable outcomes such as the deactivation of human pathogens, these parameters have been shown to have a broad impact on the overall sludge digestion process. Since the current time-temperature requirements for biosolids pathogen reduction are most easily met at elevated digestion tempera

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6

Holden, James Francis. "Ecology, diversity, and temperature-pressure adaptation of the deep-sea hyperthermophilic Archaea Thermococcales /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/11044.

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7

Parsons, Bonita Grace. "Impacts of temperature and hydraulic retention tie on odours produced from authothermal thermophilic aerobic digestion." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/2734.

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Five different combinations of Hydraulic Retention Times (HRT) and temperatures were used in a two stage (feed and test reactor) Autothermal Thermophilic Aerobic Digestion System to assess the impact of these parameters on the production of odorous gases. The gases monitored were hydrogen sulphide, dimethyl sulphide, methyl mercaptan, ammonia, and amines. Other liquid parameters were also monitored in order to better understand the impacts of temperature and HRT. These parameters are total solids content, volatile solids content, volatile solids destruction, specific oxygen uptake rate, alkali

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8

Sundberg, Cecilia. "Improving compost process efficiency by controlling aeration, temperature and pH /." Uppsala : Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/2005103.pdf.

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9

Levén, Lotta. "Anaerobic digestion at mesophilic and thermophilic temperature : with emphasis on degradation of phenols and structures of microbial communities /." Uppsala : Dept. of Microbiology, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/2006116.pdf.

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10

Ho, Lily S. H. "First-stage and single-stage continuously stirred tank anaerobic digestion of synthetic complex wastewater and piggery wastewater (with emphasis on thermophilic temperature)." Thesis, Ho, Lily S.H. (2010) First-stage and single-stage continuously stirred tank anaerobic digestion of synthetic complex wastewater and piggery wastewater (with emphasis on thermophilic temperature). PhD thesis, Murdoch University, 2010. https://researchrepository.murdoch.edu.au/id/eprint/3952/.

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Single-stage continuously stirred tank reactor (CSTR) is commonly used in the anaerobic treatment of animal manure slurry, municipal sewage sludge and concentrated wastewaters containing a high proportion of biodegradable particulate organic materials at relatively long hydraulic retention times (HRTs) of 12 to 24 days. It is also commonly used as a holding tank to equilise the big variations in wastewater flow or pollution strength as well as for pre-acidification of wastewater. Its simplicity, ease of operation, low capital and maintenance costs are appealing features that made it a natural

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11

Okonkwo, Onyinye. "Enhancement of thermophilic dark fermentative hydrogen production and the use of molecular biology methods for bioprocess monitoring." Thesis, Paris Est, 2019. http://www.theses.fr/2019PESC2041.

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Le but de cette thèse était d'améliorer la production thermophile d'hydrogène noir fermenté en utilisant des stratégies microbiennes (bioaugmentation et co-cultures synthétiques) et en améliorant la compréhension de la dynamique de la communauté microbienne, particulièrement dans des conditions de stress telles que des températures fluctuantes et des concentrations élevées du substrat. Afin d'étudier les effets des fluctuations soudaines et à court terme de la température, des cultures de lots incubées initialement à 55 °C (témoin) ont été soumises à des variations de température vers le bas (

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12

Viana, Anderson Bezerra. "Tratamento anaeróbio de vinhaça em reator UASB operado em temperatura na faixa termofílica (55ºC) e submetido ao aumento progressivo de carga orgânica." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-26032007-125625/.

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Este projeto de pesquisa visou à investigação do desempenho do reator UASB (10 L de volume) no tratamento da vinhaça quando submetido a aumento progressivo da carga orgânica em condições termofílicas. A carga orgânica afluente média foi de 2,79 gDQO/L.dia (desvio de 1,5 gDQO/L.dia) e média efluente bruto de 1,24 gDQO/L.dia (desvio de 0,93 gDQO/L.dia). A operação atingiu o limite de carregamento de 6,5 gDQO/L.dia, limitado pela produção excessiva de ácidos voláteis totais que atingiram concentrações da ordem de 1.200 mgHac/L, tóxicas para biomassa metanogênica. A adaptação do lodo mesofílico às

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13

Hettwer, Stefan. "Tryptophansynthasen bei hohen Temperaturen Charakterisierung der thermostabilen Enzyme aus Thermotoga maritima und Etablierung eines Selektionssystems zur Stabilisierung thermolabiler Enzyme in Thermus thermophilus /." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=964136716.

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14

Godoi, Leandro Bardiviesso. "Busca por espécies da classe Thermotogae a partir de fluídos de um reservatório de petróleo onshore com alta temperatura e salinidade." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/76/76132/tde-08062015-170145/.

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Reservatórios de petróleo são ambientes únicos por apresentarem uma combinação de condições extremas referentes à temperatura, pressão e salinidade, e que sustentam o desenvolvimento de procariotos. Várias espécies dos Domínios Bactéria e Archaea têm sido isoladas deste ambiente, com destaque aos microrganismos redutores de sulfato (BRS), metanogênicos e fermentadores. Estes últimos utilizam como fonte de energia uma grande variedade de compostos orgânicos e uma grande parte de seus representantes em reservatórios pertence ao Filo Thermotogae. Estas bactérias apresentam uma estrutura caracterí

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15

Mabala, Jojo Charlie. "Aptitude d’écosystèmes anaérobies industriels à produire du méthane à partir d’éthanol en conditions psychrophile, mésophile et thermophile." Thesis, Montpellier, SupAgro, 2012. http://www.theses.fr/2012NSAM0020/document.

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Le processus de dégradation anaérobie de la matière organique est un phénomène naturel largement répandu sur terre (ex. marais, lacs, rizières, systèmes digestifs d'animaux et humains). Une très grande diversité microbienne est entretenue durant ce processus, traduisant une diversité de voies métaboliques impliquées. Lorsqu'elle est complète, la digestion anaérobie aboutie à la formation de biogaz (mélange de méthane et de dioxyde de carbone). En termes de biotechnologie, le traitement par voie anaérobie de pollutions organiques permet de réduire le volume de déchets en générant du méthane val

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16

Botta, Lívia Silva. "Hidrólise e fermentação de papel em lisímetro para recuperação de compostos de interesse biotecnológico." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-29032017-162756/.

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Neste trabalho avaliou-se a produção de compostos de interesse biotecnológico potenciais vetores energéticos a partir de papel em lisímetros (20L), usando-se consórcio microbiano enriquecido do fluido de rúmen. Para tanto, foi realizado um delineamento composto central (DCC) para verificar a influência de três variáveis independentes na conversão de papel sulfite a hidrogênio e outros compostos orgânicos em lisímetro de bancada. As variáveis testadas foram massa de papel (X1: 500g, 750g e 1000g), teor de umidade papel (X2: 50%, 65% e 80%), e temperat

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17

"Structural basis of why thermophilic enzymes are more sluggish at moderate temperatures." Thesis, 2008. http://library.cuhk.edu.hk/record=b6074651.

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It has been observed that thermophilic enzymes are often more sluggish at lower temperatures but comparable active as their mesophilic homologues at their corresponding living temperatures. Although these thermophilic enzymes exhibit high structural stability, the increased stability leads to a decreased flexibility of the thermophilic enzymes in return. To yield further advances in analysis of the interrelationships between flexibility and activity of enzymes, also the molecular basis of enzyme adaptation, we used a pair of thermo-meso acylphosphatase homologues with high level of similarity

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18

MAREČKOVÁ, Iva. "Postprandiální termofílie u gekončíka nočního (\kur{Eublepharis macularius})." Master's thesis, 2012. http://www.nusl.cz/ntk/nusl-115332.

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This thesis deals with the postprandial thermophilia by the species \kur{Eublepharis macularius}. Research took place in the laboratory conditions with artificially created temperature gradient. 11 individuals of different age, gender and weight were chosen for my experiment. Surveying were in progress 8 hours before and 16 hours after feeding of animals. The experiment was repeated 3 times as surveying and once as a blind test. Although the temperature preference during the individual surveyings was changing, the postprandial thermophilia was not proved by statistic assessment of the experime

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19

Liu, Pei-Chih, and 劉佩志. "Study on the Co-culture of Streptococcus thermophilus and Acidophilus Lactoba-cillus at Different Temperatures." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/u666m9.

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碩士<br>國立中興大學<br>化學工程學系所<br>106<br>This study focused on the effects of co-culture of Streptococcus thermophilus and acidophilic lactic acid bacteria at different temperatures. The detection methods used include dry weight method, turbidity measurement, plate coating counting method, glucose amount detection, and protein amount detection. The experimental results show that 40 °C is more suitable for Streptococcus thermophiles ; and the optimal temperature of Lactobacillus acidophilus should be 37 °C. The results show that when the two strains are co-cultured, the optimal temperature is 40 °C. I

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20

Starkuviene, Vytaute. "Identifizierung und Charakterisierung von thermostabilen Uracil Glykosylasen von Archaeon Methanobacterium thermoautotrophicum und Bakterium Thermus thermophilus." Doctoral thesis, 2001. http://hdl.handle.net/11858/00-1735-0000-0006-AC13-A.

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21

STARÁ, Zuzana. "Postprandiální termofýlie u trnorepa skalního Uromastyx acanthinurus." Master's thesis, 2011. http://www.nusl.cz/ntk/nusl-52653.

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Postprandial thermophily (PT) is an increase of preferred body temperature following food consumption. PT helps to maximize digestive functions. We compared the preferred body temperature after feeding in a species Uromastyx acanthinurus. We tested ten individuals and repeated each experiment twice. Our results clearly demonstrate the occurrence of postprandial thermophily in Uromastyx acanthinurus. The average temperature raised 3,82°C after feeding. We found the marginal significance of the relationship between temperature before and after feeding and the length of the individual.

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22

Shih, Tsung-Wei, and 施宗偉. "Stress responses at elevated temperature in thermophile Geobacillus thermocatenulatus NTU 03 and the property and application of its thermostable lipase." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/91842419018652528378.

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博士<br>國立臺灣大學<br>生化科技學系<br>99<br>Thermophiles have been reported to be a good thermostable enzyme source due to their living environment. Thermostable enzymes not only exhibit potential for industrial applications but are also used as protein structure models in studies on protein thermostability. In addition, because of the high temperature of these environments, many of their physical and chemical properties differ from those of lower-temperature environments. Hence, to deal with elevated temperature-induced changes in high temperature environmental conditions, the stress responses of thermop

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23

Mohamed, Mazhar Desouki Ali [Verfasser]. "Genomic analysis of the lysogeny module of temperate Streptococcus thermophilus bacteriophage TP-J34 / vorgelegt von Mazhar Desouki Ali Mohamed." 2010. http://d-nb.info/1010860089/34.

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24

Hettwer, Stefan [Verfasser]. "Tryptophansynthasen bei hohen Temperaturen : Charakterisierung der thermostabilen Enzyme aus Thermotoga maritima und Etablierung eines Selektionssystems zur Stabilisierung thermolabiler Enzyme in Thermus thermophilus / Stefan Hettwer." 2001. http://d-nb.info/964136716/34.

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25

Fitzpatrick, Duncan Stewart. "Energetic responses to transient high temperature stress in cyanobacteria. A dynamic system examined in vivo." Phd thesis, 2016. http://hdl.handle.net/1885/132668.

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This thesis investigated the energetic response of a moderately thermophillic cyanobacterium, Thermosynechococcus elongatus BP.1 (BP.1), to high-temperature damage. Previous published work has investigated the physiological impacts of high-temperature stress on BP.1, and has focused primarily on understanding the absolute functional stability of discrete cellular components, exposed to high temperatures. The majority of this work was conducted in vitro, on isolated components, or through the addition of artificial electron donors and acceptors to cells. The results have clearly shown that phot

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