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Journal articles on the topic "SRB"

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Huber, B., J. E. Drewes, K. C. Lin, R. König, and E. Müller. "Revealing biogenic sulfuric acid corrosion in sludge digesters: detection of sulfur-oxidizing bacteria within full-scale digesters." Water Science and Technology 70, no. 8 (September 13, 2014): 1405–11. http://dx.doi.org/10.2166/wst.2014.371.

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Biogenic sulfuric acid corrosion (BSA) is a costly problem affecting both sewerage infrastructure and sludge handling facilities such as digesters. The aim of this study was to verify BSA in full-scale digesters by identifying the microorganisms involved in the concrete corrosion process, that is, sulfate-reducing (SRB) and sulfur-oxidizing bacteria (SOB). To investigate the SRB and SOB communities, digester sludge and biofilm samples were collected. SRB diversity within digester sludge was studied by applying polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) targeting the dsrB-gene (dissimilatory sulfite reductase beta subunit). To reveal SOB diversity, cultivation dependent and independent techniques were applied. The SRB diversity studies revealed different uncultured SRB, confirming SRB activity and H2S production. Comparable DGGE profiles were obtained from the different sludges, demonstrating the presence of similar SRB species. By cultivation, three pure SOB strains from the digester headspace were obtained including Acidithiobacillus thiooxidans, Thiomonas intermedia and Thiomonas perometabolis. These organisms were also detected with PCR-DGGE in addition to two new SOB: Thiobacillus thioparus and Paracoccus solventivorans. The SRB and SOB responsible for BSA were identified within five different digesters, demonstrating that BSA is a problem occurring not only in sewer systems but also in sludge digesters. In addition, the presence of different SOB species was successfully associated with the progression of microbial corrosion.
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Abraham, M. C., A. Ruete, and Y. C. B. Brandt. "260 BREED INFLUENCES OUTCOME OF IN VITRO PRODUCTION OF EMBRYOS IN CATTLE." Reproduction, Fertility and Development 22, no. 1 (2010): 287. http://dx.doi.org/10.1071/rdv22n1ab260.

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Fertility among cattle breeds can vary. The Swedish Red and White dairy breed (SRB) has been systematically bred for good reproductive traits since 1970 and might therefore have retained a better oocyte quality than other dairy breeds. The aim of this study was to determine if the breed of oocyte donor affects the development of embryos using IVM, IVF, and IVC. Oocyte developmental competence in vitro was compared between the SRB (n = 77 animals), the Swedish Holstein breed (SLB, n = 49), and beef breeds (mixed breeds, n = 97). The oocytes (n = 1380, 18 batches) were aspirated from abattoir-derived ovaries from healthy animals with known identity. Statistical analyses were performed using Student’s t-tests and generalized linear mixed models with random effects. The time of collection in relation to slaughter and time of day, as well as aspiration and the following in vitro procedures, were consistent throughout the experiment. The oocytes were matured, fertilized (frozen semen), and cultured according to conventional protocols without serum. Data are presented as mean ± SEM. The SRB and SLB groups were comparable in age [SRB: 66% cows (over 3 years of age), 27% young cows (calved at least once but not over 3 years of age), and 7% heifers; SLB: 63% cows, 20% young cows, and 17% heifers], carcass classification (scale 1-15, where 15 = highest amount of muscle; SRB: 3.8 ± 0.2, SLB 3.5 ± 0.3), body fat (scale 1-15, where 15 =highest amount of fat; SRB: 8.4 ± 0.4, SLB 8.8 ± 0.5) and kilograms of carcass weight (SRB: 297.3±7.4, SLB: 311.6 ± 9.0). The beef group had a significantly higher mean carcass classification (6.2 ± 0.2) and a different age distribution with a higher proportion of heifers (38% cows, 12% young cows, and 50% heifers), but was comparable in body fat content (8.5 ± 0.4) and kilograms of carcass weight (310.9 ± 7.9). Cleavage rate, number of embryos developed beyond the 2-cell stage by 44 h post-fertilization, and the number of blastocysts developed by Days 7 and 8 were noted. All blastocysts were graded and stained with Hoechst 33 342 and the number of nuclei was determined. Cleavage rate was not different among the breeds (SRB: 71.9 ± 0.03%, SLB: 72.5 ± 0.02%, beef: 73.9 ± 0.03%). The percentage of embryos developed beyond 2-cells (from cleaved) did not differ between the beef and SRB (beef: 65.1 ± 6.1%; SRB: 70.4 ± 4.9%) but SLB was significantly greater than than the other breeds (75.4 ± 4.5%). The percentage of blastocysts developed by Day 8 was significantly higher in the beef (21.1 ± 2.7%) and SRB (23.3 ± 3.5%) breeds compared with the SLB (12.5 ± 2.4%). There was no significant difference in blastocyst grades among breeds (scale 1-4, where 1 = highest grade; SRB: 2.4 ± 0.1, SLB: 2.4 ± 0.2, beef: 2.1 ± 0.2), but the number of nuclei in Day 8 blastocysts was significantly lower in the SLB (SRB: 98.9 ± 7.7, SLB: 79.2 ± 8.7, beef: 101.4 ± 6.9). In conclusion, the breed of origin of the oocytes is an important factors affecting the development during in vitro embryo production in cattle. Funded by Formas.
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Nicomrat, Duongruitai. "Decline in Sulfate Reducing Bacterial Consortia by the Sulfur Oxidizing Bacterial Activity." Applied Mechanics and Materials 866 (June 2017): 140–43. http://dx.doi.org/10.4028/www.scientific.net/amm.866.140.

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In anaerobic environment, dominant sulfate reducing bacteria (SRB) consortia are found to cause many serious problems to the oil such as sour oil, hydrogen sulfide (H2S), and metal corrosion. They are obligatory anaerobes using sulfate, thiosulfate and sulfites as final electron acceptors and use organic acids or alcohols as a carbon source. In the aerobic system, other dominant niches are sulfur-oxidizing bacteria (SOB) playing role in biological oxidation of hydrogen sulfide. These SOB convert H2S into elemental sulfur (S0) by partial oxidation. Since the levels of reduction and oxidation are dependent on the oxygen concentration. In the condition of limited oxygen, sulfate generated by SOB can also be contributed to the reduction of oxygen which encourages SRB proliferation in anaerobic environment. In this research, we were interested to manage the conditions to control the dominant niches by management of oxygen levels. In the experiment, the concentration of sulfate concentration, acidity, sulfide were determined to understand the microbial activity. The results showed after cocultures of SRB and SOB niches in the present of oxygen, the activity of SRB was prevented since a decrease in H2S product but an increase in sulfate concentration were observed. This revealed a promising niches of SOB isolates in the presence of oxygen and active in high sulfide removal. These data indicated the situation suitable for either SOB or SRB community is dependent on oxygen concentration. The management of SOB community can be used as an alternative method to remove contaminating H2S from the system.
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Grigoryan, Aleksandr A., Sabrina L. Cornish, Brenton Buziak, Shiping Lin, Adriana Cavallaro, Joseph J. Arensdorf, and Gerrit Voordouw. "Competitive Oxidation of Volatile Fatty Acids by Sulfate- and Nitrate-Reducing Bacteria from an Oil Field in Argentina." Applied and Environmental Microbiology 74, no. 14 (May 23, 2008): 4324–35. http://dx.doi.org/10.1128/aem.00419-08.

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ABSTRACT Acetate, propionate, and butyrate, collectively referred to as volatile fatty acids (VFA), are considered among the most important electron donors for sulfate-reducing bacteria (SRB) and heterotrophic nitrate-reducing bacteria (hNRB) in oil fields. Samples obtained from a field in the Neuquén Basin, western Argentina, had significant activity of mesophilic SRB, hNRB, and nitrate-reducing, sulfide-oxidizing bacteria (NR-SOB). In microcosms, containing VFA (3 mM each) and excess sulfate, SRB first used propionate and butyrate for the production of acetate, which reached concentrations of up to 12 mM prior to being used as an electron donor for sulfate reduction. In contrast, hNRB used all three organic acids with similar kinetics, while reducing nitrate to nitrite and nitrogen. Transient inhibition of VFA-utilizing SRB was observed with 0.5 mM nitrite and permanent inhibition with concentrations of 1 mM or more. The addition of nitrate to medium flowing into an upflow, packed-bed bioreactor with an established VFA-oxidizing SRB consortium led to a spike of nitrite up to 3 mM. The nitrite-mediated inhibition of SRB led, in turn, to the transient accumulation of up to 13 mM of acetate. The complete utilization of nitrate and the incomplete utilization of VFA, especially propionate, and sulfate indicated that SRB remained partially inhibited. Hence, in addition to lower sulfide concentrations, an increase in the concentration of acetate in the presence of sulfate in waters produced from an oil field subjected to nitrate injection may indicate whether the treatment is successful. The microbial community composition in the bioreactor, as determined by culturing and culture-independent techniques, indicated shifts with an increasing fraction of nitrate. With VFA and sulfate, the SRB genera Desulfobotulus, Desulfotignum, and Desulfobacter as well as the sulfur-reducing Desulfuromonas and the NR-SOB Arcobacter were detected. With VFA and nitrate, Pseudomonas spp. were present. hNRB/NR-SOB from the genus Sulfurospirillum were found under all conditions.
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Nurjanna, Nurjanna, and Ahmadirrahman Fajrihanif. "PENENTUAN BAKTERI SULFAT REDUCING BACTERIA (SRB) DAN SULFUR OXIDAZING BACTERIA (SOB) DENGAN MENGGUNAKAN PELARUT YANG BERBEDA." Media Akuakultur 5, no. 1 (June 30, 2010): 47. http://dx.doi.org/10.15578/ma.5.1.2010.47-50.

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Pengamatan ini bertujuan untuk mengetahui populasi bakteri pereduksi sulfat dan pengoksidasi sulfur pada sedimen tambak menggunakan larutan pengencer yang berbeda. Sampel sedimen sebanyak 5 g digerus dengan lumpang penggerus yang steril hingga homogen. Dua jenis larutan pengencer yang steril yaitu larutan garam fisiologis (NaCl 0,85%) 9 mL dan larutan Artificial Sea Water (ASW) atau larutan air laut buatan 9 mL disiapkan. Selanjutnya masing-masing 1 g sedimen tambak yang telah homogen dimasukkan ke dalam larutan pengencer tersebut, kemudian divortex hingga homogen. Setelah homogen masing-masing diambil 100 L, kemudian dimasukkan dalam media penumbuh bakteri SRB dan SOB dalam microplate 24 lubang yang telah disiapkan sebelumnaya. Biakan tersebut kemudian diinkubasi secara Anaerobik selama 12 hari untuk bakteri SRB dan 14 hari untuk SOB. Pengamatan populasi bakteri SRB dilakukan dengan melihat adanya perubahan warna media dari warna merah muda menjadi warna hitam, sedangkan bakteri SOB dapat dilihat dengan adanya perubahan dari warna biru muda menjadi merah bata setelah penambahan larutan kalium iodid (larutan KI 1%) sebanyak 1 mL/lubang microplate. Hasil percobaan menunjukkan bahwa populasi bakteri SRB dengan menggunakan pelarut ASW dan garam fisiologis relatif sama terutama pada percobaan periode II dan IV. Sedangkan populasi bakteri SOB relatif lebih tinggi pada penggunaan pelarut garam fisiologis (NaCl 0,85%) dibanding pelarut ASW.
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Bricmont, J., and A. Kupiainen. "Infinite-dimensional SRB measures." Physica D: Nonlinear Phenomena 103, no. 1-4 (April 1997): 18–33. http://dx.doi.org/10.1016/s0167-2789(96)00250-3.

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Ruelle, David. "Differentiation of SRB States." Communications in Mathematical Physics 187, no. 1 (July 1, 1997): 227–41. http://dx.doi.org/10.1007/s002200050134.

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Yin, Juan, Chao-Bing Deng, Hongxiang Zhu, Jianhua Xiong, and Zhuo Sun. "Effective Removal of Lead from Solution by Sulfate Reducing Bacteria Cultured with Sugar Byproducts." Journal of Biobased Materials and Bioenergy 14, no. 3 (June 1, 2020): 384–95. http://dx.doi.org/10.1166/jbmb.2020.1975.

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Sulfate reducing bacteria (SRB) are widely used to remove heavy metals because of their high efficiency. However, the metabolic processes of SRB require additional carbon sources, and the development of low-cost carbon sources has gradually attracted attention. The utilization of sugar byproduct resources, as the low-cost carbon sources, has great practical significance for environmentally sustainable development in Guangxi, China. This study aims to cultivate SRB with low-cost sugar byproducts, apply them to controlling a lead-polluted environment, and study the effects and mechanisms of controlling lead pollution. The research results show that the best culture effect of SBR can be obtained by mixing the filter mud and vinasse in a ratio of 1:1 to 3:1. SRB have average lead removal rates of more than 96.97% in solutions with different lead concentration of 10∼100 mg/L, and SRB have a higher tolerance to high concentrations of lead due to factors such as the organic substance composition of sugar byproducts and the porosity of filter mud. Scanning electron microscopy combined with energy dispersive spectrometry and X-ray diffraction analysis show that SRB mainly cause Pb2+ to form PbS precipitate through redox reactions to remove lead from the solution. Therefore, low-cost filters of a mud and vinasse mixture can be used as a medium for SRB and exhibit high heavy metal removal efficiency, thus providing a new utilization of filter mud and vinasse.
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Hubert, Casey, and Gerrit Voordouw. "Oil Field Souring Control by Nitrate-Reducing Sulfurospirillum spp. That Outcompete Sulfate-Reducing Bacteria for Organic Electron Donors." Applied and Environmental Microbiology 73, no. 8 (February 16, 2007): 2644–52. http://dx.doi.org/10.1128/aem.02332-06.

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ABSTRACT Nitrate injection into oil reservoirs can prevent and remediate souring, the production of hydrogen sulfide by sulfate-reducing bacteria (SRB). Nitrate stimulates nitrate-reducing, sulfide-oxidizing bacteria (NR-SOB) and heterotrophic nitrate-reducing bacteria (hNRB) that compete with SRB for degradable oil organics. Up-flow, packed-bed bioreactors inoculated with water produced from an oil field and injected with lactate, sulfate, and nitrate served as sources for isolating several NRB, including Sulfurospirillum and Thauera spp. The former coupled reduction of nitrate to nitrite and ammonia with oxidation of either lactate (hNRB activity) or sulfide (NR-SOB activity). Souring control in a bioreactor receiving 12.5 mM lactate and 6, 2, 0.75, or 0.013 mM sulfate always required injection of 10 mM nitrate, irrespective of the sulfate concentration. Community analysis revealed that at all but the lowest sulfate concentration (0.013 mM), significant SRB were present. At 0.013 mM sulfate, direct hNRB-mediated oxidation of lactate by nitrate appeared to be the dominant mechanism. The absence of significant SRB indicated that sulfur cycling does not occur at such low sulfate concentrations. The metabolically versatile Sulfurospirillum spp. were dominant when nitrate was present in the bioreactor. Analysis of cocultures of Desulfovibrio sp. strain Lac3, Lac6, or Lac15 and Sulfurospirillum sp. strain KW indicated its hNRB activity and ability to produce inhibitory concentrations of nitrite to be key factors for it to successfully outcompete oil field SRB.
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Tare, V., and P. C. Sabumon. "Application of Sulfate-Reducing and Sulfide-Oxidizing Bacterial Symbiosis for Wastewater Treatment." Water Quality Research Journal 30, no. 2 (May 1, 1995): 305–24. http://dx.doi.org/10.2166/wqrj.1995.029.

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Abstract This investigation attempted to advance the state of the art of the process which utilizes the symbiotic relationship between the sulfate-reducing bacteria (SRB) and sulfide oxidizing bacteria (SOB) for degradation of organic matter present in wastewater. Major emphasis has been on the development of the desired microbial system without any external seed and comparative evaluation of the two types of multistage reversing flow bioreactor (MRB) systems. Biological vessels (BVs) in the MRB systems simulate conditions which correspond to configurations described as upflow sludge blanket and stationary fixed film. Two bench-scale models – one designed to achieve self granulation of sludge (SGS), and the second designed to promote growth of SRB/SOB on additional nonreactive surface – were set up and operated over a period of 4 months. Domestic wastewater supplemented with organic matter from sugar cane molasses was used as feed to develop the desired microbial population. Several visual and microscopic observations confirmed the presence of a significant number of SRB and SOB in all the biological vessels. Results indicated that it is possible to develop SGS and a microbial population of SRB and SOB which could attach to the nonreactive surface without any external seeding. Domestic wastewater could serve as a source of these organisms. Immobilized growth conditions and suspended growth conditions in BVs yield similar results in terms of organic matter utilization. The empirical formula for MRB biomass can be expressed as C11O12H36N5S.
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Dissertations / Theses on the topic "SRB"

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Blázquez, Ribas Enric. "Promoting autotrophic sulfate reduction and elemental sulfur recovery in bioelectrochemical systems." Doctoral thesis, Universitat Autònoma de Barcelona, 2019. http://hdl.handle.net/10803/667334.

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Les activitats industrials com són les industries papereres, farmacèutiques, minera, de processat d’aliments, etc. generen aigües residuals amb un alt contingut de sulfat. El sulfat com a tal no resulta altament perjudicial per a la salut, però si s’aboca en rius o sistemes de clavegueram, els microorganismes coneguts com bactèries reductores de sulfat (sulfate reducing bacteria, SRB) el poden transformar en sulfur d’hidrogen. El sulfur d’hidrogen és un compost que fa mala olor, és corrosiu i s’ha demostrat tòxic inclús a baixes concentracions. Per aquests motius el tractament d’efluents rics en sulfat és indispensable. A més a més, la recuperació de sofre elemental d’aquests efluents per poder ser reutilitzat com a fertilitzant o matèria primera a la indústria és una oportunitat de recuperació de recursos en el marc de l’economia circular. Els sistemes bioelectroquímics (bioelectrochemical systems, BES) són una tecnologia innovadora basada en l’habilitat d’alguns bacteris d’intercanviar electrons amb un elèctrode sòlid. Últimament, l’estudi dels BES s’ha focalitzat en el tractament d’aigües residuals i en la recuperació de productes gràcies a l’activitat dels microorganismes que colonitzen els elèctrodes. En aquesta tesi s’ha estudiat l’ús de BES per al tractament i recuperació de compostos de sofre, concretament, el tractament d’aquestes aigües residuals amb sulfat. El sistema permet la reducció de sulfat en un biocàtode mentre en l’ànode succeeix l’electròlisi d’aigua per generar el flux d’electrons necessari. Els microorganismes que colonitzen la superfície del càtode utilitzen l’hidrogen generat a partir dels electrons per transformar el sulfat en sulfur d’hidrogen. No obstant això, els resultats obtinguts han demostrat que gràcies a l’electròlisi de l’aigua que té lloc a l’ànode es produeix un flux d’oxigen cap al càtode que permet el creixement dels microorganismes capaços de produir sofre a partir del sulfur d’hidrogen, anomenats bacteris oxidants de sulfur (sulfide oxidising bacteria, SOB). Per tal de millorar l’eliminació de sulfat i la producció de sofre es va estudiar com el pH del compartiment del càtode i el potencial de càtode podien influir en el procés. Es va observar que el pH neutre (pH = 7) era més beneficiós ja que un pH àcid (pH = 5.5) podria inhibir l’activitat de les SRB i un pH bàsic (pH = 8.5) requeria de més energia per aconseguir resultats similars a causa de la limitació en la producció d’hidrogen a un pH elevat. En quant al potencial del càtode, es va poder observar que a menors potencials, major eliminació de sulfat, però a partir d’un potencial de -1.0 V vs. SHE, el sistema no podia augmentar la velocitat d’eliminació. A més a més, també s’ha estudiat el tractament d’aigua residual real procedent d’un sistema de dessulfuració de gasos de combustió. S’ha observat que amb l’aigua real l’eliminació de sulfat es reduïa, però en canvi la producció de sofre elemental augmentava. Finalment, com que el flux d’oxigen de l’ànode al càtode no es podia controlar amb els sistemes anteriors, s’han dissenyat dues noves configuracions per poder millorar la producció de sofre elemental. La primera ha consistit en l’addició d’una cel·la electroquímica per tal d’oxidar el sulfur d’hidrogen en l’ànode permetent el control del potencial i així poder-ne controlar la producció. La segona configuració ha consistit en l’addició d’una cel·la de combustible amb un càtode exposat a l’aire aprofitant la capacitat del sulfur d’hidrogen a ser oxidat en un ànode espontàniament i així produir energia en comptes de requerir-la en el procés d’oxidació.
Las actividades industriales tales como las industrias papeleras, farmacéuticas, minera, de procesado de alimentos, etc. generan aguas residuales con un alto contenido en sulfato. El sulfato como tal no resulta muy perjudicial para la salud, pero si se vierte en ríos o sistemas de alcantarillado, los microorganismos conocidos como bacterias reductoras de sulfato (sulfate reducing bacteria, SRB) lo pueden transformar en sulfuro de hidrógeno. El sulfuro de hidrógeno es un compuesto que huele mal, es corrosivo y se ha demostrado tóxico incluso a bajas concentraciones. Por estos motivos, el tratamiento de efluentes ricos en sulfato es indispensable. Además, la recuperación de azufre elemental de estos efluentes para poder ser reutilizado como fertilizante o materia prima en la industria es una oportunidad de recuperación de recursos en el marco de la economía circular. Los sistemas bioelectroquímicos (bioelectrochemical systems, BES) son una tecnología innovadora basada en la habilidad de algunas bacterias de intercambiar electrones con un electrodo sólido. Últimamente, el estudio de los BES se ha focalizado en el tratamiento de aguas residuales y en la recuperación de productos gracias a la actividad de los microorganismos que colonizan los electrodos. En esta tesis se ha estudiado el uso de BES para el tratamiento y recuperación de compuestos de azufre, concretamente, el tratamiento de estas aguas residuales con sulfato. El sistema permite la reducción de sulfato en un biocátodo mientras en el ánodo se produce la electrólisis del agua para generar el flujo de electrones necesario. Los microorganismos que colonizan la superficie del cátodo utilizan el hidrógeno generado a partir de los electrones para transformar el sulfato en sulfuro de hidrógeno. Sin embargo, los resultados obtenidos han demostrado que gracias a la electrólisis del agua que tiene lugar en el ánodo se produce un flujo de oxígeno hacia el cátodo que permite el crecimiento de microorganismos capaces de producir azufre a partir del sulfuro de hidrógeno, llamados bacterias oxidantes de sulfuro (sulfide oxidizing baceria, SOB). Para mejorar la eliminación de sulfato y la producción de azufre se estudió como el pH del compartimento del cátodo y el potencial de cátodo podían influir en el proceso. Se observó que el pH neutro (pH = 7) era más beneficioso ya que un pH ácido (pH = 5.5) podría inhibir la actividad de las SRB y un pH básico (pH = 8.5) requería más energía para conseguir resultados similares debido a la limitación en la producción de hidrógeno a un pH elevado. En cuanto al potencial del cátodo, se pudo observar que a menores potenciales, mayor eliminación de sulfato, pero a partir de un potencial de -1.0 V vs. SHE, el sistema no podía aumentar la velocidad de eliminación. Además, también se ha estudiado el tratamiento de agua residual real procedente de un sistema de desulfuración de gases de combustión. Se ha observado que con el agua real la eliminación de sulfato se reducía, pero en cambio la producción de azufre elemental aumentaba. Finalmente, dado que el flujo de oxígeno del ánodo al cátodo no se podía controlar con los sistemas anteriores, se han diseñado dos configuraciones nuevas para mejorar la producción de azufre elemental. La primera ha consistido en la adición de una celda electroquímica para oxidar el sulfuro de hidrógeno en el ánodo permitiendo el control del potencial y así poder controlar la producción. La segunda configuración ha consistido en la adición de una celda de combustible con un cátodo expuesto al aire aprovechando la capacidad del sulfuro de hidrógeno a ser oxidado en un ánodo espontáneamente y así producir energía en vez de requerirla en el proceso de oxidación.
Industrial activities such as paper, pharmaceutical, mining, food processing, etc. generate wastewater with high sulfate content. Sulfate as such is not very harmful to health, but if it is poured into rivers or sewage systems, the microorganisms known as sulfate reducing bacteria (SRB) can transform it into hydrogen sulfide. Hydrogen sulfide is a compound with bad odour, is corrosive and has been shown toxic at low concentrations. For these reasons, the treatment of sulfate-rich effluents is essential. In addition, the recovery of elemental sulfur from these effluents in order to be reused as fertilizer or raw material in the industry is an opportunity to recover resources in the framework of the circular economy. Bioelectrochemical systems (BES) are a novel technology based on the ability of some bacteria to exchange electrons with a solid electrode. Lastly, the study of the BES has focused on the treatment of wastewater and the recovery of products thanks to the activity of the microorganisms that colonize the electrodes. In this thesis, the use of BES for the treatment and recovery of sulfur compounds was studied, specifically, the treatment of these wastewaters with sulfate in a biocathode. The system allows the reduction of sulfate at a biocatode while at the anode electrolysis of water occurs to generate the necessary electron flow. The microorganisms that colonize the surface of the cathode use the hydrogen produced from the electrons to transform the sulfate into hydrogen sulfide. However, the results obtained showed that thanks to the water electrolysis that takes place at the anode an oxygen flow to the cathode is generated, allowing the growth of microorganisms capable of producing sulfur from hydrogen sulfide, called sulfide oxidizing bacteria (SOB). The influence of pH of the cathode compartment and the cathode potential was studied in order to improve sulfate removal and sulfur production. It was observed that neutral pH (pH = 7) was more beneficial since an acidic pH (pH = 5.5) could inhibit the activity of the SRB and a basic pH (pH = 8.5) required more energy to achieve similar results due to the limitation in the production of hydrogen at a high pH. Regarding the potential of the cathode, it could be observed that lower potentials led to greater sulfate removal rate, but from a potential of -1.0 V vs. SHE, the system could not increase the removal rate. In addition, the impact of real wastewater coming from a flue gas desulphurization system in the system was also studied. It was observed that with real water the sulfate removal decreased, however, the production of elemental sulfur increased. Finally, since the oxygen flow from the anode to the cathode could not be controlled with the previous systems, two new configurations were designed to improve the production of elemental sulfur. The first one consisted in the addition of an electrochemical cell to oxidize the hydrogen sulfide at the anode, allowing the control of the potential and thus controlling the production. The second configuration consisted in the addition of a fuel cell with a cathode exposed to the air taking advantage of the capacity of the hydrogen sulfide to be oxidized at an anode spontaneously and thus produce energy instead of requiring it in the oxidation process.
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CARVALHO, Péricles Rafael Pavão. "Medidas SRB para Atratores Hiperbólicos." Universidade Federal do Maranhão, 2017. http://tedebc.ufma.br:8080/jspui/handle/tede/1735.

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This paper begins with the definition of SRB measures, and the introduction of several concepts in ergodic theory necessary for the development of the presented results. We prove the existence and uniqueness of SRB measures for uniformly expanding transformations in compact connected manifolds whose Jacobian is H¨older continuous. Then, we present the definition of hyperbolic sets, hyperbolic attractors and their respective fundamental properties. As a main result, we prove the existence of SRB measures for hyperbolic attractors contained in compact manifolds, and its uniqueness if the hyperbolic attractor is transitive. First, it is shown the existence of invariant measures absolutely continuous along the unstable foliation. Then, we note that the restriction of this measure over certain subsets have the SRB property. Using the transitivity of the hyperbolic attractor, it is shown that there exists a unique subset such that this restriction is an SRB measure. We conclude that the system supports a unique SRB measure.
Este trabalho inicia-se com a definição de medida SRB, e a apresentação de diversos conceitos da teoria ergódica importantes para o desenvolvimento dos resultados apresentados. É demonstrada a existência e unicidade de medidas SRB para transformações expansoras em variedades compactas e conexas cujo jacobiano é Holder. Em seguida, apresenta-se a definição de conjuntos hiperbólicos, atratores hiperbólicos e suas respectivas propriedades fundamentais. Como resultado principal, é demonstrada a existência de medidas SRB para atratores hiperbólicos, bem como sua unicidade para o caso de atratores hiperbólicos transitivos, ambos dentro de variedades compactas. Primeiramente, é mostrado que existem medidas invariantes absolutamente contínuas ao longo da folheação instável. Em seguida, verifica-se que a restrição desta medida sob determinados conjuntos possuem a propriedade SRB. Utilizando a transitividade do atrator hiperbólico, mostra-se que existe um único conjunto tal que esta restrição seja uma medida SRB. Conclui-se que o sistema admite uma única medida SRB.
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Bronzi, Marcus Augusto. "Tangências homoclínicas, entropia e medidas de SRB." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/55/55135/tde-13052010-141003/.

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Estudamos o efeito de uma tangência homoclínica na variação da entropia topológica. Provamos que um difeomorfismo com uma tangência homoclínica associada a uma peça básica com máxima entropia é um ponto de variação da entropia na topologia \'C POT. INFINITO\'. Além disso, discutimos o problema variacional na topologia \'C POT.1\' e apresentamos um exemplo de descontinuidade da entropia em dimensão três. Um resultado devido a Newhouse afirma que um difeomorfismo genérico sobre uma superfície com um conjunto homoclínico que contém uma tangência correspondente a um ponto periódico dissipativo, não pode ter medidas de SRB suportadas no conjunto homoclínico. Generalizamos este resultado para dimensões maiores, no caso em que a tangência homoclínica está associada com uma sela seccionalmente dissipativa
We study the effect of a homoclinic tangency in the variation of the topological entropy. We prove that a diffeomorphism with a homoclinic tangency associated to a basic hyperbolic set with maximal entropy is a point of entropy variation in the \'C POT THE INFINITE\' topology. We also discuss variational problem in \'C POT.1\' topology and we show an example of discontinuity of the entropy in dimension three. A result due to Newhouse states that a generic surface diffeomorphism with a homoclinic set containing a tangency associated to a dissipative periodic point, can not have SRB (Sinai-Ruelle-Bowen) measures supported on the homoclinic set. We generalize this result to higher dimensions, in the case where the homoclinic tangency is associated to a sectionally dissipative saddle
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Dall’Agnol, Leonardo Teixeira. "Deeper insights into SRB-driven biocorrosion mechanisms." Doctoral thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/10424.

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Dissertação para obtenção do Grau de Doutor em Química Sustentável
Microbially Influenced Corrosion (MIC) is recognized as an important category of corrosion and represents one of the most challenging to study and prevent. In biocorrosion, Sulphate Reducing Bacteria (SRB) are the best suited organisms because its ability to produce biogenic hydrogen sulphide. Still little is known about the mechanisms related to corrosion involving those microorganisms. In that regard, this thesis describes the analysis of the interactions, and its consequences, between Desulfovibrio desulfuricans ATCC 27774 and metal surfaces using electrochemistry, of surface analysis and biochemical techniques. The Open Circuit Potential (OCP) showed that the equilibrium of sulphide in the solution/gas phases is a key factor on determining the evolution of the corrosion process. Also it have been demonstrated that, although the trend in the behaviours remains, long measurements periods are necessary to avoid overestimations when dealing with biocorrosion. Our results also indicate that the nitrate injection strategy in oil fields has to be considered carefully as it can increase the uniform corrosion and the SRB population growth rate. High-throughput analysis techniques were used to characterize the surface of metal plates after incubation with SRB with different respiratory substrate. The precipitation of inorganic salts as calcium and phosphates, has been detected in the samples incubated in sulphate and could be related to iron dissolution areas in the metal surface. Also micropitting underneath the bacteria cells could be observed when the bacteria were incubated. In nitrate medium, a high concentration of precipitated chloride ions was observed on the surface which could be responsible for the enhanced corrosions rates observed. The Extracellular Polymeric Substance chemical composition corroborated the previous results regarding the iron uptake and the influence of phosphates and other functional groups in the corrosion process. The protein profile characterization has demonstrated heterogeneity of the expressed proteins depending on the respiratory substrate.
Project BIOCOR ITN, "People" Programme, under grant agreement n° 238579
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Balagafsheh, Pouya Mehdipour. "On the number of SRB measures for Surface Endomorphisms." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/55/55135/tde-30092014-101422/.

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Let f be a C2 local diffeomorphism, of a closed surface M without zero Lyapunov exponents. We have proved that the number of ergodic hyperbolic measures of f with SRB property is less than equal to the number of homoclinic equivalence classes. We use an adaptation of Katok closing lemma for endomorphisms and prove ergodic criterion, introduced in [HHTU], for endomorphisms. We also prove some folklore results on uniqueness of SRB measures, in the presence of topological transitivity
Seja f um endomorfismo C2 non-singular (difeomorfismo local), de uma superfície fechada M e µ uma medida probabilidade Borel f-invariante e ergódica com expoentes de Lyapunov Não nulo. Nós provamos que o número de medidas hiperbólicas com propriedade SRB é para f so menor ou igual ao número de classes equivalentes homoclínicos. Usamos uma adaptaão do closing lema de Katok por endomorfismos e provamos critrio ergódico, introduzido em [HHTU], para endomorfismos. Também provamos alguns resultados folclóricos em unicidade de medidas SRB, na presena de transitividade topológica vii
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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 otherwise be killed in the water treatment process survive and are capable of infecting water customers. Most likely due to experimental limitations discussed herein, the concentration of organic carbon in solution was not found to affect the number of Acanthamoeba polyphaga surviving within reactors designed to model residential water tanks. A copper ion concentration of 1.3 mg/L was determined to be an effective disinfectant against A. polyphaga trophozoites, while free chlorine at 10 mg/L and monochloramine at 50 mg/L were deemed effective against trophozoites. Sulfate-reducing bacteria (SRB) are suspected to be causative agents in copper pitting corrosion. SRB have been found in tubercles covering pits in many homes experiencing pinhole leaks, but the mechanisms of the survival of these organisms in potable water systems are poorly understood. Nutrient studies conducted show that the absence of nitrogen in solution may encourage copper corrosion by SRB. In addition, a medium specifically designed to encourage SRB growth resulted in a large increase in copper corrosion as compared to the control water.
Master of Science
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Lee, Jae-Yong. "Expression, purification and interaction analysis of recombinant SRB proteins." Thesis, Imperial College London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.407809.

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Clark, Melinda Erin. "Physiological Analysis of Desulfovibrio vulgaris Hildenborough Under Conditions Relevant to the Subsurface Environment: Carbon and Energy Limitation and Biofilm Formation." Oxford, Ohio : Miami University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=miami1218999819.

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Cruz, Anderson Reis da. "Existência, unicidade e estabilidade de medidas SRB para endomorfismos não - uniformemente hiperbólicos." Instituto de Matemática. Departamento de Matemática, 2016. http://repositorio.ufba.br/ri/handle/ri/22837.

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Neste trabalho construímos medidas SRB (Sinai-Ruelle-Bowen) para difeomorfismos locais parcialmente hiperbólicos. A hiperbolicidade parcial será caracterizada pela existência de um campo de cones positivamente invariante satisfazendo uma condição de expansão não uniforme num conjunto de medida de Lebesgue positiva. Mostramos ainda que existem no máximo um número finito de medidas SRB e que, caso o difeomorfismo local seja transitivo, existe uma única medida SRB. Provamos a estabilidade estatística destas medidas, assumindo que vale a expansão não uniforme no campo de cones robustamente e com constantes uniformes. Finalmente, apresentamos exemplos de perturbações de endomorfismos de Anosov em que podemos aplicar nossos resultados
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Mantovani, Gabriel Elias. "Teoria não comutativa de integração e dinâmica hiperbólica." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/55/55135/tde-02102013-104602/.

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Uma das caracterizações de medidas SRB é a de que a sua desintegração em relação as partições mensuráveis subordinadas as variedades instáveis são absolutamente continuas com respeito a medida Lebesgue nestas mesmas variedades. Este trabalho segue os passos de Segert [16] ao analisar a aplicabilidade da teoria de integração não comutativa de Alain Connes ao estudo de medidas SRB de sistemas dinâmicos hiperbólicos do tipo (M, f) com M uma variedade compacta e f um difeomorfismo \'C POT. 2\'. Nesta dissertação é realizada a demonstração do teorema da desintegração de Rokhlin utilizando o conceito de esperança condicional. É fornecida uma introdução a teoria de integração não comutativa de Alain Connes. E apresenta-se uma injeção entre medidas SRB de sistemas dinâmicos hiperbólicos e as medidas transversas definidas sobre este sistema
A characterization of SRB measures is that its disintegration in relation to measurable partitions subordinate to unstable manifolds is absolutely continous with respect to the Lesbesgue measures in the same manifolds. This work follows the footsteps of Segert [16] in the study of the applicability of the non commutative integration theory of Alain Connes to the analysis of SRB measures for hyperbolic dynamical systems of the type (M, f) with M a compact manifold and f a \'C POT. 2\' diffeomorphism. In this work the proof of Rokhlins disintegration theorem is presented using the concept of conditional expectation. An introduction to the theory of non commutative integration of Alain Connes is provided. Its shown the existence of a injection between SRB measures in hyperbolic dynamical systems and transverse measures defined on this system
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Books on the topic "SRB"

1

Legenda o srb. Beograd: Beogradska knjiga, 2003.

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Čubrić, Ljiljana. Katarina srb-devojka. Beograd: Narodni muzej u Beogradu, 2011.

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Powell, Tim. The SRB employment project. Warwick: National Probation Service for England and Wales, 2000.

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Ward, R. SRB funding outside urban areas. Oxford: Oxford Brookes University, 1997.

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Partnership, Haringey Heartlands. SRB delivery plan 1997/98. London: Haringey Council, 1997.

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Council, Lambeth London Borough. lambeth Walk SRB delivery plan 1997/8. London: London Borough of Lambeth, 1997.

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Partnership, Cross River. Cross River Partnership 95: SRB bid document. [London]: Cross River Partnership, 1995.

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Fearnley, Rebecca. The South Leytonstone SRB area: Findings from a business survey. London: University of East London, 1997.

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Sandham, James. The Warwickshire SRB housing support project: A follow up report. Warwick: National Probation Service for England and Wales, 2000.

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Cruse, Thomas A. Final report on the SRB frustrum "Smiley" cracking phenomenon study. [Washington, DC: National Aeronautics and Space Administration, 1993.

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Book chapters on the topic "SRB"

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Gallavotti, Giovanni, Federico Bonetto, and Guido Gentile. "General Properties of Gibbs and SRB Distributions." In Aspects of Ergodic, Qualitative and Statistical Theory of Motion, 189–226. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-05853-4_6.

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Rahm, Laura. "General Conclusion: Limited Evidence that Policies Normalize SRB." In Gender-Biased Sex Selection in South Korea, India and Vietnam, 309–18. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20234-7_9.

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QUIAN, Min, Jian-Sheng XIE, and Shu ZHU. "SRB Measures and Pesin’s Entropy Formula for Endomorphisms." In Lecture Notes in Mathematics, 97–150. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01954-8_7.

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Pesin, Yakov. "Sinai’s Work on Markov Partitions and SRB Measures." In The Abel Prize, 257–85. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-99028-6_11.

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Nordwick, Suzzann, Marek Zaluski, Diana Bless, and John Trudnowski. "Development of SRB Treatment Systems for Acid Mine Drainage." In Electrometallurgy and Environmental Hydrometallurgy, 1837–46. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118804407.ch58.

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Hoffmann, Martin, Andrea Kassahun, and Ulf Jenk. "Utilization of autochthonous SRB in uranium mine site remediation." In Uranium, Mining and Hydrogeology, 111–20. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-87746-2_17.

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Field, Michael. "Persistent Ergodicity and Stably Ergodic SRB Attractors in Equivariant Dynamics." In Bifurcation, Symmetry and Patterns, 75–86. Basel: Birkhäuser Basel, 2003. http://dx.doi.org/10.1007/978-3-0348-7982-8_4.

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Alves, José F., Christian Bonatti, and Marcelo Viana. "SRB measures for partially hyperbolic systems whose central direction is mostly expanding." In The Theory of Chaotic Attractors, 443–90. New York, NY: Springer New York, 2000. http://dx.doi.org/10.1007/978-0-387-21830-4_24.

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Ying, Ying. "Design and Industrial Practice of Computer Monitoring Control System for SRB Wastewater Treatment." In Proceedings of the 2012 International Conference on Communication, Electronics and Automation Engineering, 227–31. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-31698-2_33.

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Dempsey, Brian R., Anne C. Rintala-Dempsey, Gary S. Shaw, Yuan Xiao Zhu, A. Keith Stewart, Jaime O. Claudio, Constance E. Runyan, et al. "SRC." In Encyclopedia of Signaling Molecules, 1779. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0461-4_101269.

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Conference papers on the topic "SRB"

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Emmanuel, J. I., and T. T. Shaapere. "Sulphate Reducing Bacteria SRB Control and Risk Based SRB Severity Ranking." In Abu Dhabi International Petroleum Exhibition & Conference. Society of Petroleum Engineers, 2018. http://dx.doi.org/10.2118/192938-ms.

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Saito, Takao, Tetsuya Nakamura, Munetsugu Kaneko, Igor Men'shov, and Yoshiaki Nakamura. "Numerical Investigation of SRB Ignition Overpressure." In 34th AIAA Fluid Dynamics Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2004. http://dx.doi.org/10.2514/6.2004-2342.

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Wu, Yanyan, Yiqing Cao, Liangang Chi, and Dacheng Yang. "Improved sRB-HARQ for OFDM System." In 2007 IEEE 65th Vehicular Technology Conference. IEEE, 2007. http://dx.doi.org/10.1109/vetecs.2007.637.

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Fisher, Paul. "Smoothing SRB Thrust Delivery with Liquid Injection." In 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2009. http://dx.doi.org/10.2514/6.2009-5325.

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Evans, Paul. "Reservoir Souring Modelling, Prediction and Mitigation." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57085.

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The prediction of reservoir souring due to the activity of sulphate-reducing bacteria (SRB) during water injection is an important consideration in material selection for wells and production facilities. A number of reservoir souring models have been developed in the past 16 years or so, with the objective of predicting the timing and magnitude of H2S production. The results of the reservoir souring models are dependent on a number of reservoir geometry, geochemical, microbiological and reservoir geology parameters. For example, the SRB activity is dependent on the availability of essential nutrients such as sulphate and dissolved hydrocarbons in the injection and formation waters. Environmental parameters such as temperature and pressure control in which parts of the reservoir SRB can be active. Water flow path and extent of water breakthrough has a major impact on H2S production. Very low reservoir permeabilities will restrict the movement of SRB into the rock matrix and certain minerals have the ability to scavenge H2S within the reservoir. All of these parameters must be accounted for in a reservoir souring simulation, and this requires the cooperation of reservoir engineers, geologists, production chemists and facilities engineers. Several techniques have been employed in the oil industry to try to control the generation of H2S within the reservoir. These include the application of biocides to control SRB activity, the injection of nitrate to stimulate other bacterial populations to out compete SRB for available food sources and the use of sulphate removal technologies to minimize sulphide production.
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Men, Hong, Yan Peng, Jing Zhang, Shanrang Yang, and Zhiming Xu. "Study on Biocorrosion Induced by Sulfate-Reducing Bacteria on Heat Exchanger Material in Cooling Water." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22747.

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Corrosion associated with microorganisms has been recognized for over 50 years and yet the study of microbiologically influenced corrosion (MIC) is relatively new. MIC can occur in diverse environments. Industrial cooling water from rivers, lakes and sea water contain lots of microorganisms which are able to grow and multiply under certain conditions when pH, water temperature and sunlight etc are suitable. MIC is one of key cause of heat exchanger faults. MIC of heat exchanger materials in cooling waters has caused expensive unplanned outages, the need for local repairs and, in some cases, completes system replacement. Sulfate-reducing bacteria (SRB) are the main harmful bacteria in circulating cooling water. Under anaerobic conditions, SRB reproduce a lot to produce mucus, which speed up the formation of corrosion, erode the metal equipment, plug the pipeline, affect the efficiency of heat transfer, and bring a lot of inconvenience to the production. The corrosion behaviors of 304 stainless steel induced by SRB were studied by measuring the polarization curves, electrochemical impedance Spectrum, weight loss measurements of fore-and-aft biocorrosion, and electrochemical noise method. The electrochemical noise signal of 304 stainless steel corrosion were de-noised by using a wavelet threshold de-noising method, which made the quadratic biorthogonal spline wavelet as the mother wavelet and adopted an soft threshold processing function. The result showed that the slope of cathodic polarization curves measured included with SRB is lower than the one obtained without SRB, while the slope of anodic polarization curves is higher than it. It is concluded that the process of anode polarization was repressed at the presence of SRB. With the growth of the culture time, the value of electrochemical impedance without bacteria reduced at first, then rose, while with bacteria fell at all times. It indicated that SRB accelerated the corrosion of stainless steel. With the dipping time, a biofilm, under which corrosion products congregate to form local battery corrosion, was formed on the surface of stainless steel, so that the serious pitting corrosion is induced. The results from electrochemical noise method showed that the quadratic biorthogonal spline wavelet much smoother and it can remove the noise from the electrochemical noise effectively, and can effectively identify the location of the sudden changes in the signal and accurately reflect the useful information of the signal. The more useful information and data about biocorrosion induced by SRB are also gotten.
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WOLF, D. "A dynamic analysis of the SRB parachute system." In 11th Aerodynamic Decelerator Systems Technology Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-838.

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Zhang, Shunde, Paul Coddington, and Andrew Wendelborn. "Davis: A generic interface for iRODS and SRB." In 2009 10th IEEE/ACM International Conference on Grid Computing (GRID). IEEE, 2009. http://dx.doi.org/10.1109/grid.2009.5353082.

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Mitchell, K. N., and S. Mahadevan. "SRB Splashdown Analysis and Structural Damage Risk Assessment." In Ninth Biennial Conference on Engineering, Construction, and Operations in Challenging Environments. Reston, VA: American Society of Civil Engineers, 2004. http://dx.doi.org/10.1061/40722(153)64.

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ROGERS, JR., JAMES, KATHERINE YOUNG, and JEAN-FRANCOIS BARTHELEMY. "Distributed computer system enhances productivity for SRB joint optimization." In 28th Structures, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1987. http://dx.doi.org/10.2514/6.1987-835.

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Reports on the topic "SRB"

1

Cull, T. A. General-purpose heat source development: Extended series test program SRB fragment/fuselage tests. Office of Scientific and Technical Information (OSTI), June 1989. http://dx.doi.org/10.2172/6074413.

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Tsui, Flora, Paul Hogan, Jeff Chandler, Javier Espinosa, Patrick Mackin, and Peter Greenston. Army SRB Program: Estimates of Effects on Retention (Revised and Length of Reenlistment. Fort Belvoir, VA: Defense Technical Information Center, November 2006. http://dx.doi.org/10.21236/ada460060.

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Deken, J. Archiving SLD Records in SRB: The Persistent Archives Test-Bed (PAT) Project at SLAC in 2004. Office of Scientific and Technical Information (OSTI), January 2005. http://dx.doi.org/10.2172/839915.

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Tajima, Tsuyoshi. MgB2 for SRF Cavities. Office of Scientific and Technical Information (OSTI), March 2021. http://dx.doi.org/10.2172/1765858.

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Ho, P. C., P. A. Goddard, M. B. Maple, and John Singleton. Unusual Phase Diagram of CeOs4Sb12. Office of Scientific and Technical Information (OSTI), March 2017. http://dx.doi.org/10.2172/1345909.

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Niu, Xuejun. Magnetocaloric effect of Gd4(BixSb1-x)3 alloy series. Office of Scientific and Technical Information (OSTI), January 1999. http://dx.doi.org/10.2172/754836.

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Pan, Wei, Y. X. Jiang, Jon Ihlefeld, Ping Lu, and Stephen R. Lee. Giant Magneto-Resistance in Epitaxial (La0.7Sr0.3MnO3)0.5: (ZnO)0.5 Nanocomposites. Office of Scientific and Technical Information (OSTI), December 2015. http://dx.doi.org/10.2172/1233569.

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Polonka, Jack. The incongruent melting and melt textured solidification process of Bi2Sr2CaCu2O8. Office of Scientific and Technical Information (OSTI), January 1993. http://dx.doi.org/10.2172/10185082.

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Thorn, R. J. Electrical transport in La{sub 2-x}Sr{sub x}CuO{sub 4-y}. Office of Scientific and Technical Information (OSTI), December 1992. http://dx.doi.org/10.2172/10184323.

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Chen, E., D. C. Paine, P. Uppal, J. S. Ahearn, K. Nichols, and G. W. Charache. Microstructural evaluation of Sb-adjusted Al{sub 0.5}Ga{sub 0.5}As{sub 1{minus}y}Sb{sub y} buffer layer systems for IR applications. Office of Scientific and Technical Information (OSTI), June 1998. http://dx.doi.org/10.2172/307978.

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