Academic literature on the topic 'Nitrifying'

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Journal articles on the topic "Nitrifying"

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Ayiti, Oluwatobi Esther, Ayansina Segun Ayangbenro, and Olubukola Oluranti Babalola. "16S Amplicon Sequencing of Nitrifying Bacteria and Archaea Inhabiting Maize Rhizosphere and the Influencing Environmental Factors." Agriculture 12, no. 9 (August 28, 2022): 1328. http://dx.doi.org/10.3390/agriculture12091328.

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Nitrifying bacteria and archaea are ubiquitous and can transform ammonia locked up in soil or manure into nitrate, a more soluble form of nitrogen. However, nitrifying bacteria and archaea inhabiting maize rhizosphere have not been fully explored. This study evaluates the diversity and abundance of nitrifying bacteria and archaea across different growth stages of maize using 16S amplicon sequencing. Moreover, the influence of environmental factors (soil physical and chemical properties) on the nitrifying communities was evaluated. Rhizosphere soil DNA was extracted using Nucleospin Soil DNA ex
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Tsuneda, S., Y. Ejiri, T. Nagano, and A. Hirata. "Formation mechanism of nitrifying granules observed in an aerobic upflow fluidized bed (AUFB) reactor." Water Science and Technology 49, no. 11-12 (June 1, 2004): 27–34. http://dx.doi.org/10.2166/wst.2004.0796.

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The influences of trace metals in the wastewater and shear stress by aeration were particularly examined to clarify the formation mechanism of nitrifying granules in an aerobic upflow fluidized bed (AUFB) reactor. It was found that Fe added as a trace element to the inorganic wastewater accumulated at the central part of the nitrifying granules. Another result obtained was that suitable shear stress by moderate aeration (0.07-0.20 L/min/L-bed) promoted granulation. Furthermore, it was successfully demonstrated that pre-aggregation of seed sludge using hematite promoted core formation, leading
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Lai, Zi Ni, Ying De Cui, Peng Gao, and Xun Jun Chen. "Modified PLA Carrier Material and its Performance in Immobilization of Nitrifying Bacteria." Materials Science Forum 610-613 (January 2009): 198–201. http://dx.doi.org/10.4028/www.scientific.net/msf.610-613.198.

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To prepare the renewable carrier materials for immobilization of nitrifying bacteria, polylactic acid (PLA) dichloromethane solution was added to chitosan aqueous solution, mixed by agitation at a speed of 150 rpm / min. The resultant PLA microspheres were fund to have diameter of 100 ~ 300 μm, thus underwent ammonolysis by a 6 % hexamethylenediamine / n-propanol solution for 8 min, hydroformylation by a 1% glutaraldehyde solution for 3 h, and grafted with 1% chitosan for 24 h, to improve the surface hydrophilic property. The static adsorption was applied for adhesion of nitrifying bacteria to
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Okabe, Satoshi, Tomonori Kindaichi, and Tsukasa Ito. "Fate of 14C-Labeled Microbial Products Derived from Nitrifying Bacteria in Autotrophic Nitrifying Biofilms." Applied and Environmental Microbiology 71, no. 7 (July 2005): 3987–94. http://dx.doi.org/10.1128/aem.71.7.3987-3994.2005.

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ABSTRACT The cross-feeding of microbial products derived from 14C-labeled nitrifying bacteria to heterotrophic bacteria coexisting in an autotrophic nitrifying biofilm was quantitatively analyzed by using microautoradiography combined with fluorescence in situ hybridization (MAR-FISH). After only nitrifying bacteria were labeled with [14C]bicarbonate, biofilm samples were incubated with and without NH4 + as a sole energy source for 10 days. The transfer of 14C originally incorporated into nitrifying bacterial cells to heterotrophic bacteria was monitored with time by using MAR-FISH. The MAR-FI
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Okabe, S., H. Naitoh, H. Satoh, and Y. Watanabe. "Structure and function of nitrifying biofilms as determined by molecular techniques and the use of microelectrodes." Water Science and Technology 46, no. 1-2 (July 1, 2002): 233–41. http://dx.doi.org/10.2166/wst.2002.0482.

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The phylogenetic diversity of a nitrifying bacterial community of two types of nitrifying biofilms, a domestic wastewater biofilm and an autotrophic nitrifying biofilm grown on rotating disk reactors (RDR), was characterized by 16S ribosomal DNA (rDNA)-cloning analysis. Thereafter, successional development of nitrifying the bacterial community within both biofilms was visualized in situ by fluorescent in situ hybridization (FISH) with a set of fluorescently labeled 16S rRNA-targeted DNA probes. In situ hybridization revealed that Nitrosomonas ureae was the numerically dominant species of the a
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Sarker, D. C., and A. Sathasivan. "Nitrification control by adjusting pH in severely nitrified bulkwaters." Water Supply 12, no. 5 (August 1, 2012): 683–90. http://dx.doi.org/10.2166/ws.2012.042.

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Nitrification control is complicated and expensive, especially when nitrification has reached a severely nitrifying stage. Under this condition, utilities usually apply re-chloramination with limited success. Adjusting pH may benefit utilities. However, it is not clear whether pH should be moved up or down, and pH adjustment will also alter the chloramine decay profile (biocide) and ammonia (food) concentration. It is important to understand how this behaviour will ultimately impact nitrifying bacterial activity. We collected samples from severely nitrifying bulkwaters and adjusted the pH with
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Morgan, Guillian, and Rania Hamza. "Cultivation of Nitrifying and Nitrifying-Denitrifying Aerobic Granular Sludge for Sidestream Treatment of Anaerobically Digested Sludge Centrate." Processes 10, no. 9 (August 25, 2022): 1687. http://dx.doi.org/10.3390/pr10091687.

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In this study, three 1.2-L aerobic granular sludge sequencing batch reactors (AGS-SBRs) were used to cultivate nitrifying and nitrifying-denitrifying granules (w/supplemental carbon) and investigate sidestream treatment of synthetic-centrate and real-centrate samples from Ashbridges Bay Treatment Plant (ABTP) in Toronto, Ontario, Canada. Results showed that although the cultivation of distinct granules was not observed in the nitrifying reactors, sludge volume index (SVI30) values achieved while treating real and synthetic centrate were 72 ± 12 mL/g and 59 ± 11 mL/g (after day 14), respectivel
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Blew, R. D., and D. Parkinson. "Nitrification and denitrification in a white spruce forest in southwest Alberta, Canada." Canadian Journal of Forest Research 23, no. 8 (August 1, 1993): 1715–19. http://dx.doi.org/10.1139/x93-214.

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Nitrification and denitrification were measured in a 120-year-old Piceaglauca (Moench) Voss forest in southwestern Alberta. Nitrifying activity could not be detected using short-term incubations of F–H and upper mineral soil horizons. Long-term incubations for nitrifying potential indicated that nitrifying organisms were present. The results suggest that the population of nitrifying organisms must have been small, their activity was limited, or the microhabitat necessary for their activity was not adequately simulated by the soil slurries in the short-term incubations. Low rates of denitrifica
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Fdz-Polanco, F., S. Villaverde, and P. A. García. "Temperature effect on nitrifying bacteria activity in biofilters: activation and free ammonia inhibition." Water Science and Technology 30, no. 11 (December 1, 1994): 121–30. http://dx.doi.org/10.2166/wst.1994.0552.

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Nitrifying bacteria activity and concentrations depend on specific free ammonia concentration (ratio NH3/biomass), that is a function of temperature, pH, ammonium concentration and nitrifying biomass concentration. So, temperature is a key parameter in the nitrification process producing two opposite effects: bacteria activation and free ammonia inhibition. These phenomena are studied in an up-flow biological aerated filter (UBAF) settled by a nitrifying biofilm (measured as Volatile Attached Solids, VAS). The plug flow allows to disclosure of both effects, activation and inhibition. For Nitro
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Hasebe, Yoshiaki, Hiroaki Meguro, Yuuki Kanai, Masahiro Eguchi, Toshifumi Osaka, and Satoshi Tsuneda. "High-rate nitrification of electronic industry wastewater by using nitrifying granules." Water Science and Technology 76, no. 11 (September 7, 2017): 3171–80. http://dx.doi.org/10.2166/wst.2017.431.

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Abstract Nitrifying granules have a high sedimentation property and an ability to maintain a large amount of nitrifying bacteria in a reaction tank. Our group has examined the formation process of nitrifying granules and achieved high-rate nitrification for an inorganic synthetic wastewater using these granules. In this research, a pilot-scale test plant with an 850-liter reaction tank was assembled in a semiconductor manufacturing factory in order to conduct a continuous water conduction test using real electronics industry wastewater. The aim was to observe the formation of nitrifying granul
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Dissertations / Theses on the topic "Nitrifying"

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Encarnacion, Gem Deangkinay. "Microbial ecology of nitrifying simulated premises plumbing." Diss., Montana State University, 2012. http://etd.lib.montana.edu/etd/2012/encarnacion/EncarnacionG0512.pdf.

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Because of the Stage 2 Disinfectants and Disinfection Rule limiting then concentration of disinfection by products in drinking water, the use of chloramine as an alternative to chlorine has been increasing. However, the ammonia introduced by chloramination can lead to nitrification which results in the production of nitrite and nitrate, leading to regulatory violations. Nitrification in reactors with copper and polyvinyl chloride (PVC) surfaces was established by indigenous organisms from Bozeman tap water and has been stably maintained for more than 6 years. Statistical analyses of polymerase
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McKinlay, Sarah M. "The interactions between ammonifying and nitrifying bacteria." Thesis, University of Aberdeen, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338396.

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The effects of adhesion to surfaces on the specific growth rates of <I>Nitrosomonas europaea </I>and <I>Nitrobacter </I>sp. were determined in batch culture systems both in monoculture and co-culture. It was found that the presence of a glass slide in co-cultures of these bacteria significantly reduced the specific growth rates of both species of bacteria. In monoculture, the specific growth rate of <I>N. europaea </I>was significantly lower in a mature biofilm system. The specific rates of production of ammonia by these four species of <I>Pseudomonas </I>were investigated in minimal medium. A
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Schopf, Alexander Gerald. "Advancement of Nitrifying Wastewater Treatment Design and Operation." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/41961.

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There is an urgent need to develop ammonia removal treatment systems for municipal and industrial wastewater treatment due to the increasingly stringent ammonia effluent discharge regulations implemented by Canada, the United States, and the European Union. The objective of this dissertation is to develop new understanding and advance the current design and operation of total ammonia nitrogen (TAN) removal via the moving bed biofilm reactor technology (MBBR) for municipal and industrial wastewaters. The first specific objective is to develop a passive, low operationally intensive, efficient an
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Cheatham, Amy Kathleen. "Responses of Nitrifying Bacteria to Aquaculture Chemotherapeutic Agents." Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/26879.

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As in any animal production industry, disease is inevitable; therefore, it is imperative that aquaculturists are able to effectively manage the disease and maintain their high production levels in an effort to bridge the gap between supply and demand in the seafood industry that has been caused in part by global over-fishing. This management responsibility lies not only in understanding the impact of the treatment on the cultured species, but also in understanding the impact of the treatment to the aquaculture system as an ecosystem. Currently, there is a narrow variety of chemicals approved b
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Forrest, Daina. "Tertiary Nitrifying Moving Bed-Biofilm Reactor: A Study of Carrier and Loading Effects on Nitrifying Kinetics, Biologically Produced Solids and Microbial Community." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31425.

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There is an increasing need for tertiary level wastewater treatment in Canada, driven in some cases by both provincial and federal regulation (Canada Gazette, 2012). Tertiary nitrification is the biologically mediated oxidation of nitrogen in the form of ammonia to nitrate following secondary treatment of carbonaceous material (Barnes & Bliss, 1983). The application of tertiary nitrification can prove challenging in the Canadian climate because of the temperature sensitive nature of nitrifiers (Hwang & Oleszkiewicz, 2007). Hence the greater than 1000 lagoon treatment plants currently in operat
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Song, Weining. "Some aspects of the utilization of inorganic nitrogen compounds and carbon compounds by "Nitrobacter hamburgensis" /." Title page, contents and summary only, 1987. http://web4.library.adelaide.edu.au/theses/09A/09as724.pdf.

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Ren, Baisha. "Understanding Extracellular Polymeric Substances in Nitrifying Moving Bed Biofilm Reactor." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32879.

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Water and wastewater treatment solutions incorporating biofilm systems are becoming increasingly popular due to more stringent regulations pertaining to drinking water and wastewater effluent discharge in Canada and in other parts of the world. As a major component of biofilm, extracellular polymeric substances (EPS) have been considered as an important factor affecting the physical and chemical properties of biofilm. Further, the selected method of EPS extraction and the methods of detecting the composition of the EPS have shown to affect the results of EPS measurements. In this research, pr
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Delatolla, Robert. "Nitrifying biofilms at cold temperatures: kinetics and in-situ characterization." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=32550.

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The biological process of nitrification is currently the most economical and commonly employed means of removing ammonia from wastewater. Although nitrification is cost-effective and has been used in many treatment facilities in North America, the temperature sensitivity of suspended growth nitrifying bacteria is of considerable concern when designing wastewater treatment facilities in many North American cities. Notwithstanding the limited ability of suspended growth treatment systems to achieve nitrific
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Song, June S. "Effect of copper on nitrifying and heterotrophic populations in activated sludge." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file., 142 p, 2005. http://proquest.umi.com/pqdweb?did=954050351&sid=7&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Smith, Timothy R. "Evaluating the effectiveness of commercial nitrifying bacteria in a constructed wetland." Virtual Press, 1996. http://liblink.bsu.edu/uhtbin/catkey/1020149.

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This research was conducted to determine the effects of commercially available nitrifying bacteria in a constructed wetland. The study was conducted at Paws, Inc., near Desoto, Indiana during the summer of 1995. The wetland, called Solar Aquatics Treatment System (SAS), was developed by Ecological Engineering Associates and constructed in a, greenhouse. The commercial nitrifying bacteria (Bacta-Pur), contained Nitrosomonas and Nitrobacter Spp. and have been added to the wetland for the past five years to aid in the removal of nitrogen.Water samples were taken from the wetland and analyzed for
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Books on the topic "Nitrifying"

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Speitel, Gerald E. Cometabolism of trihalomethanes in nitrifying biofilters. Denver, Colo: Awwa Research Foundation, 2005.

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Moir, James W. B. Nitrogen cycling in bacteria: Molecular analysis. Norfolk, UK: Caister Academic Press, 2011.

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Zimmerman, Robert Allan. Acclimation of nitrifiers for activated sludge treatment: A bench-scale evaluation. Alexandria, VA: Water Environment Research Foundation, 2004.

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Harrison, F. C. Co-operative experiments with nodule forming bacteria. Toronto: Dept. of Agriculture, 1997.

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Nyberg, Karin. Impact of organic waste residues on structure and function of soil bacterial communities with emphasis on ammonia oxidizing bacteria. Uppsala: Swedish University of Agricultural Sciences, 2006.

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Wong, Tommy S. W. Overland flow and surface runoff. Hauppauge, N.Y: Nova Science Publishers, 2011.

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I, Prosser James, and Society for General Microbiology, eds. Nitrification. Oxford: Published for the Society for General Microbiology by IRL Press, 1986.

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Juliette, Lisa Yvonne. In vivo and in vitro characterization of ammonia monooxygenase in Nitrosomonas europaea. 1995.

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Duddleston, Khrystyne Noel. Properties of methyl bromide cooxidation by ammonia-oxidizing bacteria. 1998.

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Keener, William Kelvin. Interactions of ammonia monooxygenase in Nitrosomonas europaea with hydrocarbons and subtituted hydrocarbons. 1995.

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Book chapters on the topic "Nitrifying"

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Spieck, Eva, and Eberhard Bock. "Nitrifying Bacteria." In Bergey’s Manual® of Systematic Bacteriology, 137–40. Boston, MA: Springer US, 2005. http://dx.doi.org/10.1007/0-387-28021-9_17.

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Schmidt, E. L., and L. W. Belser. "Nitrifying Bacteria." In Agronomy Monographs, 1027–42. Madison, WI, USA: American Society of Agronomy, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr9.2.2ed.c48.

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Alexander, M., and Francis E. Clark. "Nitrifying Bacteria." In Agronomy Monographs, 1477–83. Madison, WI, USA: American Society of Agronomy, Soil Science Society of America, 2016. http://dx.doi.org/10.2134/agronmonogr9.2.c51.

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Schmidt, Edwin L., and L. W. Belser. "Autotrophic Nitrifying Bacteria." In SSSA Book Series, 159–77. Madison, WI, USA: Soil Science Society of America, 2018. http://dx.doi.org/10.2136/sssabookser5.2.c10.

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Saha, Mousumi, Agniswar Sarkar, and Bidyut Bandyopadhyay. "Phylogenetic Characterization of Nitrifying Bacteria Isolated from East Kolkata Wetland." In Proceedings of the Conference BioSangam 2022: Emerging Trends in Biotechnology (BIOSANGAM 2022), 114–22. Dordrecht: Atlantis Press International BV, 2022. http://dx.doi.org/10.2991/978-94-6463-020-6_12.

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AbstractEast Kolkata Wetland (EKW) is an “International Ramsar Site”, famous for broad biodiversity and insightful use of sewage for aquaculture. Native nitrifying bacteria of EKW play a significant role in maintaining water quality and controlling environmental pollution by converting ammonia into nitrate in wastewater. Therefore, the characterization of nitrifying bacteria is important in EKW. Thus, the main focus of this research was to identify and characterize the nitrifying bacteria, investigating their phylogeny and diversity in EKW. 16S rRNA and functional genes analysis may help in the proper evaluation of composition and distribution of nitrifying bacteria in some water bodies in EKW, which has not yet been explored. Molecular and phylogenetic characterization was targeted and achieved through 16S rRNA and functional gene analysis, followed by computational estimation. Resulted sequences were analysed to gain insight into the knowledge for global and local taxonomic orientation. Hence, a model can be created for characterizing the dynamics of nitrifying bacteria in wastewater treatment and sustainable aquaculture in different water bodies of EKW. Graphical Abstract
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Heyman, U., B. Heyman, and Bess B. Ward. "Cell Affinity Chromatography for a Marine Nitrifying Bacterium." In Lecture Notes on Coastal and Estuarine Studies, 100–116. New York, NY: Springer New York, 1988. http://dx.doi.org/10.1007/978-1-4684-7642-2_6.

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Heyman, U., B. Heyman, and Bess B. Ward. "Cell Affinity Chromatography for a Marine Nitrifying Bacterium." In Lecture Notes on Coastal and Estuarine Studies, 100–116. New York: Springer-Verlag, 2013. http://dx.doi.org/10.1029/ln025p0100.

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Gooijer, C. D., R. H. Wijffels, and J. Tramper. "Dynamic Modeling the Growth of Immobilized Nitrifying Bacteria : Biofilm Development." In Biofilms — Science and Technology, 291–96. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-1824-8_25.

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Abeliovich, Aharon. "Transformations of ammonia and the environmental impact of nitrifying bacteria." In Microorganisms to Combat Pollution, 131–40. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-1672-5_10.

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Averill, Bruce A. "Transformation of Inorganic N-Oxides by Denitrifying and Nitrifying Bacteria." In Biodegradation of Nitroaromatic Compounds, 183–97. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4757-9447-2_11.

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Conference papers on the topic "Nitrifying"

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Wenbo Na. "Optimization control system for nitrifying process." In 2011 International Conference on Modelling, Identification and Control. IEEE, 2011. http://dx.doi.org/10.1109/icmic.2011.5973735.

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Zeghal, S., L. BenYahia, Ch Lasseur, and F. Rogalla. "Study of the Nitrifying Compartment in MELISSA." In International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1994. http://dx.doi.org/10.4271/941345.

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LUO, YUNJING, SHUANG CUI, LONG ZHANG, and RUGANG ZHONG. "EFFECTS OF METAL IONS ON PEROXYNITRITE NITRIFYING PROTEIN." In Proceedings of the 15th International Symposium. WORLD SCIENTIFIC, 2008. http://dx.doi.org/10.1142/9789812839589_0093.

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Qunyan Shi, Peide Sun, Yingqi Song, and Shaoting Du. "Enrichment of nitrifying bacterial in sequencing batch reactors." In 2011 International Symposium on Water Resource and Environmental Protection (ISWREP). IEEE, 2011. http://dx.doi.org/10.1109/iswrep.2011.5893238.

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Wei, Zaishan, and Hejingying Niu. "Biofiltetration of Nitrogen Oxides by Immobilized Nitrifying Bacteria Cells." In 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2010. http://dx.doi.org/10.1109/icbbe.2010.5516512.

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Lou, Xiaochun. "Intelligent control system for nitrifying process in dinitrochlorobenzene production." In 2010 Seventh International Conference on Fuzzy Systems and Knowledge Discovery (FSKD). IEEE, 2010. http://dx.doi.org/10.1109/fskd.2010.5569664.

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Luo, Yunjing, Qi Zhu, Shuang Cui, Dawei Zheng, and Jiangnan Suo. "Research on Specroscopy of Cu(II) on Peroxynitrite Nitrifying Fibrinogen." In 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2010. http://dx.doi.org/10.1109/icbbe.2010.5515063.

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Elling, F. J., T. W. Evans, J. D. Hemingway, J. J. Kharbush, V. Nathan, B. Bayer, A. E. Santoro, E. Spieck, R. E. Summons, and A. Pearson. "Marine and Terrestrial Nitrifying Bacteria are Sources of Diverse Bacteriohopanepolyols." In 30th International Meeting on Organic Geochemistry (IMOG 2021). European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.202134112.

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Lu, Min, Tong Ouyang, Zhilong Ye, and Yaoxing Liu. "Raw Oyster Shells as Carrier for Nitrifying Biofilm in Aerated Biofilter." In 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2010. http://dx.doi.org/10.1109/icbbe.2010.5517618.

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Na, Wenbo, Wei Liu, Xin Hong, and Lidong Fan. "Optimization of control system for Nitrifying Process in two nitro chlorobenzene production." In 2015 34th Chinese Control Conference (CCC). IEEE, 2015. http://dx.doi.org/10.1109/chicc.2015.7260011.

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Reports on the topic "Nitrifying"

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Shi, Cindy. Development of Novel Random Network Theory-Based Approaches to Identify Network Interactions among Nitrifying Bacteria. Office of Scientific and Technical Information (OSTI), July 2015. http://dx.doi.org/10.2172/1194724.

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Van Rijn, Jaap, Harold Schreier, and Yossi Tal. Anaerobic ammonia oxidation as a novel approach for water treatment in marine and freshwater aquaculture recirculating systems. United States Department of Agriculture, December 2006. http://dx.doi.org/10.32747/2006.7696511.bard.

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Ammonia waste removal in recirculating aquaculture systems is typically accomplished via the action of nitrifying bacteria in specially designed biofilters that oxidize ammonia to produce nitrate. In the majority of these systems nitrate is discharged to the environment through frequent water exchanges. As environmental considerations have made it necessary to eliminate nitrate release, new strategies for nitrate consumption are being developed. In the funding period we showed that ammonia removal from wastewater could take place by an anaerobic ammonia oxidation process carried out by bacteri
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