Relevant bibliographies by topics / Denitrification

Academic literature on the topic 'Denitrification'

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Published: 4 June 2021
Last updated: 28 July 2024

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Journal articles on the topic "Denitrification"

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Hong, Xiaohong, Liaofan Tang, Haixia Feng, Xiaolei Zhang, and Xianqiong Hu. "Agriculture Waste as Slow Carbon Releasing Source of Mixotrophic Denitrification Process for Treating Low C/N Wastewater." Separations 9, no. 10 (October 21, 2022): 323. http://dx.doi.org/10.3390/separations9100323.

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Mixotrophic denitrification has showed great potential for treating wastewater with a low C/N ratio. Mixotrophic denitrification is the process combining autotrophic denitrification and heterotrophic denitrification in one system. It can compensate the disadvantage of the both denitrifications. Instead of using sodium acetate and glucose as carbon source for the heterotrophic denitrification, agriculture solid wastes including rice straw (RS), wheat straw (WS), and corncob (CC) were employed in this study to investigate their potential as carbon source for treating low C/N wastewater. The carbon releasing pattern of the three carbon rich materials has been studied as well as their capacity in denitrification. The results showed that the highest denitrification occurred in the corncob system which was 0.34 kg N/(m3·d). Corncob was then selected to combine with sulfur beads to build the mixotrophic denitrification system. The reactor packed with sulfur bead on the top and corncob on the bottom achieved 0.34 kg N/(m3·d) denitrification efficiency, which is higher than that of the reactor packed with completely mixed sulfur bead and corncob. The autotrophic denitrification and heterotrophic denitrification were 42.2% and 57.8%, respectively. The microorganisms in the sulfur layer were Thermomonas, Ferritrophicum, Thiobacillus belonging to autotrophic denitrification bacteria. Kouleothrix and Geothrix were mostly found in the corncob layer, which have the function for fiber hydrolysis and denitrification. The study has provided an insight into agriculture solid waste application and enhancement on denitrification of wastewater treatment.
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Xie, Li, Chi Ji, Rui Wang, and Qi Zhou. "Microbial Communities in Anaerobic Acidification-Denitrification and Methanogenesis Process for Cassava Stillage Treatment." Applied Mechanics and Materials 522-524 (February 2014): 573–78. http://dx.doi.org/10.4028/www.scientific.net/amm.522-524.573.

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This study investigated operational performance and microbial communities in the integrated acidification-denitrification bioreactor and the followed methanogenesis process. Industrial wastewater, cassava stillage (CS) was used as the carbon source amended with or without nitrate. The results showed that acidification and denitrification could occur simultaneously in a single acidification-denitrification reactor, and denitrificatoin did not suppress the acidogenic activity. Both denitrification and DNRA could contribute to nitrate reduction and proportions of them were about 60% and 40% respectively at the tested condition of COD/NO3-Nof 50. The introduction of nitrate into acidogenic phase did not have any effect on the followed methanogenic process. Microbial communities sampled from two systems were analyzed by culture-independent techniques based on PCR-DGGE. The relative abundance of acid-producing bacteria (primarily Parabacteroides distasonis and Chloroflexi) in the nitrate-amended reactor further confirmed that the addition of nitrate did not suppress the activity of acid-producing bacteria. Bacteria involved in denitrification and DNRA were also detected. The archaeal communities in methanogenic reactors of two systems showed no significant differences. And Methanoculleus and Methanolobus were the dominant bacteria in the culture.
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Saeed, Waleed, Orfan Shouakar-Stash, Andrè Unger, and Warren W. Wood. "Application of Multi-Tracer Methods to Evaluate Nitrate Sources and Transformation in Sabkha Matti (Saudi Arabia)." E3S Web of Conferences 98 (2019): 12018. http://dx.doi.org/10.1051/e3sconf/20199812018.

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An unusually high concentration of nitrate (NO3) ranging between 291 and 6790 mg/L (as N) was observed during a review of solute data for brine samples from the inland Sabkha Matti. A multi-tracer approach considering water chemistry, stable nitrate isotopes (δ15N and δ18O), and the radioactive isotope of hydrogen (tritium, 3H) was utilized to evaluate the nitrate sources and transformation in this hydrogeological setting. The results suggested that the source of the high nitrate levels is related to a leakage from a manure/septic system near the proximal eastern edge of the Sabkha. Moreover, the impact of Sabkha’s characteristics on biological denitrifications was evaluated in this study. The results suggest that denitrification was not a major process in Sabkha Matti. Several factors may contribute to the limitation of denitrification on the brine samples including high dissolved oxygen contents, high salinity and chloride.
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Grgas, Dijana, Tibela Landeka Dragičević, Anita Štrkalj, Andrijana Brozinčević, Mirjana Galant, and Tea Štefanac. "Biological denitrification." Hrvatski časopis za prehrambenu tehnologiju, biotehnologiju i nutricionizam 16, no. 1-2 (June 1, 2021): 28–34. http://dx.doi.org/10.31895/hcptbn.16.1-2.4.

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Ubrzani napredak industrije, poljoprivrede i domaćinstva su pogodovali povišenim koncentracijama dušika u vodenom ekosustavu, što uzrokuje eutrofikaciju. Dušik se iz otpadne vode uklanja procesom biološke denitrifikacije. U ovom preglednom radu dan je osvrt na denitrifikaciju, s aspekta mikroorganizama, koncentracije otopljenog kisika, donora i akceptora elektrona.
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Kafkewitz, David, and Jung Jeng Su. "Aerobic denitrification." Trends in Ecology & Evolution 9, no. 4 (April 1994): 149. http://dx.doi.org/10.1016/0169-5347(94)90182-1.

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Yeomans, J. C., J. M. Bremner, and G. W. McCarty. "Denitrification capacity and denitrification potential of subsurface soils." Communications in Soil Science and Plant Analysis 23, no. 9-10 (June 1992): 919–27. http://dx.doi.org/10.1080/00103629209368639.

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Vermes, Jean-François, and David D. Myrold. "Denitrification in forest soils of Oregon." Canadian Journal of Forest Research 22, no. 4 (April 1, 1992): 504–12. http://dx.doi.org/10.1139/x92-066.

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Denitrification represents a potential loss of N from forest soils as well as a source of N oxides to the atmosphere; however, this process has not been closely examined in forest ecosystems of the Pacific Northwest. The objectives of this study were to survey insitu denitrification rates in a range of forest ecosystems and to assess the importance of selected soil properties as controlling factors of denitrification in forest soils. Soils from eight mature conifer stands, three recently clear-cut sites, and four Alnusrubra Bong, stands were sampled in spring, summer, and autumn. Denitrification potentials (anaerobic soil slurries), insitu denitrification rates, soil respiration rates, soil water contents, and soil NO3− concentrations were measured. Denitrification potentials ranged from <1 to 1900 ng N•g−1•h−1, and insitu denitrification rates varied from 0.1 to 40 g N•ha−1•day−1. Denitrification potentials were highly correlated with soil NO3− concentrations and soil water contents; these two soil variables explained more than 90% of the variation in denitrification potentials. Field denitrification rates were best correlated with soil water contents: using multiple regression, up to 79% of the variation in field denitrification rates was explained by soil water contents. Experiments on the short-term dynamics of denitrification following water addition confirmed the importance of soil water content as a regulator of denitrification and suggested that active denitrification requires formation of anaerobic microsites. Extrapolation of seasonal denitrification measurements suggests that relatively little N (<10 kg N•ha−1•year−1) is lost from Oregon forest soils as N gases.
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Isokpehi, Raphael D., Yungkul Kim, Sarah E. Krejci, and Vishwa D. Trivedi. "Ecological Trait-Based Digital Categorization of Microbial Genomes for Denitrification Potential." Microorganisms 12, no. 4 (April 13, 2024): 791. http://dx.doi.org/10.3390/microorganisms12040791.

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Microorganisms encode proteins that function in the transformations of useful and harmful nitrogenous compounds in the global nitrogen cycle. The major transformations in the nitrogen cycle are nitrogen fixation, nitrification, denitrification, anaerobic ammonium oxidation, and ammonification. The focus of this report is the complex biogeochemical process of denitrification, which, in the complete form, consists of a series of four enzyme-catalyzed reduction reactions that transforms nitrate to nitrogen gas. Denitrification is a microbial strain-level ecological trait (characteristic), and denitrification potential (functional performance) can be inferred from trait rules that rely on the presence or absence of genes for denitrifying enzymes in microbial genomes. Despite the global significance of denitrification and associated large-scale genomic and scholarly data sources, there is lack of datasets and interactive computational tools for investigating microbial genomes according to denitrification trait rules. Therefore, our goal is to categorize archaeal and bacterial genomes by denitrification potential based on denitrification traits defined by rules of enzyme involvement in the denitrification reduction steps. We report the integration of datasets on genome, taxonomic lineage, ecosystem, and denitrifying enzymes to provide data investigations context for the denitrification potential of microbial strains. We constructed an ecosystem and taxonomic annotated denitrification potential dataset of 62,624 microbial genomes (866 archaea and 61,758 bacteria) that encode at least one of the twelve denitrifying enzymes in the four-step canonical denitrification pathway. Our four-digit binary-coding scheme categorized the microbial genomes to one of sixteen denitrification traits including complete denitrification traits assigned to 3280 genomes from 260 bacteria genera. The bacterial strains with complete denitrification potential pattern included Arcobacteraceae strains isolated or detected in diverse ecosystems including aquatic, human, plant, and Mollusca (shellfish). The dataset on microbial denitrification potential and associated interactive data investigations tools can serve as research resources for understanding the biochemical, molecular, and physiological aspects of microbial denitrification, among others. The microbial denitrification data resources produced in our research can also be useful for identifying microbial strains for synthetic denitrifying communities.
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Pániková, Kristína, Zuzana Bílková, and Jitka Malá. "The Behavior of Terbuthylazine, Tebuconazole, and Alachlor during Denitrification Process." Journal of Xenobiotics 13, no. 4 (October 1, 2023): 560–71. http://dx.doi.org/10.3390/jox13040036.

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Pesticide compounds can influence denitrification processes in groundwater in many ways. This study observed behavior of three selected pesticides under denitrifying conditions. Alachlor, terbuthylazine, and tebuconazole, in a concentration of 0.1 mL L−1, were examined using two laboratory denitrifications assays: a “short” 7-day and a “long” 28-day test. During these tests, removal of pesticides via adsorption and biotic decomposition, as well as the efficiency of nitrate removal in the presence of the pesticides, were measured. No considerable inhibition of the denitrification process was observed for any of the pesticides. On the contrary, significant stimulation was observed after 21 days for alachlor (49%) and after seven days for terbuthylazine (40%) and tebuconazole (36%). Adsorption was in progress only during the first seven days in the case of all tested pesticides and increased only negligibly afterwards. Immediate adsorption of terbuthylazine was probably influenced by the mercuric chloride inhibitor. A biotic loss of 4% was measured only in the case of alachlor.
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Machefert, S. E., and N. B. Dise. "Hydrological controls on denitrification in riparian ecosystems." Hydrology and Earth System Sciences 8, no. 4 (August 31, 2004): 686–94. http://dx.doi.org/10.5194/hess-8-686-2004.

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Abstract. Nitrous oxide fluxes and denitrification rates were measured in situ over a year at a riparian site in the UK. An exponential relationship was found between denitrification rates and soil moisture, with a sharp increase in denitrification rate at a water-filled pore space of 60–80%. Similar relationships were found in other studies compiled for comparison. The present study is unique in measuring denitrification in an "intact" ecosystem in the field, rather than in cores in the field or the lab. The exponential relationship between denitrification rate and soil moisture, with a "threshold" at 60–80% water-filled pore space (20–40% gravimetric moisture), has proven to be comparable across a wide range of ecosystems, treatments and study conditions. Whereas moisture content determines the potential for denitrification, the absolute rate of denitrification is determined by available nitrate (NO3-), dissolved organic carbon and temperature. As a first approximation, denitrification rates can be simply modelled by using a general exponential relationship between denitrification potential and water-filled pore space (or volumetric/gravimetric water content) multiplied by a constant value determined by the nitrogen status of the site. As such, it is recommended that the current relationship used in INCA to relate denitrification to soil moisture be amended to an exponential form, with a threshold of approximately 70% for the onset of denitrification. Keywords: nitrous oxide, denitrification, soil moisture, nitrogen, eutrophication, riparian
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Dissertations / Theses on the topic "Denitrification"

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Wu, Qitu. "Denitrification in Flexibacter canadensis." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28962.

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Nitrate reductase (Nar) of F. canadensis is membrane-bound. Glucose is the most effective reductant to support nitrate uptake, and methyl and benzyl viologens are good electron donors to Nar both in intact cells and in membrane fractions. Nitrate uptake depends upon nitrate reduction, and requires the presence of active Nar. Nitrate transport depends upon the transmembrane pH gradient.
Oxygen reversibly inhibits nitrate uptake, and the minimal air saturation for this inhibition is about 2-4%. Oxygen inhibits denitrification at the level of nitrate transport rather than its reduction. The reduction of both nitric oxide (NO) and nitrous oxide by F. canadensis is relatively tolerant to oxygen, and its nitrite reductase (Nir) is much more sensitive to oxygen than the other reductases. Neither copper- nor heme-type Nir DNA probes from Pseudomonas species hybridized with the total DNA of F. canadensis, indicating that F. canadensis Nir may possess unique properties.
F. canadensis keeps the NO concentration very low under normal conditions. However, ionophores (carbonyl cyanide m-chlorophenylhydrazone (CCCP), carbonyl cyanide p-trifluoromethoxylphenylhydrazone (FCCP), and nigericin), high concentrations of nitrite, and low pH stimulate net NO production during reduction of nitrite. NO consumption by F. canadensis inhibited by several inhibitors. They are azide, cyanide, CCCP, FCCP, nigericin, sulfide, hydroxylamine, carbon monoxide, diethyldithiocarbamate, and Triton X-100. NO is toxic to Nor (nitric oxide reductase) only at concentrations $>$67 nM.
Studies on chloramphenicol inhibition of denitrification enzyme activity indicate that chloramphenicol inhibits denitrification at the levels of nitrate reduction and NO consumption in F. canadensis.
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Bocking, Christopher. "Modelling denitrification in soil." Thesis, University of East Anglia, 2013. https://ueaeprints.uea.ac.uk/48043/.

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Denitrification is a process used by many bacterial species to support anaerobic respiration, where, faced with a lack of oxygen, energy is instead created from available nitrates. Arable soils with high nitrogen content, and commonly-used fertilisers, encourage this process. Unfortunately, the ultimate impact on the environment is negative since nitrous oxide gas, which emerges as a bi-product, escapes into the atmosphere where it presents a 300-fold greater danger for global warming than carbon dioxide. The aim of this thesis is find a way to estimate the level of nitrous oxide which may escape into the atmosphere from denitrifying soil. Traditionally, the chain of chemical reactions followed in the denitrification process is modelled using Michaelis-Menten kinetics. We begin this thesis by reviewing existing work, discussing some of its limitations and proposing various alterations. Later, we present a preliminary model of the oxygen distribution within a soil with the aim of identifying anaerobic micro-sites where bacteria can denitrify. Our first models consist of a solitary circle of oxygen-absorbing soil residing beneath ground level in an environment saturated with oxygen. We show that normal respiration occurs inside the circle except within a core anaerobic region where denitrification occurs. We extend the oxygen distribution model by generalising to multiple oxygen-absorbing regions. The model is then considered from two viewpoints. We either think of the model as an aggregated soil where each circle represents an individual aggregate surrounded by air. Or we think of the model as a solid non-aggregated soil, where each circle represents a high respiration area. For both of these viewpoints results are found for realistic parameters and levels of denitrification within the soil can be estimated.
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Fonseca, Anabela Duarte. "Denitrification in Membrane Bioreactors." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/35212.

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Three membrane bioreactors, a low flux filter (LFF), a diafilter (DF), and an ion-exchange (IE) membrane bioreactor were used to treat water polluted with 50 ppm-N nitrate. The three systems were compared in terms of removal efficiency of nitrate, operational complexity, and overall quality of the treated water. In the low flux filter (LFF) membrane bioreactor an hemo-dialysis hollow fiber module was used and operated continuously for 29 days with a constant flux of permeate. The performance of the system was constant during the span of the experiment, which demonstrated that when the module was operated under constant low flux of permeate, the membrane filtration process was not affected by fouling. The removal rate of the LFF was 100% since the treated effluent did not contain nitrate or nitrite. The volumetric denitrification rate was 240 g-N day-1 m-3, which is within the range of denitrification rates obtained in tubular membrane modules. The treated effluent contained acetate, the carbon source of the biological process, and other inorganic nutrients, which showed that operating this ultrafiltration module at controlled flux did not improve the retention of these substances in the bioreactor. The same hemo-dialysis hollow fiber module employed in the LFF system was used in the diafilter (DF) membrane bioreactor. In the DF system, however, the membrane module was used as a contactor that separated the treated water and the bioreactor system, which allowed the transfer of solutes through the membrane porous structure and supported the growth of a biofilm on the membrane surface. The nitrate removal rate of the DF system increased from 76% to 91% during the 17 days assay. Unfortunately, this improvement could be attributed to microbial contamination of the water circuit because significant concentrations of the carbon source, acetate, nutrients, and nitrate were found in the treated effluent. The volumetric denitrification rate of the system was 200 g-N day-1 m-3, and the surface denitrification rate was lower than values previously reported for contactor membrane bioreactors. The results hereby presented do not evidence any advantage of operating the Filtral 20 ® membrane module as a contactor instead of as a filter such as in the LFF system. On the other hand, the third system herein presented, the IE membrane bioreactor, demonstrated several advantages of a contactor configuration but with a non-porous ion exchange membrane module in place of the Filtral 20 ®. As in a contactor system, the anion membrane provided a surface for biofilm growth, facilitated the transport of nitrate, and prevented mixing of treated water and bioreactor medium. Compared to the two previous systems, the most remarkable result of the IE was the reduction of secondary pollution in the treated water. The concentrations of phosphate and ethanol were zero and less than 1% of the concentration in the bioreactor, respectively. In addition, the IE system was less complex than the two other systems because the ion exchange membrane is non-porous. Therefore, unlike with porous contactors, it was not necessary to control the flux of treated water that could be lost through the bioreactor. The average surface denitrification rate of the IE system was 7.0 g-N day-1 m-2, which is higher than what had been reported for other contactor denitrification systems. However, because of the low surface to volume ratio of the membrane module that was used, the volumetric denitrification rate of the IE system was low, equivalent to 65 g-N day-1 m-3.
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Bell, Louise Carol. "Electron transport reactions of denitrification." Thesis, University of Oxford, 1990. https://ora.ox.ac.uk/objects/uuid:9625557a-fe52-4c94-bc1f-a544275df344.

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A study is reported which demonstrates that electron transport to the reductase reactions of denitrification in the bacterium Thiosphaera pantotropha can occur aerobically. Use of dark-type electrodes has demonstrated that the N2O reductase enzyme of this organism is active under aerobic conditions, and that O2 and N2O reduction can occur simultaneously. The reduction of NO3- to N2 gas, even under aerobic conditions, is shown to proceed via NO as an intermediate. It is concluded that the reaction of NO with O2 must be sufficiently slow that it does not effectively compete with the reduction of NO to N2O. The ability of T. pantotropha to catalyse aerobic NO3- reduction, the first step of the aerobic denitrification process, is shown to correlate with the expression of a NO3- reductase enzyme that is located in the periplasm. This periplasmic enzyme is expressed, and is active, under both aerobic and anaerobic conditions. A membrane bound NO3- reductase is also expressed, but only under anaerobic conditions, by this organism. This latter reductase resembles the NO3- reductase of Paracoccus denitrificans in respect of both its catalytic properties and the inhibition of activity in intact cells under aerobic conditions. Mutants of T. pantotropha that lack the membrane bound NO3- reductase, and not only retain but overproduce the periplasmic enzyme, have been obtained via Tn5 mutagenesis. The periplasmic NO3- reductase identified in T. pantotropha bears catalytic and structural similarities to an enzyme previously characterised in some strains of Rhodobacter capsulatus. The ability of strains of R. capsulatus to reduce NO to N2O is reported together with evidence that there is a discrete NO reductase in this organism. The electron transport pathway to NO reductase has been elucidated. The first identification of a denitrifying strain of R. capsulatus is reported.
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Matchett, Lisa Susanne. "Denitrification in riparian buffer zones." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310427.

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McAdam, Ewan J. "Denitrification using immersed membrane bioreactors." Thesis, Cranfield University, 2008. http://dspace.lib.cranfield.ac.uk/handle/1826/6281.

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Nitrate is practically ubiquitous in waters abstracted for municipal potable water production in Europe due to decades of intensive agricultural practice. Ion exchange is principally selected to target abstracted waters with elevated nitrate concentrations. However, the cost associated with disposal of the waste stream has re-ignited interest in destructive rather concentrative technologies. This thesis explores the potential of membrane bioreactor (MBR) technology for the removal of nitrate from potable water. Two configurations are considered: an MBR to replace ion-exchange completely; and an MBR to treat the ion-exchange waste stream in-situ for re-use. For the replacement MBR, permeate quality can be affected by nitrite accumulation, micro-organism and carbon breakthrough. However, at steady-state and provided substrate addition was controlled, permeate quality was consistently high. Selection of an appropriate substrate was observed to improve permeability by a factor of three. Permeability was sustained within the MBR by adopting a dead-end filtration strategy having identified a relationship between filtered volume, flux and suspended solids concentration. Provided the filtered volume within a single filtration cycle did not exceed a set volume, the accumulated deposit was reversible. For the ion-exchange waste stream MBR, organic carbon breakthrough was considerable. However, the impact upon resin capacity was apparently limited when permeate was re-used for resin regeneration. Salt shocking did not induce permeability decline although some denitrification capacity was lost. Cost evaluation demonstrated that operating ion- exchange in parallel with MBR regenerant treatment was more cost effective than ion exchange with direct disposal.
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Hartmann, Derek R. "Denitrification using rotating biological contactors." Thesis, Bradley University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1554015.

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Nitrogen and phosphorus are known to cause eutrophic conditions in lakes and rivers, resulting ultimately in deteriorating water quality in these natural systems. Nitrate poses a threat to the ecosystem and aquatic life, and also has an adverse impact on human health when present in water in large concentrations. Regulatory bodies such as the Federal EPA and state agencies are imposing increasingly stringent effluent standards on point sources to protect and preserve natural water bodies. Technologies using biological nutrient removal processes are being incorporated into the waste treatment scheme at most wastewater treatment plants in an attempt to limit nutrient discharge. The use of completely-submerged anoxic rotating biological contactors (RBCs) to remove NO3-N is a relatively new concept, although RBCs have been used for removal of ammonia and biochemical oxygen demand (BOD) for some time. In this study, HDPE disks (10” x 9”) obtained from the Greater Peoria Sanitary District (GPSD) were used as RBC media and mounted on a shaft rotating at 1 rpm in two 20-liter enclosed reactors. At a flowrate of 45 liters per day, synthetic wastewater containing sodium citrate as the carbon source and nitrate as the electron acceptor was used as influent. The duration of each experiment was about 30 days, during which, overall nitrate removal and denitrification rate constants were estimated under different experimental conditions. Factors affecting startup growth were also identified.

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Powell, Kelly Lynn. "Denitrification in Agricultural Headwater Ditches." The Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=osu1392978328.

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Bartley, Christopher Brandon. "A search for chemolithotrophic denitrification." Thesis, Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-06072004-131052/unrestricted/bartley%5Fchristopher%5Fb%5F200405%5Fms.pdf.

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CECCONET, DANIELE. "Bioelectrochemical systems for groundwater denitrification." Doctoral thesis, Università degli studi di Pavia, 2019. http://hdl.handle.net/11571/1272067.

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Books on the topic "Denitrification"

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Moura, Isabel, José J. G. Moura, Sofia R. Pauleta, and Luisa B. Maia, eds. Metalloenzymes in Denitrification. Cambridge: Royal Society of Chemistry, 2016. http://dx.doi.org/10.1039/9781782623762.

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Sequencing batch reactors for nitrification and nutrient removal. Washington, D.C.]: U.S. Environmental Protection Agency, Office of Water, 1992.

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Revsbech, Niels Peter, and Jan Sørensen, eds. Denitrification in Soil and Sediment. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4757-9969-9.

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Golterman, Han L., ed. Denitrification in the Nitrogen Cycle. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4757-9972-9.

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Peter, Revsbech Niels, Sørensen Jan, Federation of European Microbiological Societies., and Denmark Miljøministeriet, eds. Denitrification in soil and sediment. New York: Plenum Press, 1990.

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NATO Advanced Research Workshop on Denitrification in the Nitrogen Cycle (1983 Braunschweig, Germany). Denitrification in the nitrogen cycle. New York: Plenum Press, 1985.

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L, Golterman Han, and NATO Scientific Affairs Division, eds. Denitrification in the nitrogen cycle. New York: Published in cooperation with NATO Scientific Affairs Division (by) Plenum, 1985.

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Chambers, Douglas B. Physical, chemical, and biological data for four wetland habitats in Canaan Valley, West Virginia. Charleston, W. Va: U.S. Geological Survey, 1996.

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T, Lindstrom F., and Robert S. Kerr Environmental Research Laboratory, eds. Denitrification in nonhomogenous laboratory scale aquifers. Ada, OK: U.S. Environmental Protection Agency, Robert S. Kerr Environmental Research Laboratory, 1991.

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National Risk Management Research Laboratory (U.S.) and Superfund Innovative Technology Evaluation Program (U.S.), eds. EcoMat Inc.'s biological denitrification process. Cincinnati, Ohio: National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 2002.

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Book chapters on the topic "Denitrification"

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Li, Liang-Mo. "Denitrification." In Nitrogen in Soils of China, 159–92. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5636-3_8.

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Amils, Ricardo. "Denitrification." In Encyclopedia of Astrobiology, 624–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_408.

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Amils, Ricardo. "Denitrification." In Encyclopedia of Astrobiology, 418–19. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_408.

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Gooch, Jan W. "Denitrification." In Encyclopedic Dictionary of Polymers, 886. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_13537.

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Reitner, Joachim, and Volker Thiel. "Denitrification." In Encyclopedia of Geobiology, 322. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-1-4020-9212-1_246.

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Amils, Ricardo. "Denitrification." In Encyclopedia of Astrobiology, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_408-2.

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Broadbent, F. E., and Francis Clark. "Denitrification." In Soil Nitrogen, 344–59. Madison, WI, USA: American Society of Agronomy, 2015. http://dx.doi.org/10.2134/agronmonogr10.c9.

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Tiedje, James M. "Denitrification." In Agronomy Monographs, 1011–26. Madison, WI, USA: American Society of Agronomy, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr9.2.2ed.c47.

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Amils, Ricardo. "Denitrification." In Encyclopedia of Astrobiology, 775–76. Berlin, Heidelberg: Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65093-6_408.

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Goering, John J. "Marine Denitrification." In Denitrification in the Nitrogen Cycle, 191–224. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4757-9972-9_13.

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Conference papers on the topic "Denitrification"

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Zhao, Xianzhang, Hongjie Wang, Wenyi Dong, and Shilong Jiang. "Study on Operation Parameters Optimization and Denitrification Efficiency of Deep-Bed Denitrification Filter." In 2017 6th International Conference on Energy and Environmental Protection (ICEEP 2017). Paris, France: Atlantis Press, 2017. http://dx.doi.org/10.2991/iceep-17.2017.163.

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Meng, Xuezheng, Dong Qian, and Xiangsheng Cao. "Nitrite Accumulation During Wastewater Denitrification." In 2010 International Conference on Electrical and Control Engineering (ICECE 2010). IEEE, 2010. http://dx.doi.org/10.1109/icece.2010.1142.

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Xuezheng, Meng, Qian Dong, and Cao Xiangsheng. "Nitrite accumulation during wastewater denitrification." In 2010 International Conference on Mechanic Automation and Control Engineering (MACE). IEEE, 2010. http://dx.doi.org/10.1109/mace.2010.5535991.

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Wang Hongyu, Yang Kai, Sun Yuchong, Ming Jianpu, Lv Bin, and Yang Xiaojun. "Nitrate removal by Fe-dependent denitrification." In 2011 International Conference on Electric Technology and Civil Engineering (ICETCE). IEEE, 2011. http://dx.doi.org/10.1109/icetce.2011.5775877.

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Sun, Yewei, Wendell Khunjar, Zhi Wu Wang, Mari Winkler, and Ramesh Goel. "Combination of EBPR, Endogenous Denitrification, Partial Nitrification/Denitrification and Anammox to Achieve Cost-effective Nutrient Removal." In WEFTEC 2023. Water Environment Federation, 2023. http://dx.doi.org/10.2175/193864718825159157.

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MICHIOKU, kOHJI, KENJI TANAKA, HIROYA TANAKA, KOSUKE INOUE, TAMIHIRO NAKAMICHI, MASAHIRO YAGI, and NARIAKI WADA. "A NUMERICAL MODEL FOR DENITRIFICATION OF MUNICIPAL LANDFILL LEACHATE AND PARAMETRIC ANALYSIS ON DENITRIFICATION CONTROLLING FACTORS." In WASTE MANAGEMENT 2018. Southampton UK: WIT Press, 2018. http://dx.doi.org/10.2495/wm180301.

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Ma, XiaoCheng, JianXing Ren, WenRui Pan, XianPing Zeng, ZhiWu Hao, JianTao Liu, KunKun You, and YanChao Li. "Current situation of wet flue gas denitrification." In 2011 International Conference on Electrical and Control Engineering (ICECE). IEEE, 2011. http://dx.doi.org/10.1109/iceceng.2011.6058402.

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C.B. Fedler, P. R. Pearson, B. Mueller, and C. J. Green. "Effects of Denitrification on Irrigated Wastewater Systems." In 2003, Las Vegas, NV July 27-30, 2003. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2003. http://dx.doi.org/10.13031/2013.14041.

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Saeed Darian and David Stone. "Nitrification and Denitrification in a Single Basin." In 2004, Ottawa, Canada August 1 - 4, 2004. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2004. http://dx.doi.org/10.13031/2013.17035.

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Conrad, Philip, and Richard Marinos. "IMPACTS OF URBAN REGREENING ON SOIL DENITRIFICATION." In Joint 72nd Annual Southeastern/ 58th Annual Northeastern Section Meeting - 2023. Geological Society of America, 2023. http://dx.doi.org/10.1130/abs/2023se-385775.

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Reports on the topic "Denitrification"

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Christianson, Laura E., Matthew J. Helmers, and Carl H. Pederson. Denitrification Bioreactor in Northeast Iowa. Ames: Iowa State University, Digital Repository, 2011. http://dx.doi.org/10.31274/farmprogressreports-180814-1167.

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Helmers, Matt, and Carl Pederson. Denitrification Bioreactor in Northeast Iowa. Ames: Iowa State University, Digital Repository, 2017. http://dx.doi.org/10.31274/farmprogressreports-180814-1634.

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Christianson, Laura E., Matthew J. Helmers, and Carl H. Pederson. Hydraulic Performance of the Denitrification Bioreactor. Ames: Iowa State University, Digital Repository, 2012. http://dx.doi.org/10.31274/farmprogressreports-180814-588.

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Grissom, M. Flue gas desulfurization and denitrification: a bibliography. Office of Scientific and Technical Information (OSTI), January 1985. http://dx.doi.org/10.2172/6292111.

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Napier, J. M>. An Operational Guide to the Y-12 Denitrification Facility. Office of Scientific and Technical Information (OSTI), June 1986. http://dx.doi.org/10.2172/12354083.

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Hoover, Natasha L., and Michelle L. Soupir. Experimental Tile Drainage Denitrification Bioreactors: Pilot-Scale System for Replicated Field Research. Ames: Iowa State University, Digital Repository, 2017. http://dx.doi.org/10.31274/farmprogressreports-180814-1738.

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Mihelcic, J. R., and R. G. Luthy. Microbial degradation of polycyclic aromatic hydrocarbons under denitrification conditions in soil-water suspensions: Final report. Office of Scientific and Technical Information (OSTI), April 1988. http://dx.doi.org/10.2172/5870632.

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MacDonald, James D., Aharon Abeliovich, Manuel C. Lagunas-Solar, David Faiman, and John Kabshima. Treatment of Irrigation Effluent Water to Reduce Nitrogenous Contaminants and Plant Pathogens. United States Department of Agriculture, July 1993. http://dx.doi.org/10.32747/1993.7568092.bard.

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Abstract:
The contamination of surface and subterranean drinking water supplies with nitrogen-laden agricultural wastewater is a problem of increasing concern in the U.S. and Israel. Through this research, we found that bacteria could utilize common organic wastes (e.g. paper, straw, cotton) as carbon sources under anaerobic conditions, and reduce nitrate concentrations in wastewater to safe levels. Two species of bacteria, Cellulomonas uda and a Comamonas sp., were required for dentitrification. Celulomonas uda degraded cellulose and reduced nitrate to nitrite. In addition, it excreted soluble organic carbon needed as a food source by the Comamonas sp. for completion of denitrification. We also found that recirculated irrigation water contains substantial amounts of fungal inoculum, and that irrigating healthy plants with such water leads to significant levels of root infection. Water can be disinfected with UV, but our experiments showed that Hg-vapor lamps do not possess sufficient energy to kill spores in wastewater containing dissolved organics. Excimer lasers and Xenon flashlamps do possess the needed power levels, but only the laser had a high enough repetition rate to reliably treat large volumes of water. Ozone was highly efficacious, but it's use as a water treatment is probably best suited to moderate or low volume irrigation systems. This research provides critical data needed for the design of effective water denitrification and/or pathogen disinfection systems for different growing operations.
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Mihelcic, J. R., and R. G. Luthy. Microbial degradation of acenapthene and napthalene under denitrification conditions in soil--water systems: Annual report, October 1987. Office of Scientific and Technical Information (OSTI), October 1987. http://dx.doi.org/10.2172/6916930.

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McKinstry, G., T. Osborne, A. King, and C. Tolman. Proposal for optimizing a biological treatment system for denitrification of Y-12 waste stream. Final report, March 16, 1987--September 15, 1987. Office of Scientific and Technical Information (OSTI), December 1987. http://dx.doi.org/10.2172/10186350.

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