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Journal articles on the topic 'Nitrate minerals'

Author: Grafiati

Published: 4 June 2021

Last updated: 28 July 2025

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1

Margalef-Marti, Rosanna, Raul Carrey, Albert Soler, and Neus Otero. "Isotopic fractionation associated to nitrate attenuation by ferrous iron containing minerals." E3S Web of Conferences 98 (2019): 12013. http://dx.doi.org/10.1051/e3sconf/20199812013.

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Biotic and abiotic laboratory experiments of nitrate and nitrite reduction by Fe-containing minerals were performed and the isotopic fractionation of the different reactions was calculated in order to determine whether it is possible to distinguish biotic and abiotic reactions involving N compounds. Results of biotic experiments showed nitrate reduction up to 96 % with transient NO2- accumulation and no significant N2O production. No significant nitrate attenuation was observed in abiotic nitrate reduction experiments. Abiotic experiments of nitrite reduction showed a rapid decrease in nitrite

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2

Hou, Lingyu, Xiangyu Bai, Zihe Sima, et al. "Biological and Chemical Processes of Nitrate Reduction and Ferrous Oxidation Mediated by Shewanella oneidensis MR-1." Microorganisms 12, no. 12 (2024): 2454. http://dx.doi.org/10.3390/microorganisms12122454.

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Iron, Earth’s most abundant redox-active metal, undergoes both abiotic and microbial redox reactions that regulate the formation, transformation, and dissolution of iron minerals. The electron transfer between ferrous iron (Fe(II)) and ferric iron (Fe(III)) is critical for mineral dynamics, pollutant remediation, and global biogeochemical cycling. Bacteria play a significant role, especially in anaerobic Fe(II) oxidation, contributing to Fe(III) mineral formation in oxygen-depleted environments. In iron-rich, neutral anaerobic settings, microbial nitrate-reducing Fe(II) oxidation (NRFO) and ir

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3

FLIPOT, P. M., and G. OUELLET. "MINERAL AND NITRATE CONTENT OF SWINE DRINKING-WATER IN FOUR QUEBEC REGIONS." Canadian Journal of Animal Science 68, no. 3 (1988): 997–1000. http://dx.doi.org/10.4141/cjas88-114.

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A water quality survey of 83 hog farms was conducted in four swine-producing regions of Quebec. Samples were collected from the tap in the piggeries. The mineral content of drinking water varied considerably from farm to farm within regions. In general, drinking water was alkaline and nitrate concentrations were below toxic levels. The drinking water alone could supply up to 20% of a gestating sow's mineral requirements. In some cases (3.6 and 23%), sodium and copper requirements would be exceeded. Key words: Hog, drinking water, minerals, nitrates

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4

Klueglein, Nicole, Fabian Zeitvogel, York-Dieter Stierhof, et al. "Potential Role of Nitrite for Abiotic Fe(II) Oxidation and Cell Encrustation during Nitrate Reduction by Denitrifying Bacteria." Applied and Environmental Microbiology 80, no. 3 (2013): 1051–61. http://dx.doi.org/10.1128/aem.03277-13.

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ABSTRACTMicroorganisms have been observed to oxidize Fe(II) at neutral pH under anoxic and microoxic conditions. While most of the mixotrophic nitrate-reducing Fe(II)-oxidizing bacteria become encrusted with Fe(III)-rich minerals, photoautotrophic and microaerophilic Fe(II) oxidizers avoid cell encrustation. The Fe(II) oxidation mechanisms and the reasons for encrustation remain largely unresolved. Here we used cultivation-based methods and electron microscopy to compare two previously described nitrate-reducing Fe(II) oxidizers (Acidovoraxsp. strain BoFeN1 andPseudogulbenkianiasp. strain 2002

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5

Luetic, Sanja, Zlatka Knezovic, Katarina Jurcic, Marina Luetic Perasovic, and Davorka Sutlovic. "Nitrates and Nitrites in Leafy Vegetables: The Influence of Culinary Processing on Concentration Levels and Possible Impact on Health." International Journal of Molecular Sciences 26, no. 7 (2025): 3018. https://doi.org/10.3390/ijms26073018.

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Vegetables, as an important source of vitamins and minerals, are highly recommended in a healthy diet. At the same time, vegetables can contain elevated amounts of nitrates and nitrites, which are the possible nitrosating agents responsible for the formation of carcinogenic nitrosamines. In young children, they can cause methemoglobinemia. Determining the level of nitrates and nitrites, as well as the possible reduction in their concentrations during culinary processing, is especially important for the diet of young children, who are introduced to leafy vegetables during the first year. For so

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6

Lim, L. Y., and C. S. Hew. "MINERAL UPTAKE BY ROOTS OF TROPICAL ORCHIDS." HortScience 25, no. 9 (1990): 1083d—1083. http://dx.doi.org/10.21273/hortsci.25.9.1083d.

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The kinetics and efficiency of uptake of minerals (ammonium, nitrate, phosphate, potassium, calcium and magnesium) by roots of three tropical orchid genera (Aranda, Dendrobium and Oncidium) were studied and compared. Mericloned plantlets of these three orchids were cultured in solid Vacin and Went medium. The pattern of mineral uptake by orchids of these three orchid genera was similar. There was a preferential uptake of ammonia over nitrate. Rapid nitrate uptake by roots began only after 3 weeks in culture. Initial uptake of potassium, calcium and magnesium were rapid but the residual levels

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7

Li, Ming-Jun, Meng-Yun Wei, Xiao-Ting Fan, and Guo-Wei Zhou. "Underestimation about the Contribution of Nitrate Reducers to Iron Cycling Indicated by Enterobacter Strain." Molecules 27, no. 17 (2022): 5581. http://dx.doi.org/10.3390/molecules27175581.

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Nitrate-reducing iron(II) oxidation (NRFO) has been intensively reported in various bacteria. Iron(II) oxidation is found to be involved in both enzymatic and chemical reactions in nitrate-reducing Fe(II)-oxidizing microorganisms (NRFOMs). However, little is known about the relative contribution of biotic and abiotic reactions to iron(II) oxidation for the common nitrate reducers during the NRFO process. In this study, the typical nitrate reducers, four Enterobacter strains E. hormaechei, E. tabaci, E. mori and E. asburiae, were utilized as the model microorganisms. The comparison of the kinet

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8

Kodirov, Bekzod, Khamidulla Mamatov, Abdulkhamid Yusupov, Shoirjon Kuziboev, and Mukhammadazim Rustamov. "Ammonium nitrate with improved properties for agricultural crops." BIO Web of Conferences 173 (2025): 03028. https://doi.org/10.1051/bioconf/202517303028.

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This article presents the results of research aimed at developing enhanced mineral fertilizers based on ammonium nitrate. The main objective was to improve the quality and strength of fertilizer granules by adding local unconventional natural minerals and technogenic wastes to ammonium nitrate. During the research, bentonite and glauconite powders, along with lime-quenching residues, were introduced into the ammonium nitrate solution to identify optimal formulations and proportions. The experiments demonstrated that granules produced with the new additives significantly surpassed conventional

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9

P., K. TARAFDER. "A Rapid Ultraviolet Spectrophotometric Method for Simultaneous Determination of Nitrate and Nitrite in Potable Waters." Journal of Indian Chemical Society Vol. 67, Nov 1990 (1990): 936–38. https://doi.org/10.5281/zenodo.6278533.

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Regional Centre for Exploration and Research, Atomic Minerals Division, Department of Atomic Energy, Shillong-793 011 <em>Manuscript received 21 December 1989, revised 26 July 1990, accepted. 24 September 1990</em> A Rapid Ultraviolet Spectrophotometric Method for Simultaneous Determination of Nitrate and Nitrite in Potable Waters

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10

Erokhin, Yuriy V., and Vera V. Khiller. "Gerhardtite and Likasite from Rodingites of Bazhenovsk Ophiolite Complex (Middle Urals)." UNIVERSITY NEWS. NORTH-CAUCASIAN REGION. NATURAL SCIENCES SERIES, no. 4-2 (216-2) (January 18, 2023): 13–20. http://dx.doi.org/10.18522/1026-2237-2022-4-2-13-20.

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The results of studying nitrate mineralization in rodingites of the Bazhenovsk ophiolite complex located on the eastern slope of the Middle Urals are presented. Rodingites are metasomatic rocks of garnet-pyroxene composition that replace gabbroid and diorite dikes that cut across the Bazhenovsk ultramafic massif. Some apogabber and apodiorite rodingites have in turn been altered by hydrothermal fluids, probably generated by an underlying granite intrusion. Chalcocite is the main sulfide mineral in hydrothermally altered rodingites. It forms clusters of irregular shape, up to 1 cm in size. Visu

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11

Shelobolina, Evgenya S., Hiromi Konishi, Huifang Xu, and Eric E. Roden. "U(VI) Sequestration in Hydroxyapatite Produced by Microbial Glycerol 3-Phosphate Metabolism." Applied and Environmental Microbiology 75, no. 18 (2009): 5773–78. http://dx.doi.org/10.1128/aem.00628-09.

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ABSTRACT Previous studies have demonstrated the potential for removal of U(VI) from solution via precipitation of U(VI)-bearing calcium-phosphate (Ca-P) minerals coupled to microbial hydrolysis of glycerol phosphate compounds. We evaluated this process in circumneutral-pH groundwater from Area 2 of the U.S. Department of Energy Field Research Center at Oak Ridge National Laboratory. Area 2 groundwater contains high concentrations of dissolved calcium (ca. 4 mM), and thus, release of phosphate during glycerol phosphate metabolism has the potential to create conditions favorable for U(VI) seques

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Jiménez-Veuthey, Mariana1 2* Zapata Luz Marina1 Vezzosi-Zoto Gina1 Sacks Natalia1 Flores Agustina1 Zampedri Patricia1 and Zampedri Carolina1. "Effects of Irradiance and Different Nitrogen and Carbon Concentrations on the Minerals Accumulation in Scenedesmus obliquus Biomass." Journal of Biomedical Research & Environmental Sciences 1, no. 2 (2020): 011–20. https://doi.org/10.37871/jels1114.

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Microalgae are capable of absorbing and concentrating constituent elements that have a wide variety of applications in agriculture, food industry, and medicine. Microalgae chemical composition change according to internal and external factors. In this study, the effect of irradiance, sodium nitrate and sodium acetate concentration on the accumulation of essential minerals in Scenedesmus obliquus biomass were evaluated using 23 factorial screening designs. The simultaneous effect of the three experimental factors was studied using three levels for each parameter (irradiance: 36.71, 69.50, 102.3

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13

Lu, Yongsheng, Hui Liu, Xueer Huang, et al. "Nitrate removal during Fe(III) bio-reduction in microbial-mediated iron redox cycling systems." Water Science and Technology 84, no. 4 (2021): 985–94. http://dx.doi.org/10.2166/wst.2021.280.

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Abstract Fe(III) bio-reduction provides a prospect of applying the iron redox cycle to nitrate remediation in the aquatic environment. The objective of this study was to realize multiple nitrate removals in the system containing Shewanella oneidensis MR-1 (S. oneidensis MR-1) and ferrihydrite or magnetite. The results showed that with three periods of 30 mg·L−1 NO3−-N addition, all nitrate reduction was completed within 170 h. In the first period (0–30 h) of nitrate addition, the main contribution of nitrate removal was due to the biological reduction process by S. oneidensis MR-1, accompanied

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14

Hoffmann, Józef, Maciej Kaniewski, Dominik Nieweś, and Krystyna Hoffmann. "Selected magnesium compounds as possible inhibitors of ammonium nitrate decomposition." Polish Journal of Chemical Technology 22, no. 2 (2020): 1–8. http://dx.doi.org/10.2478/pjct-2020-0011.

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AbstractAmmonium nitrate (AN) is considered to be a very hazardous and difficult to handle component of mineral fertilizers. Differential thermal analysis coupled with thermogravimetry and mass spectrometry was used to determine the possible inhibiting effect of selected magnesium compounds on thermal decomposition of AN. Each additive was mixed with AN to create samples with AN:magnesium compound mass ratios of 4:1, 9:1 and 49:1. Most of analyzed compounds enhanced thermal stability of ammonium nitrate, increasing the temperature of the beginning of exothermic decomposition and decreasing the

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15

ALEKSANDRA, GOVEDARICA-LUČIĆ, PERKOVIĆ GORAN, and VASKOVIĆ JELENA. "THE INFLUENCE OF THE METHOD OF PRODUCTION ON THE CONTENT OF MINERAL SUBSTANCES AND NITRATES IN LETTUCE." Contemporary Agriculture (2013) 62, no. 3-4 (2013): 177–86. https://doi.org/10.5281/zenodo.7257034.

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The lettuce is a very good and inexpensive source of minerals (N, P, K), but in the winter it is prone to accumulation of toxic substances (nitrates). The main goal of our research is to examine the impact of new technologies of production (land cover) on the quality of lettuce produced in the winter. Mineral content varied depending on the mode of production. The values of nitrogen content in lettuce tend to rise from bare ground (2.89-4.58%) to covered (3.09-4.85%) soil. The type of material that covers the land also has an impact on the content of potassium. The applied versions of the cove

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16

Yildizbakan, Lemiha, Neelam Iqbal, Peter V. Giannoudis, and Animesh Jha. "Synthesis of Chitosan and Ferric-Ion (Fe3+)-Doped Brushite Mineral Cancellous Bone Scaffolds." Biomimetics 9, no. 6 (2024): 308. http://dx.doi.org/10.3390/biomimetics9060308.

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Biodegradable scaffolds are needed to repair bone defects. To promote the resorption of scaffolds, a large surface area is required to encourage neo-osteogenesis. Herein, we describe the synthesis and freeze-drying methodologies of ferric-ion (Fe3+) doped Dicalcium Phosphate Dihydrate mineral (DCPD), also known as brushite, which has been known to favour the in situ condition for osteogenesis. In this investigation, the role of chitosan during the synthesis of DCPD was explored to enhance the antimicrobial, scaffold pore distribution, and mechanical properties post freeze-drying. During the sy

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17

McBeth, J. M., J. R. Lloyd, G. T. W. Law, F. R. Livens, I. T. Burke, and K. Morris. "Redox interactions of technetium with iron-bearing minerals." Mineralogical Magazine 75, no. 4 (2011): 2419–30. http://dx.doi.org/10.1180/minmag.2011.075.4.2419.

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AbstractIron minerals influence the environmental redox behaviour and mobility of metals including the long-lived radionuclide technetium. Technetium is highly mobile in its oxidized form pertechnetate (Tc(VII)O4–), however, when it is reduced to Tc(IV) it immobilizes readily via precipitation or sorption. In low concentration tracer experiments, and in higher concentration XAS experiments, pertechnetate was added to samples of biogenic and abiotically synthesized Fe(II)-bearing minerals (bio-magnetite, bio-vivianite, bio-siderite and an abiotically precipitated Fe(II) gel). Each mineral scave

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18

Ali, Shahad, and Ali J. Jaeel. "Nitrate adsorption by fired clay in fixed bed column." Wasit Journal of Engineering Sciences 10, no. 3 (2022): 122–33. http://dx.doi.org/10.31185/ejuow.vol10.iss3.356.

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Excessive use of nitrogen fertilizers has increased nitrate concentrations in groundwater, which poses a health hazard from nitrate-contaminated drinking water and contributes to eutrophication. Nitrate removal from water systems has been carefully studied; However, new, low-cost solutions are urgently needed. Clay and terracotta minerals are commonly used in environmental applications due to their non-toxicity, global availability, low cost, and physical and chemical properties (ion-exchange capacity, high surface area, high adsorption, and catalytic properties). Although most are used to red

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19

Alshaaer, Mazen, Juma’a Al-Kafawein, Ahmed S. Afify, Nagat Hamad, Ghassan Saffarini, and Khalil Issa. "Effect of Ca2+ Replacement with Cu2+ Ions in Brushite on the Phase Composition and Crystal Structure." Minerals 11, no. 10 (2021): 1028. http://dx.doi.org/10.3390/min11101028.

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The gradual replacement of Ca2+ with Cu2+ ions in brushite (CaHPO4·2H2O) has been extensively studied and discussed. The approach adopted in this work has not been systematically explored in previous studies. This novel approach may prove beneficial for the production of Ca1−xCuxHPO4·nH2O materials with desired properties suitable for medical applications. Solutions of sodium dihydrogen orthophosphate dihydrate, NaH2PO4·2H2O, calcium nitrate tetrahydrate, Ca(NO3)2·4H2O, copper nitrate trihydrate, Cu(NO3)2·3H2O, ammonium hydroxide solution, and diluted HCl were used for the preparation of these

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20

Hernández, Pía, Giovanni Gahona, Monserrat Martínez, Norman Toro, and Jonathan Castillo. "Caliche and Seawater, Sources of Nitrate and Chloride Ions to Chalcopyrite Leaching in Acid Media." Metals 10, no. 4 (2020): 551. http://dx.doi.org/10.3390/met10040551.

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Hydrometallurgical processing of chalcopyrite is of great interest today due to the depletion of oxidized copper minerals. This will also enable existing plants to continue operation. The objective of this work is to study the behavior of chalcopyrite leaching by stirring in an acid-nitrate-chloride media where seawater and brines provide chloride ions and nitrate ions can be provided from the caliche industry. The variables studied were sulfuric acid, nitrate and chloride concentration, source of water (dissolvent), temperature, solid/liquid ratio, particle size, mineral sample, and pretreatm

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21

Chamrar, Abdelkarim, Mostafa Oujidi, Abdelilah El Haddar, Mourad Arabi, Abdelhakim Jilali, and Mouad El Khoudri. "Hydrogeochemical processes and nitrate contamination of shallow groundwater in the Gareb-Bouareg region, northeastern Morocco." E3S Web of Conferences 527 (2024): 01006. http://dx.doi.org/10.1051/e3sconf/202452701006.

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In semiarid regions, groundwater faces considerable challenges due to both natural and human-induced contaminants, including nitrate contamination. These issues impact the availability of groundwater, a vital resource. Therefore, it is crucial to identify the sources and mechanisms contributing to salinization and nitrate contamination. In this study, we examined the hydrogeochemical characteristics of shallow groundwater in the Gareb-Bouareg region, northeast Morocco. The aim was to determine and understand the key processes that govern its chemical composition and assess nitrate contaminatio

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22

Ruamrungsri, Soraya, Choncharoen Sawangrat, Kanokwan Panjama, et al. "Effects of Using Plasma-Activated Water as a Nitrate Source on the Growth and Nutritional Quality of Hydroponically Grown Green Oak Lettuces." Horticulturae 9, no. 2 (2023): 248. http://dx.doi.org/10.3390/horticulturae9020248.

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Nitrate is a major source of the inorganic nitrogen taken up by the roots of plants. Nitrate sources are generally derived from inorganic minerals by an energy-consuming chemical process; as a result, the price of chemical fertilizers is gradually increasing year by year. NO3-N, generated from N2 using the plasma technique, is an alternative method of producing nitrate from the air. Therefore, in this research, we aimed to determine the efficiency of generating NO3-N using plasma-activated water (PAW) to replace nitrates from chemical fertilizer in a nutrient solution. Green oak lettuce (Lactu

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23

Sullivan, R. C., M. J. K. Moore, M. D. Petters, S. M. Kreidenweis, G. C. Roberts, and K. A. Prather. "Effect of chemical mixing state on the hygroscopicity and cloud nucleation properties of calcium mineral dust particles." Atmospheric Chemistry and Physics Discussions 9, no. 1 (2009): 2609–44. http://dx.doi.org/10.5194/acpd-9-2609-2009.

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Abstract. Atmospheric mineral dust particles can alter cloud properties and thus climate by acting as cloud condensation nuclei (CCN) that form cloud droplets. The CCN activation properties of various calcium mineral dust particles were studied experimentally to investigate the consequences of field observations showing the segregation of sulfate from nitrate and chloride between individual aged Asian dust particles, and the enrichment of oxalic acid in Asian dust. Each mineral's observed apparent hygroscopicity was primarily controlled by its solubility, which determines the degree to which t

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Sullivan, R. C., M. J. K. Moore, M. D. Petters, S. M. Kreidenweis, G. C. Roberts, and K. A. Prather. "Effect of chemical mixing state on the hygroscopicity and cloud nucleation properties of calcium mineral dust particles." Atmospheric Chemistry and Physics 9, no. 10 (2009): 3303–16. http://dx.doi.org/10.5194/acp-9-3303-2009.

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Abstract. Atmospheric mineral dust particles can alter cloud properties and thus climate by acting as cloud condensation nuclei (CCN) that form cloud droplets. The CCN activation properties of various calcium mineral dust particles were studied experimentally to investigate the consequences of field observations showing the segregation of sulphate from nitrate and chloride between individual aged Asian dust particles, and the enrichment of oxalic acid in Asian dust. Each mineral's observed apparent hygroscopicity was primarily controlled by its solubility, which determines the degree to which

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25

Ernstsen, Vibeke. "Reduction of Nitrate By Fe2+ in Clay Minerals." Clays and Clay Minerals 44, no. 5 (1996): 599–608. http://dx.doi.org/10.1346/ccmn.1996.0440503.

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Takhirova, Nargisa. "Preparation of lime-sulphur containing ammonium nitrate." E3S Web of Conferences 548 (2024): 05010. http://dx.doi.org/10.1051/e3sconf/202454805010.

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The article presents the processes of obtaining magnesium (lime ammonium nitrate) LAN based on the granulation of dolomite-sulfatenitrate liquids obtained by adding DM and (NH4)2SO4 to AN liquid, as well as studying the composition and physico-chemical properties of ready-made fertilizers. It was found that, based on the determination of the physical and mechanical properties of various mine dolomite minerals, their suitability for use as a modifier for saltpetre was proven. The addition of dolomite mineral from 100:3 to 100:45 weight ratio and (NH4)2SO4 in the amount of 3 to 10% of the total

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Golomb, Avinoam, and Eliezer E. Goldschmidt. "Mineral Nutrient Balance and Impairment of the Nitrate-reducing System in Alternate-bearing ‘Wilking’ Mandarin Trees." Journal of the American Society for Horticultural Science 112, no. 2 (1987): 397–401. http://dx.doi.org/10.21273/jashs.112.2.397.

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Abstract Two alternate-bearing ‘Wilking’ mandarin (Citrus reticulata Blanco) trees, an “on” and an “off” tree, were uprooted and dissected into 11 organ types during the time of fruit maturation (February). Total or water-soluble N, P, K, Ca, and Mg (nitrate for soluble N) content were determined for each organ. Calcium was separated further into water-soluble, exchangeable, insoluble, and oxalate fractions. Leaves and twigs of on trees had reduced N, P, and particularly K levels. Organs of on trees, including minor roots and fruit, contained increased nitrate levels. Leaves, twigs, and minor

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Beller, Harry R. "Anaerobic, Nitrate-Dependent Oxidation of U(IV) Oxide Minerals by the Chemolithoautotrophic Bacterium Thiobacillus denitrificans." Applied and Environmental Microbiology 71, no. 4 (2005): 2170–74. http://dx.doi.org/10.1128/aem.71.4.2170-2174.2005.

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ABSTRACT Under anaerobic conditions and at circumneutral pH, cells of the widely distributed, obligate chemolithoautotrophic bacterium Thiobacillus denitrificans oxidatively dissolved synthetic and biogenic U(IV) oxides (uraninite) in nitrate-dependent fashion: U(IV) oxidation required the presence of nitrate and was strongly correlated with nitrate consumption. This is the first report of anaerobic U(IV) oxidation by an autotrophic bacterium.

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Campisi, Laura Donatella. "Mass dependent processes can generate an isotope anomaly: the effect of ordinary diffusion on Δ17O in solids". Environmental Chemistry 13, № 5 (2016): 784. http://dx.doi.org/10.1071/en15170.

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Environmental contextThe nitrate oxygen isotope anomaly has been suggested as a tool for quantifying the atmospheric input of this essential nutrient to terrestrial environments. However, it is calculated that the most important transport process in minerals, diffusion, may also be responsible for measurable anomalies. The signal in Chilean nitrate minerals could be associated with diffusion during crystal growth so the belief that the nitrate is entirely of atmospheric origin is therefore questioned. AbstractCalculated diffusion profiles assuming the classical mass dependence of diffusion coe

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Keutgen, Norbert, Michael Hausknecht, Magda Tomaszewska-Sowa, and Anna Jadwiga Keutgen. "Nutritional and Sensory Quality of Two Types of Cress Microgreens Depending on the Mineral Nutrition." Agronomy 11, no. 6 (2021): 1110. http://dx.doi.org/10.3390/agronomy11061110.

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The present study addressed the combination of nutritional and sensory quality assessment of radish and garden cress as microgreens cultivated in different amounts of mineral nutrients under conditions that can be realized in a private household. The content of value adding compounds was determined by means of chemical analyses. Total flavor impression and visual appearance were rated by untrained consumer tests. In cotyledons of radish cress (Raphanus sativus L.), carotenoid, total phenols, nitrate contents, and antioxidant capacity decreased significantly with decreasing mineral content in t

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Vijay, K. Bharti. "Evaluation of Physico-Chemical Parameters and Minerals Status of Different Water Sources at High Altitude." Annals of Environmental Science and Toxicology 2, no. 1 (2017): 010–18. https://doi.org/10.17352/pjest.000007.

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Physico-chemical properties and minerals status is an important decisive factor for assessment of drinking water quality. There are limited literatures on this aspect for drinking water quality of high altitude areas; therefore, the present investigation was carried out to evaluate different physico-chemical parameters and some essential minerals status in different drinking water sources. These water samples were collected from different sources like deep tube well, spring, and river from different villages of Leh District, Jammu & Kashmir, India. Thereafter, it was analyzed for physico-c

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Wang, Zhen, Yuyu Wan, Zhe Ma, Luwen Xu, Yuanzheng Zhai, and Xiaosi Su. "Impact of Iron Minerals on Nitrate Reduction in the Lake–Groundwater Interaction Zone of High-Salinity Environment." Water 17, no. 9 (2025): 1241. https://doi.org/10.3390/w17091241.

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Nitrate is the most prevalent inorganic pollutant in aquatic environments, posing a significant threat to human health and the ecological environment, especially in lakes and groundwater, which are located in the high agricultural activity intensity areas. In order to reveal the sources of nitrogen pollution in lakes and groundwater, this study of the transformation mechanism of nitrogen in the interaction zone between lakes and groundwater has become an important foundation for pollution prevention and control. The coupling effect between the biogeochemical processes of nitrate and iron has b

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Sokić, Miroslav, Slobodan Radosavljević, Branislav Marković, et al. "Influence of chalcopyrite structure on their leaching by sodium nitrate in sulphuric acid." Metallurgical and Materials Engineering 20, no. 1 (2014): 53–60. http://dx.doi.org/10.5937/metmateng1401053s.

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During the chalcopyrite leaching by sodium nitrate and sulfuric acid solution, leaching rate decreases with increasing the time and a part of chalcopyrite mineral grains remains in the leach residue. In chalcopyrite concentrate, 95.5 % of chalcopyrite mineral occurs as in liberated grains, and the rest is in association with gangue minerals, which is very favorably from the aspect of hydrometallurgical treatment. Complex forms, like impregnations and complex intergrowths, do not exist. After experiments carried out, leaching of copper achieved 84 % at temperature 80 o C and time 240 min. In th

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Borges, Boniek, Mariana Vale, Felipe Afonso, and Isauremi Assunção. "Can Enhanced Peroxides Decrease the Side Effects of Tooth Bleaching? A Systematic Review of the Literature." International Journal of Experimental Dental Science 3, no. 2 (2014): 84–91. http://dx.doi.org/10.5005/jp-journals-10029-1077.

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ABSTRACT Adverse effects of tooth bleaching on dental structures remain a topic of discussion in the literature, and the search for protocols that reduce such reported adverse effects is ongoing. The goal of this systematic literature review was to determine whether the use of tooth bleaching gels with added minerals, such as fluoride, calcium, hydroxyapatite, potassium nitrate, amorphous calcium phosphate, and casein phosphopeptide-amorphous calcium phosphate, reduced the occurrence of the main adverse effects of tooth bleaching. The electronic database search identified 16 studies that evalu

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Xi, Yunfei, Megharaj Mallavarapu, and Ravendra Naidu. "Preparation, characterization of surfactants modified clay minerals and nitrate adsorption." Applied Clay Science 48, no. 1-2 (2010): 92–96. http://dx.doi.org/10.1016/j.clay.2009.11.047.

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Margalef-Marti, Rosanna, Raúl Carrey, José Antonio Benito, Vicenç Marti, Albert Soler, and Neus Otero. "Nitrate and nitrite reduction by ferrous iron minerals in polluted groundwater: Isotopic characterization of batch experiments." Chemical Geology 548 (August 2020): 119691. http://dx.doi.org/10.1016/j.chemgeo.2020.119691.

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Lopez-Adams, Rebeca, Simon M. Fairclough, Ian C. Lyon, et al. "Elucidating heterogeneous iron biomineralization patterns in a denitrifying As(iii)-oxidizing bacterium: implications for arsenic immobilization." Environmental Science: Nano 9, no. 3 (2022): 1076–90. http://dx.doi.org/10.1039/d1en00905b.

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Anaerobic nitrate-dependent iron(ii) oxidation is a process common to many bacterial species, which promotes the formation of Fe(iii) minerals that can influence the fate of soil and groundwater pollutants, such as arsenic.

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Bozokalfa, Kadri, Bülent Yağmur, Dursun Eşiyok, and Aşçioğul Kaygisiz. "Genetic variability and association pattern among quantitative nutritional traits in Swiss chard (Beta vulgaris subsp. L. var. cicla) accessions and its implication for breeding." Genetika 46, no. 2 (2014): 505–14. http://dx.doi.org/10.2298/gensr1402505b.

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In addition to improving agronomic traits, enriched cultivar such as nutritional elements and health promoting compounds are new demands for today's and the future's perspectives of crop breeding. In this respect, among leafy vegetables Swiss chard is a good source of nutritional elements and supplies large amounts of health promoting compounds. The existing knowledge of genetic variability for mineral composition both at the phenotype and genotype level, heritability of characters and also relationships among investigated minerals is fundamental for variety selection in Swiss chard. This also

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Rodrigues, Donizetti Tomaz, Roberto Ferreira Novais, Víctor Hugo Alvarez V., José Maria Moreira Dias, and Ecila Mercês de Albuquerque Villani. "Orchid growth and nutrition in response to mineral and organic fertilizers." Revista Brasileira de Ciência do Solo 34, no. 5 (2010): 1609–16. http://dx.doi.org/10.1590/s0100-06832010000500014.

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Orchid fertilization is fundamental for a satisfactory plant growth and development for commercial orchid production as well as in collections. Mineral and/or organic sources can be used for fertilization. The objective of this study was to evaluate the effect of the use of organic and/or mineral fertilizers on the nutrition and growth of orchid (Laelia purpurata 'werkhanserii' x L. lobata 'Jeni') seedlings in greenhouse. The following fertilizers were tested: an NPK fertilizer + micronutrients; a Ca source in the form of calcium nitrate; two organic fertilizers, one prepared with a mixture of

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Petukhov, O. F., I. U. Khalimov, V. P. Istomin, and N. М. Karimov. "The effect of clay minerals on in-situ leaching of uranium." Gornye nauki i tekhnologii = Mining Science and Technology (Russia) 8, no. 1 (2023): 39–46. http://dx.doi.org/10.17073/2500-0632-2022-10-20.

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In recent years, with the development of techniques and methods for in-situ leaching (ISL), additional uranium extraction from previously worked-out blocks is becoming not only relevant, but also quite achievable. In this case, the extraction of residual uranium reserves from previously worked-out blocks does not require additional costs for the necessary infrastructure. One of the most important factors in the formation of residual uranium reserves in worked-out blocks is the presence of clay minerals in the ore horizon. In this regard, we conducted a number of studies on the adverse and posi

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Majkowska-Gadomska, Joanna, Krzysztof Jadwisieńczak, Anna Francke, and Zdzisław Kaliniewicz. "Effect of Biostimulants on the Yield and Quality of Selected Herbs." Applied Sciences 12, no. 3 (2022): 1500. http://dx.doi.org/10.3390/app12031500.

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The aim of this study was to determine the effect of amino acid biopreparations on the yield of summer savory, marjoram, and lemon balm, and the concentrations of selected biochemical and mineral compounds in their herbage. The first experimental factor was plant species: summer savory (Satureja hortensis L.) var. Saturn, marjoram (Origanum majorana L.) var. Miraż, and lemon balm (Melissa officinalis L.). The second experimental factor was the effect exerted by two biopreparations, Calleaf Aminovital and Maximus Amino Protect, on herbage yield and quality. In the control treatment, plants were

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Ernstsen, Vibeke, and Steen Mørup. "Nitrate reduction in clayey till by Fe(II) in clay minerals." Hyperfine Interactions 70, no. 1-4 (1992): 1001–4. http://dx.doi.org/10.1007/bf02397497.

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Hansen, H. C. B., and C. Bender Koch. "Reduction of nitrate to ammonium by sulphate green rust: activation energy and reaction mechanism." Clay Minerals 33, no. 1 (1998): 87–101. http://dx.doi.org/10.1180/000985598545453.

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AbstractIron(II)-containing minerals are potential inorganic nitrate reductants in soils and sediments. Specifically, synthetic green rust (Fe4IIFeIII2(OH)12SO4.yH2O, GR) reduces nitrate to ammonium. The reaction of GR with two different nitrate salts, NaNO3 and Ba(NO3)2, has been compared. The reaction stoichiometry and the reaction order with respect to Fe(II) in GR does not change in the examined temperature range (15-50°C) irrespective of the nitrate salt used. Activation energies of 83.9±7.6 kJ mol-1 and 90.5±6.9 kJ mol-1 have been determined for the reaction of GR with NaNO3 and Ba(NO3)2

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Piršelová, Beáta, and Emília Ondrušková. "Effect of Cadmium Chloride and Cadmium Nitrate on Growth and Mineral Nutrient Content in the Root of Fava Bean (Vicia faba L.)." Plants 10, no. 5 (2021): 1007. http://dx.doi.org/10.3390/plants10051007.

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The present study aimed to analyze the differences in the tolerance of fava bean (Vicia faba cv. Aštar) roots to cadmium in nitrate—Cd(NO3)2—and chloride—CdCl2—solutions. The physiological and biochemical parameters were assessed. The tested doses of Cd (50, 100, 150 and 300 mg/L) did not influence the germination of seeds. However, considerable growth inhibition and dehydration were observed after 96 h incubation. The thickness of roots and rupture of cell membranes increased along with the increasing concentration of the metal in the solution. At a Cd dose of 300 mg/L, irrespective of the so

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Hamid, Manhal Gobara, and Abdel Azim Ahmed Mohamed Nour. "Effect of different drying methods on quality attributes of beetroot (Beta vulgaris) slices." World Journal of Science, Technology and Sustainable Development 15, no. 3 (2018): 287–98. http://dx.doi.org/10.1108/wjstsd-11-2017-0043.

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PurposeThe purpose of this paper is to evaluate the effect of different drying methods on quality attributes of beetroot slices.Design/methodology/approachThree drying methods (sun, oven and freeze-drying) were applied to dry fresh slices of beetroot cultivar (Beta vulgaris). The chemical composition, minerals, nitrate, betalains, total phenolic, total flavonoid and color were measured for fresh and dried slices.FindingsThe chemical composition, minerals, nitrate, bioactive compounds and color were measured for fresh and dried slices. Regardless of the drying method, the results showed that th

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Luo, Yunbo, and Faming Zhang. "A Novel Process of Tungsten Flotation for Sustainable Exploitation of Tungsten Resources." Chiang Mai Journal of Science 50, no. 5 (2023): 1–12. http://dx.doi.org/10.12982/cmjs.2023.056.

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Tungsten as key metal in various fields is indispensable metal resource for global economy. Sustainable exploitation of tungsten resources is still challenging. This work makes attempt to solve the difficulty in flotation separation of tungsten minerals from Yaogangxian tungsten ore. Systematical analysis of mineralogical properties of tungsten ore was performed. A process for tungsten flotation from tungsten ore was developed for exploitation of tungsten resources. The major valuable element in the ore is tungsten, and the grade of tungsten is 0.22%. The distribution of scheelite is nonunifor

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Arges, Christopher G., and Hui Xu. "Electrochemical Separations for Sustainability." Electrochemical Society Interface 33, no. 1 (2024): 41. http://dx.doi.org/10.1149/2.f07241if.

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This special issue of Interface comprises three articles that articulate the importance of electrochemical separations for sustainability. The articles emphasize electrochemical separations for industrial applications, such as gas purification (e.g., CO2 concentration, hydrogen purification, and ammonia compression), critical minerals refining, and nutrient and organic acid recovery. Electrochemical separations are a powerful tool for securing critical minerals and materials for the growing electrification of energy production and transmission while being more environmentally friendly (e.g., u

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Sudadi, Untung, Syaiful Anwar, Rendy Anggriawan, and Tengku Afrizal. "INDONESIAN NANOCLAYS FOR THE REMOVAL OF NITRATE IN LIQUID WASTE CONTAINING PALM OIL MILL EFFLUENT." JURNAL AGROTEKNOLOGI 13, no. 02 (2020): 164. http://dx.doi.org/10.19184/j-agt.v13i02.15327.

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Land application of liquid waste containing palm oil mill effluent (LW-POME) as soil ameliorant can cause water contamination due to its high content of nitrate if improperly treated. Indonesia is rich with volcanic tuff materials that contain variable charged soil clay minerals. This study was aimed at to extract nanoclays (fraction sized <200 nm) from volcanic tuffs of Mt. Salak, West Java, Indonesia, and evaluate their potential use as adsorbent of nitrate in LW-POME. By applying dispersion, ultrasonication, centrifugation, and dialysis separation techniques, it could be extracted positi

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SAPAROVA, G. D., B. KH KUCHAROV, M. S. DZHANDULLAEVA, A. U. ERKAEV, and B. S. ZAKIROV. "NITRIC ACID PROCESSING OF SERPENTENITES FROM THE KARAKALPAK DEPOSIT." Chemistry for Sustainable Development 32, no. 1 (2024): 82–90. http://dx.doi.org/10.15372/csd2024534.

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Physicochemical foundations for the technology of nitrogen acid processing of serpentinite from the Karakalpak deposit with the formation of pure magnesium nitrate and magnesium-containing compound fertiliser are developed. The chemical and mineralogical composition of serpentinite from the Karakalpak deposit is studied. As determined by X-ray diffraction analysis, microscopic and thermogravimetric studies, serpentinite sample contains clinoenstatite, pyrope, spinel, magnetites and other minerals with various crystal structures. Data on the extraction of serpentinite components in nitric acid

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Sokic, Miroslav, Jovica Stojanovic, Branislav Markovic, et al. "Effects of structural and textural grain characteristics on leaching of sulphide minerals from a polymetallic concentrate by sodium nitrate and sulphuric acid solution." Chemical Industry 71, no. 6 (2017): 461–69. http://dx.doi.org/10.2298/hemind161130006s.

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In this paper, the influence of structural and textural characteristics of sulfide minerals on their leaching from a polymetallic concentrate by sulfuric acid and sodium nitrate solution is presented. The starting material was Pb?Zn?Cu sulphide polymetallic concentrate enriched during the flotation of a polymetallic ore in the "Rudnik" flotation plant (Rudnik ? Serbia). Leaching experiments were carried out in a closed glass reactor, which provides stable hermetic conditions and allows heating at constant temperature. Chemical, XRD, qualitative and quantitative microscopic and SEM/EDX analyses

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