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1

Pathak, Abhivyakti, Manish Kumar Verma, and Rajat Verma Shishu Pal Singh. "Phosphorus Deficiency Phosphorous Deficiency in Animals." International Journal of Trend in Scientific Research and Development Volume-2, Issue-3 (2018): 2746–48. http://dx.doi.org/10.31142/ijtsrd12722.

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2

Taggart, Jacob B., Rebecca L. Ryan, Gustavious P. Williams, et al. "Historical Phosphorus Mass and Concentrations in Utah Lake: A Case Study with Implications for Nutrient Load Management in a Sorption-Dominated Shallow Lake." Water 16, no. 7 (2024): 933. http://dx.doi.org/10.3390/w16070933.

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Utah Lake is unusual due to its large surface area, shallow depth, phosphorus-rich sediments, and well-mixed, unstratified waters. This creates conditions where water column phosphorous concentrations tend toward equilibrium, with lake sediments containing high concentrations of geologic phosphorus. To help understand the potential impact of phosphorous load reductions, we computed a time history of phosphorus mass in the lake using state and federal records of lake volume, dissolved phosphorus concentrations, and outflow. We show that historically, Utah Lake phosphorus concentrations have rem
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3

Juneja, Ankita, Chinmay Kurambhatti, Deepak Kumar, and Vijay Singh. "Techno-Economic Evaluation of Phosphorous Recovery in Soybean Biodiesel Process." Processes 10, no. 8 (2022): 1512. http://dx.doi.org/10.3390/pr10081512.

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The over-enrichment of phosphorus in waste streams can lead to eutrophication and oxygen limitations for aquatic life. To understand the release of phosphorus from a soybean processing facility, it is imperative to track the flow of phosphorus in different streams during the processing of soybeans. The objective of the study is to develop process simulation models to study the flow of phosphorus in the soy-biodiesel process and evaluate strategies to mitigate phosphorus release by recovering phosphorous from soapstock and wastewater. Since most of the P is found in soybean meal, the processing
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4

Mao, Yilin, Rongwei Xiong, Xiufang Gao, Li Jiang, Yancong Peng, and Yan Xue. "Analysis of the Status and Improvement of Microalgal Phosphorus Removal from Municipal Wastewater." Processes 9, no. 9 (2021): 1486. http://dx.doi.org/10.3390/pr9091486.

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Phosphorus, as one of the main pollutants in municipal sewage, has received increasing attention recently. Phosphorus recovery also increases the sustainable development of municipal wastewater. Since algae have the ability to effectively redirect nutrients, including phosphorus, from municipal sewage to algae biomass, municipal sewage treatments involving microalgae have piqued the interest of many researchers. The phosphorus removal depends on the potential of the microalgae to absorb, preserve, or degrade phosphorus in municipal wastewater. It is, therefore, of great interest to study the m
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5

Haque, Shama E. "How Effective Are Existing Phosphorus Management Strategies in Mitigating Surface Water Quality Problems in the U.S.?" Sustainability 13, no. 12 (2021): 6565. http://dx.doi.org/10.3390/su13126565.

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Phosphorus is an essential component of modern agriculture. Long-term land application of phosphorous-enriched fertilizers and animal manure leads to phosphorus accumulation in soil that may become susceptible to mobilization via erosion, surface runoff and subsurface leaching. Globally, highly water-soluble phosphorus fertilizers used in agriculture have contributed to eutrophication and hypoxia in surface waters. This paper provides an overview of the literature relevant to the advances in phosphorous management strategies and surface water quality problems in the U.S. Over the past several
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6

Jonsson, Rasmus, Oana Mihai, Jungwon Woo, et al. "Gas-Phase Phosphorous Poisoning of a Pt/Ba/Al2O3 NOx Storage Catalyst." Catalysts 8, no. 4 (2018): 155. http://dx.doi.org/10.3390/catal8040155.

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The effect of phosphorous exposure on the NOx storage capacity of a Pt/Ba/Al2O3 catalyst coated on a ceramic monolith substrate has been studied. The catalyst was exposed to phosphorous by evaporating phosphoric acid in presence of H2O and O2. The NOx storage capacity was measured before and after the phosphorus exposure and a significant loss of the NOx storage capacity was detected after phosphorous exposure. The phosphorous poisoned samples were characterized by X-ray photoelectron spectroscopy (XPS), environmental scanning electron microscopy (ESEM), N2-physisorption and inductive coupled
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7

El-Behairy, U. A., S. W. Burrage, A. F. Abou-Hadid, and A. S. El-Beltagy. "THE EFFECT OF THE SOURCE OF PH-ADJUSTMENT ACIDS ON UPTAKE AND TRANSPORT OF THE IONS FOR CUCUMBER PLANTS GROWN IN NFT." HortScience 28, no. 5 (1993): 453d—453. http://dx.doi.org/10.21273/hortsci.28.5.453d.

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An experiment was conducted to investigate the effect of using nitric acid, phosphoric acid and nitric: phosphoric 3:1 to adjust the pH in NFT solution on uptake and transport of phosphorus, zinc and manganese ions on cucumber (Cucumis sativus) plants cv. Farbiola. Phosphorus concentration was increased to about 450 ppm when phosphoric acid used to adjust the pH. Increasing phosphorus concentration in NFT solution did not increase % of phosphorus in the leaves, but increased it in the roots. As a result of increasing % of phosphorus in the root. Manganese and zinc transport were increased from
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8

Nervis, Juliana Alice Lösch, Aldi Feiden, Evandro Bilha Moro, Marlon Casarini Moreno, Sidnei Klein, and Wilson Rogério Boscolo. "Apparent digestibility of pacu (Piaractus mesopotamicus) diets containing different levels of phosphorus." Semina: Ciências Agrárias 36, no. 6Supl2 (2015): 4453. http://dx.doi.org/10.5433/1679-0359.2015v36n6sup2p4453.

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The present study aimed to evaluate pacu (Piaractus mesopotamicus) diets and determine the apparent digestibility at different levels of phosphorus using the feces collection method with an intestinal dissection marker. A total of 320 pacu with average weights of 768.5±36.34 g were used, and they were distributed in four 5 m³ net cages. The fish were fed isonitrogenous (27%), isoenergetic (3000 kcal/kg) and isocalcium (1.50%) diets with total phosphorus levels of 0.6, 0.8, 1.0 and 1.2%. The fish were incised with lateral openings to allow for feces removal from the rectum, and the fish were th
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9

Kanaev, A., and A. Kaliyeva. "PRODUCTION AND USE OF PHOSPHORUS FERTILIZERS IN AGRICULTURE IN KAZAKHSTAN." POLISH JOURNAL OF SCIENCE, no. 72 (March 18, 2024): 12–16. https://doi.org/10.5281/zenodo.10835704.

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This article discusses the advantages of the production and use of phosphorus fertilizers in agriculture inKazakhstan. The production of phosphoric mineral fertilizer is closely related to the development of phosphoricand phosphoric acid technology. For the production of phosphorus fertilizers, phosphorus - containing ores areused-natural deposits of phosphorites and apatites.
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10

Abhivyakti, Pathak, Kumar Verma Manish, Verma Rajat, and Pal Singh Shishu. "Phosphorus Deficiency Phosphorous Deficiency in Animals." International Journal of Trend in Scientific Research and Development 2, no. 3 (2018): 2746–48. https://doi.org/10.31142/ijtsrd12722.

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Phosphorus deficiency is a condition, in which Phosphorus is insufficient or is not utilized properly. Phosphorus is a mineral that is vitally important to the normal metabolism of numerous compounds and in solution an acid that, with sulphur, must be neutralized by the base forming ions of sodium, potassium, calcium, and magnesium. About 70 of retained Phosphorus combines with calcium in bone and tooth structure. Phosphorus is the principal element in the structure of the nucleus and cytoplasm of all tissue cells. It is also a universally distributed component of skeletal, nerve, and muscle t
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11

Nervis, Juliana Alice Lösch, Aldi Feiden, Evandro Bilha Moro, Marlon Casarini Moreno, Sidnei Klein, and Wilson Rogério Boscolo. "Apparent digestibility of pacu (Piaractus mesopotamicus) diets containing different levels of phosphorus." Semina: Ciências Agrárias 36, no. 6Supl2 (2015): 4453. http://dx.doi.org/10.5433/1679-0359.2015v36n6supl2p4453.

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<p>The present study aimed to evaluate pacu (<em>Piaractus mesopotamicus</em>) diets and determine the apparent digestibility at different levels of phosphorus using the feces collection method with an intestinal dissection marker. A total of 320 pacu with average weights of 768.5±36.34 g were used, and they were distributed in four 5 m³ net cages. The fish were fed isonitrogenous (27%), isoenergetic (3000 kcal/kg) and isocalcium (1.50%) diets with total phosphorus levels of 0.6, 0.8, 1.0 and 1.2%. The fish were incised with lateral openings to allow for feces removal from th
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12

Tang, Zhi Ru, Yue Wen, and Qi Zhou. "Research on the Phosphorus Removal Mechanisms and Approaches in Various Horizontal Subsurface Flow Constructed Wetlands." Advanced Materials Research 573-574 (October 2012): 599–604. http://dx.doi.org/10.4028/www.scientific.net/amr.573-574.599.

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This research studied that performances and mechanisms of phosphorus removal in three types of HSFCW: reed/gravel bed system (W1), multiple plants/gravel bed system (W2) and reed/multiple substrates bed system (W3). Spatial distribution and fractionation analysis of phosphorous in different substrates showed that the accumulated phosphorous in gravel, zeolite and steel slag were mainly in forms of Ca/Mg-P, residual-P and Fe/Al-P respectively. Biomass and phosphorus contained in plants harvested in early autumn was obviously higher than that contained in plants of late autumn, so the optimal ha
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13

Sauder, Lee, and Skip Williams. "The management and exploitation of phosphorus in bloomery iron." Historical Metallurgy 55, no. 1 (2024): 3–16. https://doi.org/10.54841/hm.669.

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Phosphorus was a very common alloying element in ancient iron. Though phosphoric iron has been increasingly studied by archaeometallurgists in recent decades, little work has been published on how preindustrial smelters and smiths may have controlled and utilized phosphorus in their iron. This paper briefly summarizes our experience in controlling the phosphorus content of bloom iron. Part one deals with controlling phosphorus levels through various smelting parameters, including the speed, temperature, and length of the smelt, the proper management of slag, and the addition of calcium. Part t
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14

Kavitha, M., T. N. V. K. V. Prasad, T. Giridhara Krishna, G. Prabhakara Reddy, B. Ravindra Reddy, and M. V. S. Naidu. "Influence of Biochar Based Nano-phosphorus on Phosphorus Uptake and Yield Performance of Groundnut (Arachis hypogaea L.) Grown in Sandy Loam Soils." International Journal of Bio-resource and Stress Management 16, Jan, 1 (2025): 01–09. https://doi.org/10.23910/1.2025.5851.

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An experiment was conducted during 2020 and 2021 at S.V. Agricultural college, Tirupati to improve phosphorus availability by application of biochar-based nano-phosphorus fertilizer in order to improve the phosphorus uptake and groundnut productivity in sustainable manner. Nanoscale phosphorus particles were prepared by the biological method by using Stevia leaf extract as reducing and stabilizing agent. Surface modification of biochar was done through acid wash and gum acacia was used as a binding agent for loading of nano-phosphorous particles and the techniques such as, UV-VIS spectroscopy,
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15

Gal, Nancy J., Lauren Headrick, Kate Bennett, and Wendy J. Dahl. "Chronic Kidney Disease: Phosphorus and Your Diet." EDIS 2016, no. 1 (2016): 4. http://dx.doi.org/10.32473/edis-fs273-2015.

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Phosphorous is an essential mineral necessary for the formation of bones and teeth, but also for kidney function and the regulation of muscle contractions, heartbeat, and nerve transmission. High blood levels of phosphorus may lead to adverse effects on bone, kidney, and heart health. When there is too much phosphorus in the blood, the body reacts by leaching calcium from the bones. This can be especially dangerous for those with Chronic Kidney Disease. This 4-page fact sheet discusses the relationship between Chronic Kidney Disease and Phosphorous intake, examining foods that are high in phos
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16

Pokrovskiy, Valeriy A. "Temperature-Programmed Desorption Mass Spectrometry (TPDMS) of Dispersed Oxides." Adsorption Science & Technology 14, no. 5 (1996): 301–17. http://dx.doi.org/10.1177/026361749601400505.

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Temperature-programmed desorption mass spectrometry (TPDMS) is discussed with reference to studies of modified pyrogenic oxides. Simple theoretical models are presented in order to allow an approximate analytical treatment of TPDMS data. The ‘unimolecular’ decomposition of alkoxide groups was studied. The rate constants of the reactions were derived from TPDMS measurements. The kinetics of thermal transformations of phosphorous and phosphoric acids on a pyrogenic silica surface were investigated by TPDMS. Oxidation–reduction reactions in samples containing phosphorous acid resulted in the remo
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17

Tang, An, Tao Ma, Liduo Gu, et al. "Luminescence properties of novel red-emitting phosphor InNb1-xPxO4:Eu3+ for white light emitting-diodes." Materials Science-Poland 33, no. 2 (2015): 331–34. http://dx.doi.org/10.1515/msp-2015-0050.

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AbstractInNb1-xPxO4:Eu3+ red phosphors were synthesized by solid-state reaction and their luminescence properties were also studied through photoluminescence spectra. The excitation and emission spectra make it clear that the as-prepared phosphors can be effectively excited by near-ultraviolet (UV) 394 nm light and blue 466 nm light to emit strong red light located at 612 nm, due to the Eu3+ transition of 5D0 → 7F2. The luminescence intensity is dependent on phosphorus content, and it achieves the maximum at x = 0.4. Excessive phosphorus in the phosphors can result in reduction of luminescence
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18

Smagula, John M., and M. Susan Erich. "LOWBUSH BLUEBERRY RESPONSE TO PHOSPHORUS FERTILIZATION." HortScience 25, no. 9 (1990): 1148d—1148. http://dx.doi.org/10.21273/hortsci.25.9.1148d.

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Nutrition Surveys of commercial blueberry fields in 1987 and 1988 indicated leaf phosphorus levels were below the standard (0.125%) in most fields. To determine if phosphorus was limiting, liquid phosphorus (23% phosphoric acid) was applied preemergence at 0, 22.4, 44.8 67.2, or 88.6 kg/ha to 3 commercial blueberry fields identified in 1987 as very low (<.111%), 3 low (.111-.125%), and 3 adequate (>.125%) in leaf phosphorus. Phosphorus concentration in leaf tissue sampled in July 1989 increased linearly with increasing rates of phosphorus. Phosphorus application raised leaf phosphorus le
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19

Liu, Qi Wei. "Resent Advances in Phosphorus Removal from Waste Water." Applied Mechanics and Materials 507 (January 2014): 682–87. http://dx.doi.org/10.4028/www.scientific.net/amm.507.682.

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Phosphorus is a kind of non-renewable resources, and it is the key aspect of water eutrophication. The method which solves these two questions simultaneously is phosphorus recovery from phosphoric water. This article introduces and analyzes three kinds of methods which phosphorus recovery from phosphoric water in presently domestic and foreign studyed and applicated.It narrates technical principle, main craft influencing factors and research development of calcium phosphate, molysite, calorization precipitation and struvite.
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20

Rohith, Ch, and C. Umesha. "Effects of Biofertilizers and Phosphorus on Growth and Yield of Mustard." International Journal of Environment and Climate Change 13, no. 10 (2023): 441–45. http://dx.doi.org/10.9734/ijecc/2023/v13i102664.

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The field experiment titled “Effect of Biofertilizers and Phosphorous on Growth and Yield of Mustard” was conducted during Rabi 2022 at Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj (U.P). The experiment was laid out in randomized block design with nine treatments and control which are replicated thrice. The treatments viz T1: PSB + Phosphorus 40 kg/ha, T2: PSB + Phosphorus 50 kg/ha, T3: PSB + Phosphorus 60 kg/ha, T4: VAM + Phosphorus 40 kg/ha, T5: VAM + Phosphorus 50 kg/ha, T6: VAM + Phosphorus 60 kg/ha, T7: PSB + VAM + Phosphorus 40 kg/ha, T8: PSB + VAM + Phosphorus 50 kg/ha,
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21

Pundarikakshudu, R. "Studies of the Phosphate Dynamics in a Vertisol in Relation to the Yield and Nutrient Uptake of Rainfed Cotton." Experimental Agriculture 25, no. 1 (1989): 39–45. http://dx.doi.org/10.1017/s0014479700016422.

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SUMMARYField studies of the dynamics of transformation and availability of applied phosphorus in a Vertisol cropped with rainfed cotton showed that phosphorus application increased available phosphorous in the soil. However, 70–80% of the phosphorus was fixed when more than 40 kg P2O5 ha−1 was applied. Maximum uptake of phosphorus by cotton occurred during the active growth period 40 to 80 days after germination, as reflected in a steep decline in the labile pool of available phosphorus in the soil. Over 50% of the total inorganic phosphorus occurred as Ca-P, which was the major contributor to
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22

He, Jin Chao, and Ning Zuo. "Influence of Organic Load on Phosphorous Release and Absorption in HA-A/A-MCO Sludge Reduction Process." Applied Mechanics and Materials 253-255 (December 2012): 984–87. http://dx.doi.org/10.4028/www.scientific.net/amm.253-255.984.

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When organic load of mixed liquid is up to a certain value, organic matter content is not the restrictive factor of phosphorus release any more. Optimum organic load for phosphorous anaerobic release in HA-A/A-MCO process is 0.141gCOD/gMLSS.d. Sufficient phosphorus release in anaerobic phase is the premise that high efficiency phosphorus absorption can be obtained in anaerobic phase. The maximum of releasable phosphorus sludge per unit weight (Pm/M) in HA-A/A-MCO process is 5.7mgP/gMLSS
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23

Agrell, S. O., N. R. Charnley, and G. A. Chinner. "Phosphoran olivine from Pine Canyon, Piute Co., Utah." Mineralogical Magazine 62, no. 2 (1998): 265–69. http://dx.doi.org/10.1180/002646198547620.

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AbstractOlivines containing up to 6.1 wt.% P2O5 occur in association with apatite and an unnamed NaCaMg phosphate phase. Phosphoran olivine has been recorded only in pallasite meteorites and from one other terrestrial occurrence. The rarity of palpable phosphorus substitution for silicon may be related to the fact that in most terrestrial rocks, phosphorus is incorporated initially, and remains as, apatite; thus phosphorus excess in an undersilicated environment must be uncommon. However the highly capricious distribution of phosphorus in individual olivines from this and the meteoritic occure
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24

Bhodiwal, Shweta, and Tansukh Barupal. "Phosphate solubilizing microbes: an incredible role for plant supplements." MOJ Ecology & Environmental Sciences 7, no. 5 (2022): 170–72. http://dx.doi.org/10.15406/mojes.2022.07.00263.

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Plants procure phosphorus from soil as the phosphate anion. It is the most un-portable component in plant and soil in comparison to other macronutrients. It’s very well known that phosphorus is the second most significant supplement after the nitrogen required/needed in plant growth. It is a fundamental component in every single living system. Barely 1%-2% of phosphorous is provided to different parts of the plants. It precipitates in soil as orthophosphate or is adsorbed by Fe and Al oxides through legend exchange. Phosphorus-solubilizing bacteria play a substantial part in phosphorus nutriti
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25

Adil, Mihoub. "Citric acid acidification of wheat straw derived biochar for overcoming nutrient deficiency in alkaline calcareous soil (Case of Phosphorus)." International Journal of Agricultural Science and Food Technology 8, no. 3 (2022): 248–52. http://dx.doi.org/10.17352/2455-815x.000173.

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Phosphorous fixation in soils is a serious concern worldwide, and biochar is gaining attention daily due to its potential benefits for improving the agronomic benefits of applied phosphorus. The present study aims to enhance understanding of the phosphorus transformation process in a deprived sandy soil following biochar amendments (no-acidified wheat straw biochar and chemically modified (acidification with 0.01 M C6H8O7) along with or without phosphorus at 250 mg kg−1. A 54-day pot experiment was conducted with two biochar levels of 4%, 8% (w/w), and control, and two phosphorus levels (witho
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26

Kaboudin, Babak, Milad Behroozi, Sepideh Sadighi, and Fatemeh Asgharzadeh. "Recent advances in the electrochemical synthesis of organophosphorus compounds." Beilstein Journal of Organic Chemistry 21 (April 16, 2025): 770–97. https://doi.org/10.3762/bjoc.21.61.

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In this review, we describe recent advances in electrochemical green methods for the synthesis of various organophosphorus compounds through the formation of phosphorus–carbon, phosphorus–nitrogen, phosphorus–oxygen, phosphorus–sulfur, and phosphorus–selenium bonds. The impact of different electrodes is also discussed in this matter. Graphite, platinum, RVC, and nickel electrodes have been used extensively for the electrochemical synthesis of organophosphorus compounds. The recent advances in the electrochemical synthesis of organophosphorus compounds have made this method a promising method f
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27

Filauro, G., R. Prati, C. Marchesini, and A. Coppi. "Bio-P Removal from High Phosphorus Wastewaters: Pilot Testing Confirms Applicability of the Process." Water Science and Technology 23, no. 4-6 (1991): 603–10. http://dx.doi.org/10.2166/wst.1991.0510.

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The performance of biological phosphorus removal from combined wastewaters of municipal and pig farm origin containing up to 100 mg/l initial phosphorus was investigated on a PhoStrip semi-industrial size pilot plant. Objective of the experimentation was to assess the applicability of Bio-P removal to high strength liquors in association with biological nitrification/denitrification. The experimental results indicate that high combined phosphorus and nitrogen removal efficiencies can be obtained, while still operating at practicable process conditions. The operation of the pilot plant demonstr
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28

Lisik, Maria J. "The effect of sodium humane on the growth of tomatoes and the accumulation of phosphorus and iron in mediums of different pH." Acta Societatis Botanicorum Poloniae 53, no. 3 (2014): 377–83. http://dx.doi.org/10.5586/asbp.1984.033.

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The effect of sodium humate on changes in the phosphorus and iron content in shoots of tomatoes cultivated in mediums with a raised or lowered pH and phosphorus dose (compared with controls) were analysed. At low pH, sodium humate increased the accumulation of phosphorus and lessened the excessive accumulation of iron in plants cultivated under conditions of phosphours deficit. At a slightly alkaline pH, sodium humate prevented excessive, accumulation of phosphorus and raised low iron contents. A favorable effect of humate on dry mass production was clearly seen at pH 6.4.
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29

Nakano, Satoshi, Xin Liu, Xue-Feng Han, and Koichi Kakimoto. "Numerical Analysis of Phosphorus Concentration Distribution in a Silicon Crystal during Directional Solidification Process." Crystals 11, no. 1 (2020): 27. http://dx.doi.org/10.3390/cryst11010027.

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For bulk doping, boron and phosphorus are usually used as p-type and n-type dopants, respectively. The distribution of these dopant concentrations in a silicon crystal along the vertical direction is governed by the segregation phenomena. As the segregation coefficient of phosphorus is small, phosphorus concentration distribution in a silicon crystal becomes inhomogeneous; inhomogeneous phosphorus concentration distribution affects the distribution of resistivity in the crystal. Therefore, it is important to control the phosphorus concentration distribution in a silicon crystal and make it uni
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30

Gorazda, Katarzyna, Zygmunt Kowalski, and Zbigniew Wzorek. "From sewage sludge ash to calcium phosphate fertilizers." Polish Journal of Chemical Technology 14, no. 3 (2012): 54–58. http://dx.doi.org/10.2478/v10026-012-0084-3.

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Our work presents the results of the research on the utilization of ashes after sewage sludge combustion comprising phosphorus recovery in the form of useful products. The investigations were divided into three parts: selecting the combustion parameters of sewage sludge, examining ash leaching with mineral acids (nitric and phosphoric) to high phosphorus selectivity assuring a low content of iron and heavy metals in the extracted solutions and precipitation of CaHPO4 .2H2O. Suitable temperature of a sewage sludge combustion enables selective extraction of phosphorus compounds from ash because
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31

Bian, Wei, Lu Guang Wang, Huan Zhen Zhang, Jing Fei Wang, Zai Feng Tian, and Xin Yong Chen. "Study on Phosphorus Pollution Load of Aquaculture in Baiyangdian Lake." Advanced Materials Research 518-523 (May 2012): 1406–11. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.1406.

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Aquaculture can bring excess phosphorus to lakes which causing eutrophication. Figuring out the amount of phosphorus is meaningful to water pollution control. This study aims to clarify how much phosphorus is produced by aquaculture in Baiyangdian Lake each year. A phosphorus balance equation which is based on conservation of matter is established and used to calculate the input and output phosphorus carefully of an experimental field during a breeding cycle. Six parameters which are little fish, adult fish, feed, plants, sediment deposition and release are included in the equation. By the equ
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32

Lu, Enjia, Cuilan Li, Yidan Geng, Tianfeng Liang, and Jinjing Zhang. "Effects of Long-Term Fertilization on Phosphorus Form and Availability in Black Soil." Applied Sciences 14, no. 24 (2024): 11673. https://doi.org/10.3390/app142411673.

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This study explored the effect of the combined application of chemical and organic fertilizers on phosphorus morphology and its conversion to an active state. A long-term field positioning experiment comprising five treatments was conducted in black soil. The results concluded that the soil total phosphorus (TP), available phosphorus (AP), inorganic phosphorus, and organic phosphorus contents of all treatments ranked as follows: 1.5M1NPK > M2NPK > M1NPK > NPK > CK. The long-term application of chemical and organic fertilizers increased the proportion of soil reactive phosphorus and
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33

Belfennache, D., D. Madi, R. Yekhlef, et al. "Thermal annealing ambiance effect on phosphorus passivation and reactivation mechanisms in silicon-based Schottky diodes hydrogenated by MW-ECR plasma." Semiconductor Physics, Quantum Electronics and Optoelectronics 24, no. 04 (2021): 378–89. http://dx.doi.org/10.15407/spqeo24.04.378.

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The main objective of this work is to investigate the effect of thermal annealing in forming gas atmosphere on the mechanism of deactivation and reactivation of phosphorus in silicon-based Schottky diodes. Firstly, the microwave plasma power, initial phosphorus concentration in the samples and hydrogen flux were fixed as 650 W, 1015 cm–3, and 30 sccm, respectively, to investigate the behavior of different working parameters of diodes, specifically the duration and temperature of hydrogenation. Secondly, few samples hydrogenated at 400 °C for 1 h were annealed under the forming gas (10% H2 + 90
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34

Carleton, George, Jessica Glowczewski, and Teresa J. Cutright. "Design and Preliminary Testing of an In-Field Passive Treatment System for Removing Phosphorus from Surface Water." Applied Sciences 11, no. 9 (2021): 3743. http://dx.doi.org/10.3390/app11093743.

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It is well documented that excess phosphorus in source waters is a major contributor to harmful algal bloom formation. While there are many approaches to controlling algal populations in reservoirs, including a variety of phosphorus reduction approaches (e.g., sequestration of legacy phosphorus with alum or clay products), addressing physical phosphorus loading upstream is considered less often. Water treatment residuals (WTR) containing alum, a common waste product of conventional surface water treatment, have been shown to retain the ability to capture phosphorus even after the WTR ‘sludge’
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35

Zhao, Qian, and You Wu. "The Influence of Steel Slag on Phosphorous Slag Cement." Key Engineering Materials 509 (April 2012): 106–12. http://dx.doi.org/10.4028/www.scientific.net/kem.509.106.

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In this paper, the influence of steel slag and its pretreatment method on properties of phosphorus slag cement has been studied. The hydration process and microstructure were studied by X-ray diffraction (XRD) and scanning electronic microscopy (SEM). Results show that, the problem of long setting time of high content phosphorous slag cement can be effectively solved by adding steel slag and pretreated steel slag. About 6% content of steel slag could promote the early hydration of phosphorus slag cement and reduced the initial setting time 2 hours. Grinding phosphorous slag and steel slag with
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36

Dong, Wanqiang, Ningjie Sun, Xiangyi Deng, et al. "Study on the occurrence state of main components of phosphogypsum dihydrate and its impurity distribution." RSC Advances 14, no. 31 (2024): 22280–91. http://dx.doi.org/10.1039/d4ra03273j.

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Phosphorus fluoride impurities in phosphogypsum are enriched in specific mineral phases. The binding energies between minerals and phosphorus and fluoride ions during the wet phosphoric acid production process are the main factors.
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37

Shah, Asad, Jing Huang, Muhammad Numan Khan, et al. "Sole and Combined Application of Phosphorus and Glucose and Its Influence on Greenhouse Gas Emissions and Microbial Biomass in Paddy Soils." Agronomy 12, no. 10 (2022): 2368. http://dx.doi.org/10.3390/agronomy12102368.

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Soil microbial activities are consistently restricted not only by phosphorus availability but also by microbial carbon requirements. Therefore, an incubation experiment was conducted with three soils (QY1, QY2 and QY3) selected on the basis of phosphorus limitation. Results revealed that high N2O emissions, 17.44 µg kg−1, were measured in phosphorus-deficient soil with addition of glucose. In phosphorus-adequate soils, the peaks of N2O emission values in the glucose addition treatment were 20.8 µg kg−d and 24.7 µg kg−1, which were higher than without glucose-added treatments. CH4 emissions wer
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38

Ozawa, Akiyo, Muneaki Yamamoto, Tetsuo Tanabe, Saburo Hosokawa, and Tomoko Yoshida. "Black phosphorus synthesized by solvothermal reaction from red phosphorus and its catalytic activity for water splitting." Journal of Materials Chemistry A 8, no. 15 (2020): 7368–76. http://dx.doi.org/10.1039/c9ta13441g.

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39

Puziy, Alexander M., Olga I. Poddubnaya, Barbara Gawdzik, Magdalena Sobiesiak, and Myroslav Sprynskyy. "Structural Evolution of Polyimide-Derived Carbon during Phosphoric Acid Activation." C 8, no. 3 (2022): 47. http://dx.doi.org/10.3390/c8030047.

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Carbon adsorbents were obtained by carbonization of polyimide polymer with and without the presence of phosphoric acid at temperatures in the range of 400–1000 °C. Carbons produced in the presence of phosphoric acid have been demonstrated to contain up to 13.2% phosphorus. The structure of phosphorus-containing compounds was investigated by XPS and 31P MAS NMR methods. Deconvolution of the P 2p peak with variable binding energy showed the presence of only phosphates/polyphosphates. However, a low value of the O/P ratio is an indirect indication of the possible presence of phosphonates. A 31P M
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40

Puziy, A. M., O. I. Poddubnaya, B. Gawdzik, M. Sobiesiak, and M. M. Tsyba. "Functionalization of Carbon and Silica Gel by Phosphoric Acid." Adsorption Science & Technology 25, no. 8 (2007): 531–42. http://dx.doi.org/10.1260/0263-6174.25.8.531.

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Functionalization of polymer-based carbon (SCS-3) and silica gel (SG60) by phosphoric acid at 800°C was investigated. It was shown that heat treatment of carbon and silica gel in the presence of phosphoric acid at 800°C provides a way of functionalizing materials with phosphorus-containing surface groups. Functionalization of the finished carbon occurs as a surface reaction while destruction of the silica gel structure was observed. Functionalization with phosphoric acid creates new acid surface groups — phosphorus-containing and oxygen-containing in the case of carbon and only phosphorus-cont
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41

Kalaitzidou, Kyriaki, Manassis Mitrakas, and Anastasios Zouboulis. "Post-Removal of Phosphorus from Biologically Treated Wastewater and Recovering It as Fertilizer: Pilot-Scale Attempt—Project PhoReSe." Water 16, no. 11 (2024): 1527. http://dx.doi.org/10.3390/w16111527.

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The major issue of raw materials’ depletion, and more specifically, of phosphorous (an important fertilizer) has currently become an emergent aspect due to expected depletion problems needing immediate handling. This was the reason for the implementation of the PhoReSe project that aimed to remove and recover phosphorus from the secondary (biologically treated) effluent of a municipal wastewater (biological) treatment plant (WWTP “AINEIA”, located near Thessaloniki, N. Greece), treating the wastewaters of the nearby touristic area. Regarding the phosphorous supplementary removal and recovery t
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42

Tian, Shu Xun, Sheng Fu Ji, and Qi Sun. "Preparation of Phosphorus Modified HZSM-5 Zeolite Catalysts and their Catalytic Performances of Methanol to Olefins." Advanced Materials Research 875-877 (February 2014): 295–99. http://dx.doi.org/10.4028/www.scientific.net/amr.875-877.295.

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To improve the selectivity of light olefins, Phosphorous modified ZSM-5 zeolites catalysts with different phosphorous content were prepared by impregnation and were used in the conversion of methanol to olefins. The properties of acidity and microporous structure of the phosphorous modified ZSM-5 zeolites were investigated by XRD, N2-adsorption and desorption, and NH3-TPD. The highest propylene yield (50.82%) was observed over the H-ZSM-5 modified with the phosphorus content at 9% (weight percent). The selectivity of propylene depended strongly on the phosphorus content in the zeolites; The en
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43

YADAV, VINEET, YOGITA DESHMUKH, ANJU PATEL, KUNDAN NARAYAN WASNIK, and PUJA KHARE. "Role of biochar on phosphorus transformation in soil and/or tannery sludge mixtures." Journal of Medicinal and Aromatic Plant Sciences 40, no. 3 (2018): 49–57. http://dx.doi.org/10.62029/jmaps.v40i3.yadav.

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Biochar is used as a solid amendment to stabilize the soil nutrients in otherwise nutrient - deficient soils. In the present study, the mobility of soil phosphorous and phosphomoonoestrases were monitored with respect to biochar amendment. Biochar amendment was used at different application rates with soil and soi sludge mixtures. Soil samples collected at different time intervals were evaluated for phosphorus levels and (acidic and alkaline) phosphatases enzyme activities. The entire data set was subjected to kinetic modeling and results showed that the data was best described by parabolic di
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44

Ma, Junhui, Javad Mohammadi, Olufisayo A. Gali, and Reza A. Riahi. "The Influence of Phosphate-Ester-Based Additives on Metal Cutting Fluid Behavior during the Machining of Titanium Alloy." Lubricants 11, no. 7 (2023): 301. http://dx.doi.org/10.3390/lubricants11070301.

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The behavior of four phosphate ester additives with varying levels of phosphorus concentrations (very high, high, medium, and low) was examined through the course of drilling a Ti-6Al-4V titanium alloy at a constant metal removal rate (4.2 mm3/s). Cutting fluid (CF) additives were evaluated using torque, specific cutting energy (SEC), and tool wear. The drilling conditions employed had a significant influence on the performance of the phosphate ester additives. At 0.105 m/s and 0.188 m/s, the phosphate ester with very high phosphorous levels possessed the lowest SCE and torque values. The high
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45

Abdreimova, R. R., F. Kh Faizova, D. N. Akbayeva, et al. "Catalytic Synthesis of the Esters of Phosphorus Acids from White Phosphorus and Aliphatic or Aromatic Alcohols." Eurasian Chemico-Technological Journal 4, no. 1 (2017): 11. http://dx.doi.org/10.18321/ectj520.

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<p>The various esters of the phosphoric and phosphorous acids have been obtained directly from white phosphorus and aliphatic (or aromatic) alcohols under aerobic atmosphere in the presence of the CuX<sub>2</sub> or FeX<sub>3</sub> (X = Cl, NO<sub>3</sub>, C<sub>3</sub>H<sub>7</sub>CO<sub>2</sub>) salts. Irrespective of the variable nature of the used alcohols and catalysts, trialkyl(aryl) phosphates and dialkyl phosphites are a major products, whereas trialkyl(aryl) phosphites and dialkyl phosphates are a minor prod
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46

Espinosa Gonzalez, Juan, Vicente Espinosa Hernández, Enrique Ojeda Trejo, Julián Delgadillo Martínez, Juan Molina Moreno, and Francisco Sánchez. "Assessing the Nutritional Effect of Lupinus montanus on Zea mays HS-2 (Intercropping) and Identification of Nodular Bacteria through the Use of Rhizotrons." International Journal of Plant Biology 14, no. 4 (2023): 910–21. http://dx.doi.org/10.3390/ijpb14040067.

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Maize (Zea mays sp.) is one of the most important basic grains in our diets, and it requires high levels of nitrogen and phosphorus for optimum growth. However, phosphorous transitions in forms inaccessible to plants. The Lupinus genus, and more specifically, Lupinus albus, through its root clusters, or proteoid roots, has the ability to solubilize portions of phosphorous when it is found in a limited environment. The objective of the current study was to evaluate the effect of Lupinus montanus under phosphorous stress conditions intercropped with maize, utilizing sandy soils with calcium phos
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47

Wang, Bin, and Kang Bi Luo. "Preparation and Research Advance of Electronic Grade Phosphoric Acid." Advanced Materials Research 881-883 (January 2014): 70–73. http://dx.doi.org/10.4028/www.scientific.net/amr.881-883.70.

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The application of high purity phosphoric acid in industrial production is more and more widely used, especially electronic grade phosphoric acid, and the demand of it has risen year by year. This paper introduces the preparation and research advance of electronic grade phosphoric acid, expounds the principle, advantages and disadvantages and research advance of preparing high purity phosphoric acid by high purity phosphorus oxidation method and phosphoric acid purification method. Using hot process by direct method to prepare high purity electronic grade phosphoric acid is still the mainstrea
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48

Chorna, V. V., S. V. Shkondin, V. M. Lypkan, A. V. Tomashevskyi, V. V. Kolomiets, and A. Yu Zavodiak. "Post-traumatic effects of phosphorus weapons: from pathogenesis to treatment." Environment & Health, no. 2 (111) (June 2024): 28–35. http://dx.doi.org/10.32402/dovkil2024.02.028.

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With the beginning of a full-scale war, the negative impact of harmful, dangerous substances due to the use of chemical, phosphorus bombs and other weapons, prohibited by the Geneva Convention, leads to unpredictable consequences for the health of combatants and the civilian population as well. Objectives of the study is to analyze injuries caused by white phosphorus of various types of phosphorus weapons, such as explosive weapons with a wide area of damage - mines, ammunition, long-range missiles; artillery, mortar shells, various types of grenades - in the conditions of the russian invasion
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49

Norman, D. J., J. Chen, J. M. F. Yuen, A. Mangravita-Novo, D. Byrne, and L. Walsh. "Control of Bacterial Wilt of Geranium with Phosphorous Acid." Plant Disease 90, no. 6 (2006): 798–802. http://dx.doi.org/10.1094/pd-90-0798.

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Various bactericides were screened for efficacy in protecting geranium plants (Pelargonium hortorum) from Ralstonia solanacearum infection. Many of these bactericides were found to slow the disease progress; however, they were not able to protect the plants from infection and subsequent death. Potassium salts of phosphorous acid were found to be effective in protecting plants from infection when applied as a drench. The active portion of the potassium salts was found to be phosphorous acid (H3PO3). Phosphorous acid was found to inhibit in vitro growth of R. solanacearum. It is thought to be pr
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50

Zhao, Siheng, Bo Xu, Hao Shan, Qinglei Zhang, and Xiangdong Wang. "How Do Phosphorus Compounds with Different Valence States Affect the Flame Retardancy of PET?" Polymers 15, no. 8 (2023): 1917. http://dx.doi.org/10.3390/polym15081917.

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This work investigated the effect of different valence states of phosphorus-containing compounds on thermal decomposition and flame retardancy of polyethylene terephthalate (PET). Three polyphosphates—PBPP with +3-valence P, PBDP with +5-valence P and PBPDP with both +3/+5-valence P—were synthesized. The combustion behaviors of flame-retardant PET were studied and the structure–property relationships between the phosphorus-based structures with different valence states and flame-retardant properties were further explored. It was found that phosphorus valence states significantly affected the f
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