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Journal articles on the topic 'Ammoniac liquide'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 May 2024

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1

DEHARENG, D., and J. M. GODEAU. "Variations nycthémérales de la concentration en ammoniac dans le liquide du rumen, chez les vaches laitières dans la période péri-partum." Reproduction Nutrition Développement 28, Suppl. 1 (1988): 165–66. http://dx.doi.org/10.1051/rnd:19881157.

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2

Wan, Lin Sheng, Dan Dan Gong, Zan Hui Fu, Hong Chao Li, and Li Sun. "Study on the Removing of Ammonia Nitrogen in Ammonium Paratungstate Crystal Parent Solution." Advanced Materials Research 402 (November 2011): 261–65. http://dx.doi.org/10.4028/www.scientific.net/amr.402.261.

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We realize the goal of removing ammonia nitrogen in ammonium paratungstate crystal parent by using strong sodium tungstate liquid to transform-magnesium salt to take off ammonium thoroughly. The results show that removal rate of ammonia can up to 98.88%, ammonia nitrogen contented in the liquid can down to 0.042g/l. Diluting sodium tungstate solution which has been disposed through the above way can be used to confect liquid before the ion exchange,the liquid with the ion exchange can reach the national effluent standard..

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3

Tu, Zhongbing, Xiaoping Liang, Yu Wang, and Chengbo Wu. "Removal of Phosphorus from High-Phosphorus Manganese Ores by Ammonia-Ammonium Carbonate Leaching Method." Metals 9, no. 12 (2019): 1354. http://dx.doi.org/10.3390/met9121354.

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High-phosphorus manganese ores provide an important source of manganese, which is regarded as an irreplaceable material in the steel industry. The ammonia-ammonium carbonate leaching method was proposed for the removal of phosphorus and extracting manganese from high-phosphorus manganese ore, both effectively and environmentally. To explore the dissolution behavior of phosphorus and manganese in the ammonia-ammonium carbonate solution, the effect of the ammonia-to-ammonium carbonate concentration ratio, the leaching temperature, and the liquid-to-solid ratio on manganese extraction and dephosp

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4

Kim, Eun Ju, Ho Kim, and Eunsil Lee. "Influence of Ammonia Stripping Parameters on the Efficiency and Mass Transfer Rate of Ammonia Removal." Applied Sciences 11, no. 1 (2021): 441. http://dx.doi.org/10.3390/app11010441.

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This study analyzed the influence of different ammonia stripping parameters on ammonia removal efficiency and mass transfer rate. Ammonia stripping was performed on two devices, a column and a packed tower, with artificial ammonium hydroxide wastewater. First, ammonia concentration and pH were varied in a column without liquid circulation. At the same pH, the removal efficiency and mass transfer rate were constant, irrespective of initial ammonia concentration. When pH was increased, the ammonia fraction also increased, resulting in higher removal efficiency and mass transfer rate. Second, the

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5

Burton, Simon A. Q., and Jim I. Prosser. "Autotrophic Ammonia Oxidation at Low pH through Urea Hydrolysis." Applied and Environmental Microbiology 67, no. 7 (2001): 2952–57. http://dx.doi.org/10.1128/aem.67.7.2952-2957.2001.

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ABSTRACT Ammonia oxidation in laboratory liquid batch cultures of autotrophic ammonia oxidizers rarely occurs at pH values less than 7, due to ionization of ammonia and the requirement for ammonium transport rather than diffusion of ammonia. Nevertheless, there is strong evidence for autotrophic nitrification in acid soils, which may be carried out by ammonia oxidizers capable of using urea as a source of ammonia. To determine the mechanism of urea-linked ammonia oxidation, a ureolytic autotrophic ammonia oxidizer, Nitrosospira sp. strain NPAV, was grown in liquid batch culture at a range of p

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6

Yang, Peng, Xiaoping Liang, Chengbo Wu, Tengfei Cui, and Yu Wang. "Study on Adding Ammonium Hydrogen Fluoride to Improve Manganese Leaching Efficiency of Ammonia Leaching Low-Grade Rhodochrosite." Metals 11, no. 9 (2021): 1496. http://dx.doi.org/10.3390/met11091496.

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The ammonia leaching method for treating low-grade rhodochrosite has the advantages of a good impurity removal effect and low environmental pollution. In this paper, aiming at the low leaching efficiency of low-grade rhodochrosite treated by the ammonia leaching method, studies on enhancing the leaching efficiency of manganese by using ammonium hydrogen fluoride as an additive are carried out. The effects of different ammonia concentrations, leaching temperatures, leaching times, liquid-solid ratios, stirring rates, and the addition of ammonium hydrogen fluoride on the leaching efficiency of m

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7

Kleydman, Yekaterina, Nigel Yarlett, and Thomas E. Gorrell. "Production of ammonia by Tritrichomonas foetus and Trichomonas vaginalis." Microbiology 150, no. 5 (2004): 1139–45. http://dx.doi.org/10.1099/mic.0.26939-0.

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Production of ammonia is difficult to find among the various studies of amino acid metabolism in protozoa. Several studies suggest that catabolism of arginine to ammonium is important for the growth of trichomonads. Trichomonads are amitochondriate zooflagellates that thrive under microaerophilic and anaerobic conditions. The authors were able to detect accumulation of ammonium ions and ammonia in cultures of Tritrichomonas foetus and Trichomonas vaginalis, including those resistant to metronidazole. Ammonium ions and ammonia were detected using the indophenol colorimetric method. Cells incuba

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8

Dobrydnev, S. V., O. A. Aleksandrova, and A. N. Novikov. "Degree of Dissolution of Nickel(II) Hydroxide in Mixtures of Aqueous Solutions of Ammonia and Ammonium Bicarbonate." Журнал физической химии 97, no. 1 (2023): 71–74. http://dx.doi.org/10.31857/s0044453723010065.

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The degree of dissolution of nickel(II) hydroxide in mixtures of aqueous solutions of ammonia and ammonium bicarbonate has been studied. The equilibrium between the solid and liquid phases was reached in 11–12 h after the start of experiment. Nickel(II) hydroxide showed higher solubility in the ammonia–carbonate mixture compared with aqueous solutions of ammonia and ammonium bicarbonate. The ratio of ammonium bicarbonate and ammonia concentrations in solution at which the highest degree of dissolution of Ni(OH)2 was achieved was determined. An analytical description of the ion-molecular equili

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9

Saud, Ali, Jouni Havukainen, Mika Mänttäri, and Mika Horttanainen. "Evaluation and techno-economic analysis of packed bed scrubber for ammonia recovery from drying fumes produced during the thermal drying of sewage sludge." E3S Web of Conferences 191 (2020): 03001. http://dx.doi.org/10.1051/e3sconf/202019103001.

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This study investigates the recovery of ammonia from drying fumes during thermal drying of sewage sludge with packed bed acid scrubbers to recover ammonia and to produce ammonium sulfate. The process is modelled for two concentrations, 75 and 100 ppm, and 1000m3/h inlet flowrate of drying fumes containing air and ammonia gas. It results in finding optimal parameters for scale-up of drying fumes during thermal drying of 7700t/a sewage sludge of Lappeenranta city. It is found that a single scrubber, with a 24000 m3/h of inlet gas and an ammonia concentration of 75 ppm, liquid to gas ratio of 1.5

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10

Spirig, C., C. R. Flechard, C. Ammann, and A. Neftel. "The annual ammonia budget of fertilised cut grassland – Part 1: Micrometeorological flux measurements and emissions after slurry application." Biogeosciences 7, no. 2 (2010): 521–36. http://dx.doi.org/10.5194/bg-7-521-2010.

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Abstract. Two commercial ammonia (NH3) analysers were customised to allow continuous measurements of vertical concentration gradients. The gradients were used to derive ammonia exchange fluxes above a managed grassland site at Oensingen (Switzerland) by application of the aerodynamic gradient method. The measurements from July 2006 to October 2007 covered five complete growth-cut cycles and included six applications of liquid cattle slurry. The average accuracy of the flux measurements during unstable and near-neutral conditions was 20% and the detection limit was 10 ng NH3 m−2 s−1. Hence the

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11

Liu, Yue, Hong Ni, Gang Li, and Dafeng Zhi. "Research on NH₃-SCR reductant technology progress for diesel vehicles." E3S Web of Conferences 360 (2022): 01030. http://dx.doi.org/10.1051/e3sconf/202236001030.

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This paper describes the technical principle, research status and application status of four reducing agents (aqueous urea solution, solid ammonium salt, solid ammonia compound and liquid ammonia) which supply NH3 for SCR of diesel vehicles, introduces the replacement methods of solid ammonia, and analyzes the application feasibility of liquid ammonia. A comprehensive comparative study of the four reducing agents is carried out in terms of storage and validity requirements, low temperature performance, ammonia storage capacity, replacement mode, replacement frequency, safety, cost and future a

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12

Spirig, C., C. R. Flechard, C. Ammann, and A. Neftel. "The annual ammonia budget of fertilised cut grassland – Part 1: Micrometeorological flux measurements and emissions after slurry application." Biogeosciences Discussions 6, no. 5 (2009): 9583–625. http://dx.doi.org/10.5194/bgd-6-9583-2009.

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Abstract. Two commercial ammonia (NH3) analysers were customised to allow continuous measurements of vertical concentration gradients. The gradients were used to derive ammonia exchange fluxes above a managed grassland site at Oensingen (Switzerland) by application of the aerodynamic gradient method (AGM). The semi-continuous measurements during 1.5 years covered five complete growth-cut cycles and included six applications of liquid cattle slurry. The average accuracy of the flux measurements during conditions of well established turbulence was 20% and the detection limit 10 ng NH3 m−2 s−1, h

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13

Reig, Mònica, Xanel Vecino, Miguel Aguilar-Moreno, César Valderrama, and José Luis Cortina. "Ammonia Valorization by Liquid–Liquid Membrane Contactors for Liquid Fertilizers Production: Experimental Conditions Evaluation." Membranes 12, no. 7 (2022): 663. http://dx.doi.org/10.3390/membranes12070663.

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Liquid–liquid membrane contactors (LLMCs) were studied as a sustainable technology for ammonia recovery from wastewater. Ammonia can be valorized by LLMCs as a potential nutrient and produce liquid fertilizers. Thus, this work aims for the study of different experimental LLMC conditions to produce ammonium salts by an acid stripping stream. The experiments were conducted using two 3MTMLiqui-CellTM LLMC in a series, located in the vertical position and using HNO3 as the acid stripping solution. The flow rates for the feed and stripping sides were fixed during the tests, and two steps were condu

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14

Kim, Min-Suk, and Jeong-Gyu Kim. "Effects of Thickness of Solid Media, Ventilation Rate, and Chamber Volume on Ammonia Emission from Liquid Fertilizers Using Dynamic Chamber-Capture System (DCS)." Agriculture 10, no. 6 (2020): 226. http://dx.doi.org/10.3390/agriculture10060226.

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This study was conducted with the aim of improving the dynamic camber-capture system, which estimates ammonia emissions during the application of liquid fertilizer from livestock manure. We focused on the volume of the chamber and headspace, the height of the solid media, the flow rate of the pump, and the ventilation rate. Total ammoniacal nitrogen (NH3 + NH4+) is an important factor affecting ammonia volatilization. Even though the characteristics of liquid fertilizer were changed, the effect of total ammoniacal nitrogen on ammonia volatilization remained the largest. Increasing the thicknes

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15

Ma, Shao Jian, Jin Lin Yang, Gui Fang Wang, Wei Mo, and Xiu Juan Su. "Alkaline Leaching of Low Grade Complex Zinc Oxide Ore." Advanced Materials Research 158 (November 2010): 12–17. http://dx.doi.org/10.4028/www.scientific.net/amr.158.12.

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Alkaline leaching is an important way for treating low grade metal oxide ore, which has some advantages such as low corrosion and low pollution compared to acidic leaching. In order to recover the zinc from a low grade complex zinc oxide ore in which the grade of Zn and Fe are 13 wt.% and 40.2 wt.%, respectively, and 52.8% of Zn is contained in siderite, 34.63% in limonite and 11.55% in smithsonite, this paper presents a preliminary investigation of this type of ore by alkaline leaching method. In this study, ammonia-ammonium chloride and ammonia-ammonium carbonate were used as the leaching re

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16

Cheng, Guan Wen, Wen Yuan Wei, Guo Dan Lu, Zhi Chao Wu, Xiang Feng Huang, and Fei Juan Zhang. "A Study on the Ammonia Removal Mechanisms for the A/O Biological Nitrogen Removal Process with the Enhancement of the Zeolite." Advanced Materials Research 322 (August 2011): 52–56. http://dx.doi.org/10.4028/www.scientific.net/amr.322.52.

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This paper mainly studied on using activated sludge process with zeolite to upgrade the traditional secondary treatment plants. In this process, zeolite acted as ammonian sorbent and microbial carrier firstly, and then composed zeolite and biological complex to improve denitrification of anaerobic zone and nitrification of oxic zone. In the anaerobic zone, the influent contained a lot higher ammonian concentration. The zeolite adsorbed ammonian, it increased carbon nitrogen ratio and facilitated denitrification. While in the oxic zone, adsorbate concentration of mixed liquid decreased owing to

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17

Siegrist, H., W. Hunziker, and H. Hofer. "Anaerobic digestion of slaughterhouse waste with UF-membrane separation and recycling of permeate after free ammonia stripping." Water Science and Technology 52, no. 1-2 (2005): 531–36. http://dx.doi.org/10.2166/wst.2005.0563.

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Anaerobic digestion can adapt to free ammonia to a certain extent. During the anaerobic digestion of slaughterhouse waste, however, an ammonia concentration of up to 15 g N l−1 can be reached in the sludge liquid and this will even inhibit adapted sludge. To lower this concentration, a fraction of the digester liquid must therefore be continuously separated from the digested sludge and the free ammonia stripped before the liquid is recycled to the digester. A mesophilic laboratory digester was successfully operated with an ammonium concentration of 4–5 g l−1 and a pH of 8.0–8.4. After free amm

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18

Rodriguez Rodriguez, Nerea, Lukas Gijsemans, Jakob Bussé, et al. "Selective Removal of Zinc from BOF Sludge by Leaching with Mixtures of Ammonia and Ammonium Carbonate." Journal of Sustainable Metallurgy 6, no. 4 (2020): 680–90. http://dx.doi.org/10.1007/s40831-020-00305-3.

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Abstract The zinc content of basic oxygen furnace (BOF) sludges is too high for direct recycling into the blast furnace via the sinter plant, as excessive zinc concentrations are detrimental for the refractory lining of the blast furnace. However, by partial and selective removal of zinc from the BOF sludge, the residual sludge can be used as a secondary iron resource in the blast furnace. In this paper, BOF sludge was leached with aqueous ammonia, aqueous solutions of ammonium salts (chloride, carbonate, and sulfate), and aqueous mixtures of ammonia and ammonium salt. The mixtures of ammonia

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19

Yang, Chun Ming, Wei Liang Zhao, Hong Bo Wang, and Xue Fen Zhang. "A Green Route to Mass Production of Anhydrous Triammonium Citrate." Advanced Materials Research 518-523 (May 2012): 3908–11. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.3908.

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Triammonium citrate was manufactured by using neutralization of citric acid solution with liquid ammonia directly. Compared with conventional route using ammonium bicarbonate or aqueous ammonia as neutralizer, the method has advantages of simple technology process, 100% raw materials utilization ratio and totally zero emission during mass production；while the raw materials utilization ratio was only 22.8% and 48.6% for using ammonium bicarbonate or aqueous ammonia as neutralizer under the same conditions. Furthermore, the proposed green route to production of triammonium citrate will save at l

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20

Müller, Matthias, and Magnus R. Buchner. "Preparation and crystal structures of the beryllium ammines [Be(NH3)4]X2 (X = Br, I, CN, SCN, N3) and Be(NH3)2X'2 (X' = Cl, Br, I)." Chemical Communications 55, no. 91 (2019): 13649–52. http://dx.doi.org/10.1039/c9cc07712j.

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21

Chen, Feng, and Ming Yu Li. "Preparation of Ammonium Iron Blue from Copperas and Ammonium Sulfate Wasted Liquid." Advanced Materials Research 898 (February 2014): 443–46. http://dx.doi.org/10.4028/www.scientific.net/amr.898.443.

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Ammonium iron blue was prepared with ferrous sulfate and ammonium sulfate wasted liquid, ferrous sulfate is a byproduct from titanium dioxide production, and ammonium sulfate waste liquid is produced by ammonia oxidation iron oxide red. The influence of some parameters such as n (FeSO4)/n (Na4Fe (CN)6) ratio, PH value , reaction time, reaction temperature were discussed. The total iron content of ammonium iron blue is 35.89% and the quality of ammonium iron blue was accorded with the industrial standard (HG/T 3001-1999). SEM experimental result proved that the particle size of ammonium iron bl

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22

Nurma Wahyusi, Kindriari, Atika Nandini, Lucky Indrati Utami, et al. "The Effect of Resin and NH4OH Addition in The Making of Ammonium Silica Fertilizer from Geothermal Sludge." International Journal of Eco-Innovation in Science and Engineering 2, no. 01 (2021): 1–6. http://dx.doi.org/10.33005/ijeise.v2i01.29.

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Geothermal sludge is a waste product from geothermal where it contains SiO2 which can be used as fertilizer. In this study, the making of silica ammonium fertilizer was carried out by taking salicy acid from geothermal sludge by extracting and adding resin which was then modified with NH4OH addition. Extraction was done using 1000 ml of KOH 1 N to dissolve 60 grams of Geothermal Sludge. Resins are added with variations in resin weight, namely, 5, 10, 20, 30, and 40 grams. NH4OH was added with variations in concentrations namely 3, 6, 9, 12 and 15% with a ratio of filtrate and NH4OH solution of

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23

Yamamoto, Hideki, Junji Tokunaga, and Seiji Sanga. "Solubilities of ammonium iodide, ammonium bromide, and ammonium iodide-ammonium bromide mixture in liquid ammonia." Journal of Chemical & Engineering Data 31, no. 3 (1986): 283–85. http://dx.doi.org/10.1021/je00045a007.

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24

Takeda, S., and P. A. Egelstaff. "The isotope effect in the electronic structure factors of liquid NH3 and ND3." Canadian Journal of Physics 73, no. 11-12 (1995): 735–40. http://dx.doi.org/10.1139/p95-108.

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Gamma rays from a radioisotope source, 241Am, were scattered from samples of liquid light ammonia (NH3) and heavy ammonia (ND3) at temperatures of 294.5 and 284.5 K under their normal vapour pressures to determine the electronic liquid structure factors. In addition the densities of these samples were checked by the gamma ray absorption technique. From the difference between the total electronic structure factors of liquid NH3 and ND3, the difference of the r-space electronic correlation functions of the two liquids (at the same temperature) was evaluated. The observable difference is due (mai

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25

Zhou, Wen Bo, Ping Zou, Pei Shi Sun, Xiao Yi Bi, Yong Yang Mao, and Xiao Yun Zheng. "Utilization of the By-Products for Simultaneous Purification of Sulfur Dioxide and Nitrogen Oxide in Bio-Trickling Process." Advanced Materials Research 779-780 (September 2013): 1220–23. http://dx.doi.org/10.4028/www.scientific.net/amr.779-780.1220.

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The potential of using the waste from simultaneous NOx and SO2 purification bio-trickling process to leach copper ore and to make fertilizer was investigated. It was found there were two main exhausted by-products in the purification process: the acidic liquid in desulfurization tower and the alkalescent liquid in denitrogenation tower. Through operation of leaching the oxide ore sample containing 2.58% copper by the acidic liquid, the effective grade of the metal to be extracted reached 28.37% by weight. With adding proportional dose of ammonia into the alkalescent liquid or the acidic liquid

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26

Raj, Wojciech, Daisy Yang, and Craig Priest. "Rapid Fabrication of Superhydrophobic Virtual Walls for Microfluidic Gas Extraction and Sensing." Micromachines 12, no. 5 (2021): 514. http://dx.doi.org/10.3390/mi12050514.

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Based on the virtual walls concept, where fluids are guided by wettability, we demonstrate the application of a gas phase extraction microfluidic chip. Unlike in previous work, the chip is prepared using a simple, rapid, and low-cost fabrication method. Channels were cut into double-sided adhesive tape (280 µm thick) and bonded to hydrophilic glass slides. The tape was selectively made superhydrophobic by ‘dusting’ with hydrophobic silica gel to enhance the wettability contrast at the virtual walls. Finally, the two glass slides were bonded using tape, which acts as a spacer for gas transport

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27

Amaral, Míriam C. S., Nátalie C. Magalhães, Wagner G. Moravia, and Carolina D. Ferreira. "Ammonia recovery from landfill leachate using hydrophobic membrane contactors." Water Science and Technology 74, no. 9 (2016): 2177–84. http://dx.doi.org/10.2166/wst.2016.375.

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This article aims to evaluate membrane contactors capability to remove and recover ammonia from landfill leachate (LFL). A hydrophobic hollow fiber membrane module was used to achieve such purpose. A sulfuric acid diluted solution was used as extraction solution to speed up ammonia content removal. Several factors that have influence on ammonia removal and recovery capability such as ammonia solution pH, concentration of sulfuric acid solutions and flow rate of liquid phases have been examined. Microfiltration was the method used as pretreatment. The results have shown that membrane contactor

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28

Ali Bawa, Ramadan. "Synthesis of Some Organic Ammonium Formate Salts and Study of Their Antifungal Properties." Journal of Clinical Research and Reports 11, no. 4 (2022): 01–05. http://dx.doi.org/10.31579/2690-1919/257.

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This work is concerned with the preparation of a number of organic ammonium formate salts (or ionic liquids; ILs) throughout a reaction between the formic acid and some aliphatic and aromatic amines including the ammonia. Five organic ammonium formate salts were formed, some of them were in the form of solid salts and others were as the ionic liquids (ILs) at room temperature. The yields of the prepared organic salts ranged from (21%) to (79%). However, some attempts towards the preparation of other fifteen organic salts were not successful. The resulting five organic ammonium formate salts/io

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29

Suchentrunk, Christof, and Nikolaus Korber. "Reduktion von Isochinolin und Indol mit Cäsium in flüssigem Ammoniak / Reduction of Isoquinoline and Indole with Cesium in Liquid Ammonia." Zeitschrift für Naturforschung B 58, no. 10 (2003): 990–96. http://dx.doi.org/10.1515/znb-2003-1009.

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Isoquinoline and indole were reduced with solutions of cesium in liquid ammonia and the resulting crystalline compounds isolated as ammonia-rich solvate crystals. The reduction of isoquinoline yields the anion bisisoquinoline-2,2’-diide in the compound Cs2C18H14N2 · (7/2) NH3 as the result of a coupling reaction. Indole is reduced to the 5,8-dihydroindolide anion in the ammoniate CsC8H8N · 3NH3. Both anions display interactions between their aromatic π-systems and the cesium cations.

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30

Pye, Havala O. T., Andreas Zuend, Juliane L. Fry, et al. "Coupling of organic and inorganic aerosol systems and the effect on gas–particle partitioning in the southeastern US." Atmospheric Chemistry and Physics 18, no. 1 (2018): 357–70. http://dx.doi.org/10.5194/acp-18-357-2018.

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Abstract. Several models were used to describe the partitioning of ammonia, water, and organic compounds between the gas and particle phases for conditions in the southeastern US during summer 2013. Existing equilibrium models and frameworks were found to be sufficient, although additional improvements in terms of estimating pure-species vapor pressures are needed. Thermodynamic model predictions were consistent, to first order, with a molar ratio of ammonium to sulfate of approximately 1.6 to 1.8 (ratio of ammonium to 2 × sulfate, RN∕2S ≈ 0.8 to 0.9) with approximately 70 % of total ammonia a

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31

Jaya, Danang, Anisa Anisa, Dian Prasetyani Basuki, and Tunjung Wahyu Widayati. "Leaching SiO₂ On Coal Fly Ash As Ammonium Adsorbent In Tofu Liquid Waste Using Hydrothermal Method." Eksergi 19, no. 3 (2022): 155. http://dx.doi.org/10.31315/e.v19i3.8204.

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Soybean is one of the main food commodities in Indonesia. One of the soybean processing that is often consumed is tofu. Inappropriate treatment of tofu liquid waste is very dangerous for life. It is noted that the ammonia content in tofu liquid waste is 23.3-23.5 mg/l which can cause odors that disturb the residents' comfort. One alternative solution for purifying tofu liquid waste is to carry out an adsorption process using coal fly ash. Fly ash contains metal oxides in the form of SiO₂, Al₂O₃, Fe₂O₃, CaO, MgO, K₂O, and Na₂O. The content of SiO₂ as much as 60-70% in it causes fly ash to be ve

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32

Chastain, John P. "Ammonia Volatilization Losses during Irrigation of Liquid Animal Manure." Sustainability 11, no. 21 (2019): 6168. http://dx.doi.org/10.3390/su11216168.

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Ammonia loss resulting from land application of liquid animal manure varies depending on the composition of the manure and the method used to apply manure to cropland. High levels of ammonia volatilization result in an economic loss to the farmer based on the value of the nitrogen and have also been shown to be a source of air pollution. Using irrigation as a method of applying liquid manure to cropland has generally been accepted as a method that increases the volatilization of ammonia. However, only three studies available in the literature measured the amount of ammonia lost during the irri

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33

Dumont, Éric, Solène Lagadec, Nadine Guingand, et al. "Ammonia Removal Using Biotrickling Filters: Part A: Determination of the Ionic Nitrogen Concentration of Water Using Electrical Conductivity Measurement." ChemEngineering 4, no. 3 (2020): 49. http://dx.doi.org/10.3390/chemengineering4030049.

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It is emphasized that a generalized relationship can be used to predict the ionic nitrogen concentration (i.e., sum of ammonium NH4+, nitrite NO2− and nitrate NO3−) of the scrubbing liquid in a biotrickling filter treating ammonia emissions by measuring the electrical conductivity (EC) of the water directly. From measurements carried out on different water samples from six biotrickling filters in operation in pig husbandries, the generalized relationship is: Σ([NH4+]+[NO2−]+[NO3−]) g N/L = 0.22 EC mS/cm. This equation is valid provided the fresh water feeding the biotrickling filter has a low

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34

King, Tseng-Ven, Takao Oi, Anthony Popowicz, Karl Heinzinger, and Takanobu Ishida. "Vapor Pressure Isotope Effects in Liquidand Solid Ammonia." Zeitschrift für Naturforschung A 44, no. 5 (1989): 359–70. http://dx.doi.org/10.1515/zna-1989-0503.

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The H/D and 14N/15N vapor pressure isotope effects in liquid and solid ammonia have been measured at temperatures between 163 K and 243 K. The isotopic vapor pressure data have been fitted to T ln (P′P) = A/T- B for the liquid/liquid, liquid/solid and solid/solid ranges of temperature. The triple points are; 195.41 K (45.49 torr) for 14NH3, 198.96 K (48.35 torr) for 14ND3, and 195.58 K (48.83 torr) for 15NH3. The isotopic difference in the vapor pressures of NH3 and ND3 at temperatures between 195.41 K and 198.96 K is nearly independent of temperature within the present experimental uncertaint

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35

Mayor, Álvaro, Mònica Reig, Xanel Vecino, José Luis Cortina, and César Valderrama. "Advanced Hybrid System for Ammonium Valorization as Liquid Fertilizer from Treated Urban Wastewaters: Validation of Natural Zeolites Pretreatment and Liquid-Liquid Membrane Contactors at Pilot Plant Scale." Membranes 13, no. 6 (2023): 580. http://dx.doi.org/10.3390/membranes13060580.

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This study evaluates a hybrid system combining zeolites as a sorption stage and a hollow fiber membrane contactor (HFMC) for ammonia (NH3) recovery from treated urban wastewater. Ion exchange with zeolites was selected as an advanced pretreatment and concentration step before the HFMC. The system was tested with wastewater treatment plant (WWTP) effluent (mainstream, 50 mg N-NH4/L) and anaerobic digestion centrates (sidestream, 600–800 mg N-NH4/L) from another WWTP. Natural zeolite, primarily clinoptilolite, demonstrated effective desorption of retained ammonium using a 2% NaOH solution in a c

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Chen, Weikun, Stefan Grimberg, Shane Rogers, and Taeyoung Kim. "Electrochemically Mediated Ammonia Removal and Recovery from Wastewater Using Functional Membranes." ECS Meeting Abstracts MA2023-01, no. 55 (2023): 2681. http://dx.doi.org/10.1149/ma2023-01552681mtgabs.

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Wastewater treatment plants (WWTPs) typically use anaerobic digestion (AD) to treat sludge, but ammonia produced during AD process returns to the headworks of WWTPs. The amount of ammonia in the liquid stream produced after dewatering the stabilized sludge, commonly referred to as dewatering sidestream, could contribute as high as 20% of the overall ammonia loading to WWTPs. Several sidestream treatment technologies are being developed not only to prevent additional ammonia inputs to WWTPs, but also to valorize ammonia for fertilizer production. Electrochemically mediated processes can achieve

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Roßmeier, Thomas, and Nikolaus Korber. "Erstmalige Charakterisierung der Ammoniak-Proton-Komplexe [(NH3)3H]+ und [(NH3)4H]+ in den Kristallstrukturen von (NH4)3AsS4 · 5 NH3 und (NH4)3SbS4 · 8 NH3 / First Characterization of the Ammonia-Proton-Complexes [(NH3)3H]+ and [(NH3)4H]+ in the Crystal Structures of (NH4)3AsS4 · 5 NH3 and (NH4)3SbS4 · 8 NH3." Zeitschrift für Naturforschung B 58, no. 7 (2003): 672–77. http://dx.doi.org/10.1515/znb-2003-0711.

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The compounds (NH4)3AsS4· 5 NH3 (1) and (NH4)3SbS4· 8 NH3 (2) were prepared by the reaction of Na3AsS4 and Na3SbS4 with a proton-charged ion exchange material in liquid ammonia and characterized by low temperature single crystal X-ray structure analysis. The ammonium-ammoniates show H3N-H···N-hydrogen bonds between the ammonium ion and ammonia molecules ranging from 1.86 to 2.55 Å (DHA-angles: 145 - 173°) and H3N-H···S-bonds to the thioanions between 2.36 and 2.97 Å (DHA-angles: 130 - 176°). The former of the interactions are responsible for the formation of [(NH3)2H]+, [(NH3)3H]+ and [(NH3)4H

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Ksenofontov, V., and L. Kustov. "Transformations of xylenes in trimethylammonium hydrochloride—Aluminum chloride ionic liquid." Open Chemistry 1, no. 3 (2003): 305–13. http://dx.doi.org/10.2478/bf02476231.

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AbstractIsomerization of m-, o-and p-xylenes in the presence of trimethylammonium hydrochloride-AlCl3 ionic liquid with different composition was studied. Ionic liquids with the following ammonium salt: AlCl3 molar ratios were used: 1∶2, 1∶1.5 and 1∶1.25. It was shown that isomerization of xylenes proceeds under mild conditions at temperatures from 60°C to 110°C. It was found that the activity and selectivity of the ionic liquids depends on their composition. The most effective catalyst was the ionic liquid with the ammonium salt: AlCl3 molar ratio equal to 1∶2.

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Li, Hui, Linfei Zhao, Le Wang, Jinglong Liang, Hongyan Yan, and Jinrui Liu. "Leaching Kinetics of Secondary Zinc Oxide in a NH3–NH4HCO3–H2O System." Crystals 11, no. 5 (2021): 496. http://dx.doi.org/10.3390/cryst11050496.

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Secondary zinc oxide (SZO), which comes from the zinc industry, is an important secondary resource of zinc and other valuable metals. In this study, the production feasibility and rationality of a cleaner zinc recovery process using SZO and a hydrometallurgical method were described. Zinc extraction is promoted by the addition of ammonium bicarbonate to a NH3–H2O system, and the maximum recovery of zinc could be close to 80% at the optimum leaching conditions of a stirring rate of 400 rpm, an ammonia/ammonium ratio of 7:3, a total ammonia concentration of 4 mol/L, and a liquid/solid ratio of 7

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Dong, Linhan, Dongdong Feng, Yu Zhang, et al. "Effects of Solubilizer and Magnetic Field during Crystallization Induction of Ammonium Bicarbonate in New Ammonia-Based Carbon Capture Process." Energies 15, no. 17 (2022): 6231. http://dx.doi.org/10.3390/en15176231.

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As a chemical absorption method, the new ammonia carbon capture technology can capture CO2. Adding ethanol to ammonia can reduce the escape of ammonia to a certain extent and increase the absorption rate of CO2. The dissolution and crystallization of ethanol can realize the crystallization of ammonium bicarbonate and generate solid products. The induction of the crystallization process is influenced by many parameters, such as solution temperature, supersaturation, and solvating precipitant content. The basic nucleation theory is related to the critical size of nucleation. Accurate measurement

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Tomida, Daisuke, Kousuke Suzuki, Yuuichi Katou, and Chiaki Yokoyama. "Vapor Pressures and Liquid Densities of Ammonium Chloride + Ammonia Mixtures." Journal of Chemical & Engineering Data 53, no. 7 (2008): 1583–86. http://dx.doi.org/10.1021/je8001267.

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Tomida, Daisuke, Kousuke Suzuki, and Chiaki Yokoyama. "Vapor Pressures and Liquid Densities of Ammonium Bromide + Ammonia Mixtures." Journal of Chemical & Engineering Data 55, no. 1 (2010): 341–45. http://dx.doi.org/10.1021/je900359y.

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Tomida, Daisuke, Kousuke Suzuki, and Chiaki Yokoyama. "Vapor Pressures and Liquid Densities of Ammonium Iodide + Ammonia Mixtures." Journal of Chemical & Engineering Data 55, no. 4 (2010): 1532–36. http://dx.doi.org/10.1021/je9006713.

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Jehoulet, C., A. Demortier, and J. P. Lelieur. "Electrochemical studies of ammonium tetrasulphide in solution in liquid ammonia." Journal of Electroanalytical Chemistry and Interfacial Electrochemistry 296, no. 1 (1990): 77–92. http://dx.doi.org/10.1016/0022-0728(90)87234-b.

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Zhang, Tie Min, Zhi Cong Wei, and Ying Bo Mao. "Ammonia Leaching Study on Refractory Oxidised Copper Ores." Applied Mechanics and Materials 563 (May 2014): 53–56. http://dx.doi.org/10.4028/www.scientific.net/amm.563.53.

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Ammonia leaching research is carried out on a certain oxidised copper ores. The effects of oxidized copper ores which came from Yunnan Province were studied in laboratory in order to find out the optimum leaching conditions under normal temperature and pressure. The ores belonged to typical high binding rate minerals. The optimum conditions obtained were as follows: granding fineness about 90% -0.074mm, ammonia concentration 2 mol/l, ammonium fluoride concentration 1.5mol/l , leaching time 2h, and liquid-solid ratio 3:1.The leaching rate of this ore could reach 86%.

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MAHMOUD, SHERIF SIDDICK. "CORNEAL TOXICITY ASSOCIATED WITH AMMONIA EXPOSURE INVESTIGATED BY FOURIER TRANSFORM INFRARED SPECTROSCOPY." Biophysical Reviews and Letters 04, no. 04 (2009): 331–43. http://dx.doi.org/10.1142/s1793048009001083.

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Chemical injury to the eye is still an important cause of blindness and serious complications. Gaseous ammonia combines with tissue water to form ammonium hydroxide ( NH 4 OH ). This exothermic reaction results in both heat and chemical burns. Although, over the years, the different biological effects of anhydrous ammonia are well known, its ocular effects are less clearly documented. This study reports the corneal structural alterations that may be induced as a result of ammonia exposure (gas or liquid) that was studied by Fourier transform infrared spectroscopy. The resulted IR spectra were

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Klein, Wilhelm, and Martin Jansen. "Darstellung und Kristallstruktur von Lithiumozonid-Ammoniakat (1/5) LiO3 · 5 NH3/Synthesis and Crystal Structure of Lithiumozonide-Ammonia (1/5) LiO3 · 5 NH3." Zeitschrift für Naturforschung B 54, no. 11 (1999): 1345–49. http://dx.doi.org/10.1515/znb-1999-1101.

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Lithium ozonide has been synthezised starting from cesium ozonide via cation exchange in liquid ammonia and crystallizes at -78°C as an ammoniate, LiO3 · 5NH3. The coarse, ruby red crystals decompose above the boiling temperature of ammonia and are extremely sensitive to moisture. The crystal structure of L iO3 · 5NH3 (P c21n; a = 1231.9(5), b = 637.4(2), c = 1104.8(4) pm; Z = 4; R1 = 4.57%; 1318 independent reflections) consists of lithium tetramine complexes, ozonide anions and non coordinating ammonia molecules. With respect to the arrangement of the complex cations and of the anions there

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Stojanovska, Marina, and Vladimir M. Petrusevski. "Chemistry of Alkali Metals 1. A Simple Synthesis of Liquid K-Na Alloy and Few Examples of its Use in the Chemistry Education Lab." Educación Química 18, no. 2 (2018): 114. http://dx.doi.org/10.22201/fq.18708404e.2007.2.65961.

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<span>Upon pressing small pieces of sodium and potassium with a glass rod, the solid pieces turn into silvery liquid product a KNa alloy. The alloy reacts with water very vigorously (often an explosion occurs). This experiment is reserved only for chemistry instructors, providing they take all necessary precautions. Two much safer experiments are described: a novel one, where the alloy is allowed to react with mercury, giving KNa amalgam, and the reaction of the obtained amalgam with saturated aqueous solution of ammonium chloride, where unstable ammonium amalgam is formed. Ammonium

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Pötter, Markus, Fred Bernd Oppermann-Sanio, and Alexander Steinbüchel. "Cultivation of Bacteria Producing Polyamino Acids with Liquid Manure as Carbon and Nitrogen Source." Applied and Environmental Microbiology 67, no. 2 (2001): 617–22. http://dx.doi.org/10.1128/aem.67.2.617-622.2001.

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ABSTRACT Poly(γ-d-glutamic acid) (PGA)-producing strains ofBacillus species were investigated to determine their ability to contribute to reducing the amount of ammonium nitrogen in liquid manures and their ability to convert some of the ammonium into this polyamino acid as a transient depot for nitrogen. Organisms that do these things should help solve the serious environmental problems which are caused by the use of large amounts of liquid manure resulting from intensified agriculture; these problems are mainly due to the high content of ammonium nitrogen. Bacillus licheniformis ATCC 9945 an

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Zhang, Shaobo, Sanfan Wang, Yangyang Zheng, and Han Du. "Pretreatment-Membrane Electrolysis Process for Treatment of Ammonium Sulfate Double Salt Crystals Formed During Electrolytic Manganese Production." Crystals 9, no. 12 (2019): 667. http://dx.doi.org/10.3390/cryst9120667.

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Ammonium sulfate double salt crystals (ASDSCs) are a by-product formed during the electrolytic production of manganese. The long-term open-air stacking of ASDSCs leads to the manganese and ammonia nitrogen present inside leaching with rainwater, which seriously damages the ecological environment. To find a reasonable treatment method, we developed a pretreatment-membrane electrolysis method, which allowed for the recycling of ASDSCs stepwise. At the beginning, the ASDSCs were dissolved in water. The Mn2+ and Mg2+ present in the crystals were converted into MnCO3 and MgCO3 and recycled for the

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