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Journal articles on the topic 'Aluminum sulfate water solution'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Chen, Ting Yi, Wen Lu, Wei Liu, Ya Dian Xie, and Ye Qi Fu. "Preparation of Purity Al₂O₃for LED Sapphire Materials by Ammonium Aluminum Sulfate and its Performance." Advanced Materials Research 1053 (October 2014): 50–55. http://dx.doi.org/10.4028/www.scientific.net/amr.1053.50.

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The preparation of aluminium sulfate adopting the sulfuric acid heating method with Al (OH)3 as raw material, and join the β complexing agent in aluminium sulfate solution to remove impurities; ammonium aluminum sulfat is prepared by the reaction of the ammonium solution and aluminum sulfate, and purify ammonium aluminum sulfate to get high purity ammonium aluminum sulfate crystals containing crystal water. Purify the crystallization of ammonium aluminum sulfate with containing water treated at 1250 °C for 3 h. Then the high purity alumina was prepared. Break the high purity alumina to press,

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2

Sharipov, Muzafar. "Development of the method for obtaining and studying vitriol of the iron sulphate based on iron-containing wastes." BIO Web of Conferences 130 (2024): 06013. http://dx.doi.org/10.1051/bioconf/202413006013.

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Especially in recent years, a ferric sulfate solution has occupied the attention as a useful water treatment agent and, particularly, a ferric sulfate solution and a basic ferric sulfate solution have a quick sedimentation speed for the resulting flocs and show good deodorizing ability as compared with a water treatment agent of an aluminum type such as an aluminum sulfate solution and la basic aluminum chloride solution whereby they have been widely used as a water treatment agent for waste water from paper manufacturing industry, from food industry, from chemical industry, leather industry.

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3

Dushkin, S., T. Shevchenko, and O. Galkina. "USE OF MODIFIED REAGENTS SOLUTIONS WHEN PREPARING DRINKING WATER." Municipal economy of cities 6, no. 166 (2021): 141–45. http://dx.doi.org/10.33042/2522-1809-2021-6-166-141-145.

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Currently, attention is paid to the intensification of the process of natural and wastewater treatment, improvement of technology, development of new effective methods of intensification of water treatment. This will simplify the existing technology of water treatment, reduce labor-intensive processes of preparation and dosing of reagents, reduce the cost of operating treatment plants, increase their productivity, improve quality and reduce the cost of treated water. Treatment of water with a modified coagulant solution allows to increase the hydraulic size of the coagulated suspension. The st

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Dushkin, S. "CONTACT CLARIFIERS IN DRINKING WATER TREATMENT PROCESSES." Municipal economy of cities 3, no. 170 (2022): 44–52. http://dx.doi.org/10.33042/2522-1809-2022-3-170-44-52.

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The article deals with the issues of resource-saving technology in the preparation of drinking water on contact clarifiers. One of the methods of water purification from coarse and colloidal contaminants is the method of contact coagulation using aluminum sulfate coagulant. It is advisable to use contact clarifiers in single-stage treatment schemes for low-turbid colored and cloudy-colored waters, when the total content of suspended solids in the water entering the contact clarifiers, including the suspension formed as a result of introducing reagents into the water, does not exceed 150 mg/l.

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Utami, Lucky Indrati, Tahan Simamora Rizaldi, Kindriari Nurma Wahyusi, and Reva Edra Nugraha. "The Utilization of Lapindo Mud Waste for Aluminium Sulfate Production." International Journal of Eco-Innovation in Science and Engineering 2, no. 02 (2021): 14–19. http://dx.doi.org/10.33005/ijeise.v2i02.40.

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The Lapindo mudflow disaster in East Java Province, or also known as LUSI (LUmpur “mud”-SIdoarjo) has become spectacular longest ongoing disaster in recent memory since 2006. The utilization of volcanic Lapindo mud could be the promising solution to prevent further environmental damage. The chemical composition of Lapindo mud contained of 44.1% SiO2, 23.7% Fe2O3, 13% Al2O3, 7.02% CaO, 5.35% MoO3, 2.53% K2O, 1.84% TiO2 and 0.7% Na2O. Aluminium sulfate (Al2(SO4)3) or “alum” have been widely used as coagulation compound in water treatment, paper and textiles industry. Aluminium sulfate can be syn

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Dwipurwani, Oki, Fitri Maya Puspita, Suzlin Supadi, Evi Yuliza, and Dhiya Qatrunnada. "HOLT-WINTER METHOD FOR FORECASTING LIQUID ALUMINUM SULFATE USAGE FOR PROBABILISTIC INVENTORY MODELING Q WITH ERLANG DISTRIBUTION." BAREKENG: Jurnal Ilmu Matematika dan Terapan 19, no. 1 (2025): 453–64. https://doi.org/10.30598/barekengvol19iss1pp453-464.

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Water is a natural resource important for life and daily activities. Water distributed by the Regional Drinking Water Company (PDAM) should include a coagulation process using liquid aluminum sulfate as a coagulant before it can be consumed. Therefore, this research aims to predict the need for liquid aluminum sulfate in PDAM from 2023 to 2024 using Holt-Winter's method. It also aims to evaluate the optimum liquid aluminum sulfate chemical inventory policy using Q probabilistic inventory model with Normal and erlang probabilistic distributions in PDAM. The data was obtained from Tirta Musi PDA

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Stanislav, Dushkin, and Shevchenko Tamara. "APPLYING A MODIFIED ALUMINUM SULFATE SOLUTION IN THE PROCESSES OF DRINKING WATER PREPARATION." Eastern-European Journal of Enterprise Technologies 4, no. 10 (106) (2020): 26–36. https://doi.org/10.15587/1729-4061.2020.210096.

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This paper reports a study on the application of aluminum sulfate solution, modified by the magnetic field and electrocoagulation, in the processes of drinking water preparation. The modification of the coagulant solution makes it possible to intensify water purification processes, to reduce reagent consumption by 25–30 %. It has been found that a dose of the modified aluminum sulfate solution of 28–30 mg/dm<sup>3</sup> improves the efficiency of removal of suspended substances and coloration by 35–40 %. The dosage of the conventional reagent solution was

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8

Dushkin, Stanislav, Serhii Martynov, and Stanislav Dushkin. "The increasing efficiency of upflow clarifiers at the drinking water preparation." Acta Periodica Technologica, no. 51 (2020): 17–27. http://dx.doi.org/10.2298/apt2051017d.

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The article discusses the use of concentrated coagulant aluminum sulfate solution to increase the efficiency of upflow clarifiers for drinking water preparation. The water treatment using coagulants from roughly dispersed and colloidal contaminants is one of the most common methods. However, the reagent consumption is quite significant under adverse coagulation conditions (insufficient alkalinity, high chromaticity, and low water temperature), therefore this method requires improvement. It was established that the considered method for the increasing efficiency of upflow clarifiers of water su

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9

Bondar, I. I., V. V. Suran, O. Y. Minya, et al. "Synthesis of Surface Structures during Laser-Stimulated Evaporation of a Copper Sulfate Solution in Distilled Water." Ukrainian Journal of Physics 68, no. 2 (2023): 138. http://dx.doi.org/10.15407/ujpe68.2.138.

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The methodology, technique, and results of studies of the formation of films on the glass surface during the irradiation of water solutions of copper sulfate with the laser radiation are presented. We used the nanosecond radiation of an yttrium-aluminum garnet laser with the generation wavelength λ = 1 .06 μm. The studies used solutions with different concentrations of copper sulfate. The structure of the films obtained in this case is compared with the structure of the films obtained as a result of drying the solutions without exposure to a laser radiation. The resulting films have both order

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10

NAIMOV, N. A., U. MIRSAIDOV, J. R. RUZIEV, A. MURODIYON, and KH A. MIRPOCHAYEV. "PRODUCTION OF A PILOT BATCH OF CRUDE AND PURIFIED COAGULANT FROM KAOLIN CLAYS OF CHASHMA-SANG DEPOSIT BY SULFATIZATION." Herald of Technological University 27, no. 2 (2024): 50–56. http://dx.doi.org/10.55421/1998-7072_2024_27_2_50.

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The article presents the results of pilot studies on the technology of obtaining an experimental batch of crude and purified coagulant from kaolin clays of "Chashma-Sang" deposit by sulfatization method and testing of purified kaolin coagulant in laboratory conditions. Semi-industrial experience on sulfatization of 100 kg of kaolin clay crushed to particle size <0,1 mm was carried out in a small dryer of the building №12 of electrolysis production of "TALCo" JSC with application of 80 kg of concentrated sulfuric acid according to stoichiometric calculations at temperature 260-300 °C and dur

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11

Gomelya, Mykola, Yana Kryzhanovska, Iryna Makarenko, and Tetyana Shabliy. "Development of a method for processing concentrates from water desalination processes to obtain aluminum coagulants." Technology audit and production reserves 3, no. 3(83) (2025): 17–24. https://doi.org/10.15587/2706-5448.2025.329734.

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The process of processing concentrates and eluates formed during desalination of natural surface, artesian, and mine waters with increased mineralization by reverse osmosis and ion exchange methods has been studied. Specifically, this study examined the processes of processing sodium chloride solutions and mixtures of sodium chloride and sodium sulfate via electrodialysis, and obtaining alkaline and aluminum salt solutions, were examined. Aluminum salts were produced using AD-31 aluminum anodes. A stainless-steel plate of grade 12H18N10T was used as the cathode. The process was conducted at cu

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12

Taghiyev, Eldar I., Elšad Tagijev, and Lale Agajeva. "Cost Effective Technology of Alunite Ore Processing." International Journal of Chemistry 11, no. 1 (2019): 36. http://dx.doi.org/10.5539/ijc.v11n1p36.

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Soda-alkaline method of alunite ore processing includes crushing, grinding and enrichment (flotation) of the alunite ore. Enriched alunite ore, containing 50 - 60% of alunite, is roasted at temperatures between 520о &ndash; 620о С for 1 &ndash; 3 hours. Roasted alunite is further leached with sodium carbonate solution (5&ndash;20 %). Proportion of sodium carbonate for binding of SO3 aluminum sulfate in alunite accounts for 100 &ndash; 110 % of stoichiometric quantities. Leaching takes place at temperatures around 70 &ndash; 100о С for 0.5 &ndash; 2.0 hours. Solution of

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13

Sari, Mediana Puspita, Ilma Fadlilah, and Oto Prasadi. "Sintesis dan Karakteristik Aluminium Sulfat dari Limbah Foil Blister Obat." METANA 21, no. 1 (2025): 21–28. https://doi.org/10.14710/metana.v21i1.66878.

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Limbah foil blister obat merupakan salah satu bahan yang umumnya hanya menjadi sampah bagi masyarakat, padahal limbah aluminium jika berada bebas di lingkungan membutuhkan waktu lebih dari 100 tahun agar dapat terurai. Pemanfaatan kandungan aluminium dalam limbah blister obat menjadi aluminium sulfat merupakan salah satu alternatif dalam pengelolaan sampah anorganik. Penelitian ini bertujuan untuk mengetahui konsentrasi pelarut KOH optimal pada sintesis aluminium sulfat dari limbah foil blister obat berdasarkan karakteristik yang dihasilkan. Karakterisasi bahan baku limbah foil blister obat di

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14

Zhang, Wen-hui, Hua-wen Zheng, Jia-wei Qi, and Bao-tian Wang. "Experimental Study on the Feasibility of Using Water Glass and Aluminum Sulfate to Treat Complications in High Liquid Limit Soil Subgrade." Advances in Materials Science and Engineering 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/457978.

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The feasibility of using water glass and aluminum sulfate to treat high liquid limit soil subgrade diseases is studied through laboratory experiments, and the following results were observed. After improving the high liquid limit clay with water glass and aluminum sulfate, the liquid limit decreases, the plastic limit increases, and the plasticity index decreases. Compared with untreated soil, the clay content of the improved soil decreases, while the silt and coarse contents increase. The absolute and relative expansion rates of the improved soil are both lower than those of the untreated soi

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15

Husiatynska, N., O. Demenyuk, and S. Demenyuk. "Efficiency of using aluminum polyoxychloride for purification of drinking water." Scientific Works of National University of Food Technologies 28, no. 6 (2022): 125–36. http://dx.doi.org/10.24263/2225-2924-2022-28-6-14.

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The article presents the results of research of the effectiveness of aluminum-containing coagulants for the purification of water of the Dnipro River.The surface waters of the Dnipro River basin are characterized by a high content of organic compounds of natural origin, the presence of which determines the coloration of the water and significantly affects the course of its purification processes. If the aluminum sulfate reagent is used to purify such water, there is need to increase the dose of the reagent, which can cause an increase in the content of residual aluminum in the purified water.

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16

Senderowski, Cezary, Wojciech Rejmer, and Piotr Bilko. "Effect of Low Chloride and Sulfate Concentrations on Corrosion Behavior of Aluminum and Zinc Arc Thermal Sprayed Coatings." Coatings 12, no. 5 (2022): 653. http://dx.doi.org/10.3390/coatings12050653.

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The aim of this study was to determine the suitability of arc sprayed zinc and aluminum coatings as materials for protective coatings of different heating systems. The most aggressive chemical agents occurring in heating water are chloride and sulfate anions. Both ions are responsible for the corrosion of metals due to their high electronegativity and standard electrochemical potential. Water in heating systems should not contain more than 150 mg/L anions, including no more than 50 mg/L of chlorides and 100 mg/L of sulfates. To determine the corrosion resistance of three types of zinc and alum

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17

AlRubaye, Shahad F., Naseer A. Al Haboubi, and Hussein A. Al-Amili. "Removal of Sulfate and Iron from a Water Solution Using a New Flow Pattern in an Electrocoagulation Reactor." Tikrit Journal of Engineering Sciences 31, no. 2 (2024): 205–18. http://dx.doi.org/10.25130/tjes.31.2.20.

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This research examines the application of electrocoagulation (EC) by employing two water sources: river water and rejected water from a reverse osmosis system. To assess the impact of numerous factors on the removal efficiency of sulfate and iron, continuous flow experiments were conducted using bipolar and monopolar aluminum electrodes. The parameters studied included the number of electrodes (2, and 4) and flow rates (600, and 1000 L/h). The experimental findings revealed that increasing the number of electrodes improved the removal efficiency. Conversely, an increase in flow rate resulted i

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18

Dushkin, Stanislav, and Tamara Shevchenko. "Applying a modified aluminum sulfate solution in the processes of drinking water preparation." Eastern-European Journal of Enterprise Technologies 4, no. 10 (106) (2020): 26–36. http://dx.doi.org/10.15587/1729-4061.2020.210096.

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19

Lee, Aleum, and Kyoungrean Kim. "New Approach to Remove Heavy Metals from Wastewater by the Coagulation of Alginate-Rhamnolipid Solution with Aluminum Sulfate." Water 12, no. 12 (2020): 3406. http://dx.doi.org/10.3390/w12123406.

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This study was conducted using alginate-rhamnolipid (Alg-Rh) solutions on copper ions (Cu2+) as an application of coagulation with aluminum sulfate (Al2(SO4)3). The results show that solid phases were rapidly formed as an output of the reaction between Alg-Rh and Al2(SO4)3. It could be considered that the Al2(SO4)3 concentration and the existence of Cu2+ have an impact on forming hard coagulation, in that the total volume has been increased with increasing Al2(SO4)3 and the existence of Cu2+. The number of ions of aluminum (Al3+) and sulfate (SO42−) were also increased with Al2(SO4)3. The effi

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20

Bataineh, H., M. H. Al-Hamood, and A. M. Elbetieha. "Assessment of aggression, sexual behavior and fertility in adult male rat following long-term ingestion of four industrial metals salts." Human & Experimental Toxicology 17, no. 10 (1998): 570–76. http://dx.doi.org/10.1177/096032719801701008.

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1 The effect of long-term ingestion of the industrial metals salts, manganese sulfate, aluminum chloride, lead acetate and copper chloride was investigated on aggression, sexual behavior and fertility in male rat. Adult male rats ingested solutions of these salts along with drinking water at a concentration of 1000 p.p.m. for 12 weeks. 2 Male rat sexual behavior was suppressed after the ingestion of manganese sulfate, aluminum chloride, lead acetate and copper chloride. The ingestion of solutions of these salts markedly prolonged the intromission and ejaculation latencies. Aluminum chloride an

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Buelvas-Caro, Saúl David, Yelitza del Rosario Aguas-Mendoza, and Rafael Enrique Olivero-Verbel. "Clarification of superficial waters of the magdalena river using seeds of Tamarindus indica as bio-coagulants." Respuestas 25, no. 2 (2020): 170–76. http://dx.doi.org/10.22463/0122820x.2960.

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Biocoagulants have emerged as an environmentally friendly and efficient alternative to surface water clarification, allowing the use of agro-industrial waste as a bioavailable source for the treatment of high turbidity water. The objective of this research was to compare the efficiency in the surface water coagulation process of the Magdalena river using aluminum sulfate and tamarind seeds (Tamarindus indica) dissolved in aqueous solution and saline solution. The clarification process was carried out by testing jar, for this was performed an extraction of the hot and cold tamarind coagulant wh

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Shablovski, Vladimir, Alla Tuchkoskaya, Vladimir Rukhlya, and Olga Pap. "COAGULANT-FLOCCULANT FROM SECONDARY RESOURCES FOR TREATMENT OF INDUSTRIAL AND MUNICIPAL WASTEWATER." WATER AND WATER PURIFICATION TECHNOLOGIES. SCIENTIFIC AND TECHNICAL NEWS 30, no. 2 (2021): 27–33. http://dx.doi.org/10.20535/2218-930022021240165.

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Coagulants and flocculants are used almost at all drinking water supply facilities, wastewater treatment plants of municipal and industrial enterprises in Belarus and Ukraine to intensify and increase the efficiency of the processes of purification, clarification and discoloration of water and wastewater. Mainly as coagulants aluminum and iron salts are used, as flocculants - active silicic acid, starch, cellulose derivatives, polyacryloamide, etc.  Sulfuric acid treatment of alumina-containing raw materials allows, in the course of one process, to obtain a mixture of active substances -

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23

Liu, Hui Ping. "Hydrothermal Synthesis of Mesoporous Al₂O₃: Influences of pH Values and Aluminum Precursors." Advanced Materials Research 581-582 (October 2012): 396–400. http://dx.doi.org/10.4028/www.scientific.net/amr.581-582.396.

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The influences of pH values and aluminum precursors of “glucose-water-aluminum salt” reaction system on the hydrothermal synthesis of mesoporous Al2O3 were investigated. With the aid of scanning electron microscopy (SEM), electron diffraction spectrum (EDS) and X-ray diffraction (XRD) characterizations, we found that, under hydrothermal treatment at 180 °C for 20 h, aluminum nitrate (Al(NO3)3) could be used as the precursor to synthesize the spherical flower-like Al2O3 by using the synthesis solutions with different pH values in a certain scope; using aluminum chloride (AlCl3) as precursor, we

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24

Höhn, Daniela, Roberta Marins Nogueira Peil, Paulo Roberto Grolli, Lais Perin, and Douglas Schulz Bergmann Da Rosa. "Effect of preservative solutions on postharvest of Eustoma Grandiflorum floral stems during refrigerated storage." Brazilian Journal of Development 9, no. 12 (2023): 30699–708. http://dx.doi.org/10.34117/bjdv9n12-009.

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Preservative solutions contribute to flowers post-harvest quality and longevity, having different effects according to the species, cultivar, cold storage period and the solution composition. This work aimed to determine the preservative solution more effective on opening flower and longevity on flower cut stems of E. grandiflorum, submitted to two cold storage periods. The experiment was arranged in a 2x4x10 factorial, with two storage periods, five and ten days; four preservative solutions, water (100%); sodium hypochlorite (25 ml L-1) + sucrose (10%); aluminum sulfate (250 mg L-1) + sucrose

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Calderón, Roberto Robles, Hugo David Chirinos Collantes, Laida Vilca Calderón, and Jaqueline Heidy Chirre Flores. "EVALUATION OF THE COAGULANT EFFICIENCY OF MORINGA SEED (MORINGA OLEÍFERA) FOR THE WATER TREATMENT OF THE CHURÍN RIVER, PACHANGARA DISTRICT, LIMA, PERU." PERIÓDICO TCHÊ QUÍMICA 21, no. 46 (2024): 19–25. http://dx.doi.org/10.52571/ptq.v21.n46.2024_04_chirinos_pgs_19_25.pdf.

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Background: In the research, Moringa Oleifera - MO seeds were used in coagulation-flocculation processes, identifying the main properties it presents such as coagulant activity. Aims: The purpose of the research was to evaluate the coagulant and flocculating effect of moringa seed flour in the treatment of turbid water (with turbidity between 700 NTU and 800 NTU). Methods: The experimental tests were carried out under the following conditions: shelled moringa seed flour in NaCl solution, 1 M, it was observed that it has no effect on the clarification of turbid water and modifies the pH to 4.47

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Heydarov, A. A. "STUDY OF ALUMINUM EXTRACTION AND IRON REMOVAL FROM KAOLIN CLAYS USING TWO-STAGE TREATMENT WITH SULPHURIC ACID." Azerbaijan Chemical Journal, no. 1 (February 10, 2025): 139–47. https://doi.org/10.32737/0005-2531-2025-1-139-147.

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This paper presents the results of research on the treatment of kaolin clay with sulfuric acid of various concentrations. The goal of the initial stage of research was to determine the optimal conditions affecting the iron removal process. The degree of extraction of Fe, Al, Si in solution was determined from solid samples obtained during the leaching process using X-ray phase analysis (XRD), IR spectroscopy, thermal, and also from the results of EDS analyses. The results show that processing clay with a 5% solution of sulfuric acid in an autoclave at a temperature of 125-130º C, at a pressure

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Bond, WJ, CJ Smith, JAE Gibson, and IR Willett. "The effect of sulfate and fluoride on the mobility of aluminum in soil." Soil Research 33, no. 6 (1995): 883. http://dx.doi.org/10.1071/sr9950883.

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The effect of the coordinating anions sulfate and fluoride on the soil pH and Al concentration, and on the transport of Al, was studied during unsaturated how in columns of an Oxisol. The soil was infiltrated with 0.1M NaCl, 1 or 10 mM SO2-4 , 1 mM F-, 1 mM Al, 1 mM Al with 1 or 10 mM SO2-4 , and 1 mM Al with 1 or 10 mM F- in a background of 0.1 M NaCl. The pH of the infiltrating solution was adjusted to 3.0. The inflowing solutions all caused a decrease in pH (relative to the initial value) near the column inlet and an increase further away from the inlet. The distance over which the change n

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Ganjidoust, Hossein, Kenji Tatsumi, Shinji Wada, and Mitsuo Kawase. "Role of peroxidase and chitosan in removing chlorophenols from aqueous solution." Water Science and Technology 34, no. 10 (1996): 151–59. http://dx.doi.org/10.2166/wst.1996.0251.

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Chlorophenols removal from industrial wastewater by horseradish peroxidase and coagulant was investigated. It was found that an enzymatic reaction time of less than one hour was enough for the reaction to reach 95% completion. Chitosan, which is a natural coagulant, was an effective coagulant as compared to mineral coagulants such as aluminum sulfate (ALUM), hexamethylene diamine epichlorohydrin polycondensate (HX), polyacrylamide (PAM), and polyethyleneimine (PEI). A combination of 0.4 U/mL peroxidase to 2 ppm chitosan along with 0.8 mM of hydrogen peroxide resulted in over 95% chlorophenol r

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Ivanova, I., A. Popov, A. Chukhno, and S. Kovalkova. "A bioassay of the toxic effects of aluminum chloride and aluminum sulfate using Auloforus (Dero furcata)." IOP Conference Series: Earth and Environmental Science 937, no. 2 (2021): 022021. http://dx.doi.org/10.1088/1755-1315/937/2/022021.

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Abstract The analysis of the toxicity of aluminum salts is determined by the fact that aluminum cation is contained in drinking water, artificial dyes and additives, medicines, vaccines, aerosols, and there is also a correlation between the concentration of aluminum ion in brain tissues and clinical manifestations of Alzheimer’s disease. The article presents the results of biotesting the toxic effects of aluminum chloride and sulfate using Aulophorus (Dero furcata). Currently, the methods of bioassay do not have a generally recognized and standardized system of biological analysis, there are n

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Bondar’, I. I., V. V. Suran, A. Y. Minya, A. K. Shuaibov, and V. M. Кrаsilinets. "Preparation of Films by Irradiation of a Copper Sulfate Aqueous Solution by Infrared Laser Radiation." Elektronnaya Obrabotka Materialov 58, no. 3 (2022): 13–20. http://dx.doi.org/10.52577/eom.2022.58.3.13.

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The methodology, technique, and results of studies of the formation of films on the glass surface during laser irradiation of water solutions of copper sulfate with radiation are presented. The nanosecond radiation of an yttrium-aluminum garnet laser with a generation wavelength λ = 1.06 μm was used. Solutions with different concentrations of copper sulfate were applied. The structure of the films obtained in this case was compared with the structure of the films obtained as a result of drying solutions without exposure to laser radiation. The resulting films have both ordered and disordered s

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31

Kutina, Angelina A., Elena G. Sumina, and Varseniya Z. Uglanova. "Comparison of two types of mobile phases for the determination of B vitamins by thin layer chromatography." Izvestiya of Saratov University. Chemistry. Biology. Ecology 23, no. 4 (2023): 370–81. http://dx.doi.org/10.18500/1816-9775-2023-23-4-370-381.

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Thin-layer chromatography (TLC) has been used to study the influence of a number of factors (the nature of the stationary phase, the nature and concentration of the organic solvents and surfactants, the pH of the buffer solution) on the chromatographic characteristics of B vitamins: B 1 (thiamine), B6 (pyridoxine), B12 (cyanocobalamin). The stationary phases were plates with polar (Sorbfil on a polymer (highperformance plates, HTLC) and aluminum substrates), weakly polar (Polyamide-6), and nonpolar (RP-18 on an aluminum substrate) sorbents. As micellar mobile phases – micellar solutions of cet

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Ivchenko, Ol'ga, and Kirill Pankin. "TESTS OF FIRE EXTINGUISHING ABILITY OF ALUMINUM HYDROGEL WHEN EXTINGUISHING MODEL NATURAL GROUND FIRES." Forestry Engineering Journal 10, no. 1 (2020): 38–49. http://dx.doi.org/10.34220/issn.2222-7962/2020.1/4.

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Extinguishing natural fires largely depends on the effective use of fire extinguishers by firefighters. Nevertheless, there are objective limits to the fire extinguishing ability of known substances and materials, which cannot be overcome by either tactical or technological methods. In the work, a method for extinguishing ground fires using aluminum hydrogels with different concentrations as fire extinguishing compositions is proposed, which makes it possible to simultaneously realize three extinguishing methods: cooling, insulation, and combustion inhibition. Investigation of fire extinguishi

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Yukhnevskiy, P. I. "THERMOCHEMISTRY OF INTERACTION REACTIONS FOR SODIUM AND ALUMINUM SULPHATES WITH COMPONENTS OF HYDRATING PORTLAND CEMENT." Science & Technique 17, no. 2 (2018): 142–45. http://dx.doi.org/10.21122/2227-1031-2018-17-2-142-145.

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Chemical additives are widely used in the technology of concrete with the purpose to solve various problems and sulphate-containing additives-electrolytes are also used as accelerators for setting and hardening of cement. Action mechanism of additive accelerators for setting and hardening of cement is rather complicated and can not be considered as well-established. An influence of sulfate-containing additives such as sodium sulfate is reduced to acceleration of cement silicate phase hydration by increasing ionic strength of the solution. In addition to it, exchange reactions of anion additive

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Parmar, Madan L., Ch V. Nageshwara Rao, and Suresh Chand Attri. "Partial Molar Volumes of Some Multicharged Electrolytes in Aqueous Dimethylformamide at Various Temperatures." Collection of Czechoslovak Chemical Communications 63, no. 4 (1998): 507–14. http://dx.doi.org/10.1135/cccc19980507.

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Partial molar volumes of ammonium aluminium sulfate and potassium aluminium sulfate in DMF-water mixtures (5-20 wt.% of DMF) have been determined from solution density measurements at various temperatures and electrolyte concentrations. The data were evaluated by using Masson equation and the obtained parameters were interpreted in terms of ion-solvent and ion-ion interactions. Both electrolytes have been found to act as the structure makers/promotors in DMF-water systems.

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Hecini, Linda, and Samia Achour. "Incidence of Calcic, Sulfates and Phosphates Salts on the Coagulation-Flocculation of Organic Compounds by Aluminium Sulfate." International Journal of Engineering Research in Africa 34 (January 2018): 59–69. http://dx.doi.org/10.4028/www.scientific.net/jera.34.59.

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The objective of this work is to evalute the coagulation-flocculation efficiency of the aluminum sulfate for the elimination of aromatic organic molecules (phenylalanine and catechol) in the presence of mineral salts of Ca2+, SO42-and PO43-.Trials were conducted on the one hand on synthetic solutions of aromatic compounds in distilled water enriched by ions of calcium, sulphates and phosphate ions introduced in various forms (CaCl2; CaSO4; MgSO4; Na2SO4; NaH2PO4; KH2PO4), and on the other hand on Algerian drilling waters of different physicochemical characteristics. Results show that the addit

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Anderson, Geoffrey C., Shahab Pathan, David J. M. Hall, Rajesh Sharma, and James Easton. "Short- and Long-Term Effects of Lime and Gypsum Applications on Acid Soils in a Water-Limited Environment: 3. Soil Solution Chemistry." Agronomy 11, no. 5 (2021): 826. http://dx.doi.org/10.3390/agronomy11050826.

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Aluminum (Al) toxicity imposes a significant limitation to crop production in South Western Australia. This paper examines the impact of surface-applied lime and gypsum on soil solution chemistry in the short term (1 year) and the long-term (10 years) in water limited environments. In the experiments, we measured soil solution chemistry using a paste extract on soil profile samples collected to a depth of 50 cm. We then used the chemical equilibrium model MINTEQ to predict the presence and relative concentrations of Al species that are toxic to root growth (Al associated with Al3+ and AlOH2 or

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Olabimtan, Olabode H., Oluyinka O. Akinlotan, Joyce Omohu, Martins K. Ukpong, and Bayo H. Yekeen. "Synthesis and Evaluation of Alum Crystals from Waste Aluminum Foils in Turbid Water Treatment." Journal of Innovative Research 1, no. 1 (2023): 27–34. http://dx.doi.org/10.54536/jir.v1i1.1528.

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The disposal of waste aluminum foil is a significant environmental concern due to its non-biodegradable nature and potential to contaminate the surrounding ecosystem. In this study, we synthesized alum crystals from waste aluminum foil and evaluated their potential as an effective adsorbent for water treatment. The synthesis process involved the reaction of crushed aluminum foil with sulfuric acid and sodium hydroxide to form aluminum hydroxide, which was then converted to alum crystals through a precipitation reaction. Chemical tests were conducted to confirm the presence of different ions in

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Lee, Jae-Ean, Jae-Won Kim, Je-Hyun Lee, Yeon-Gil Jung, and Ungyu Paik. "Mullite Precursor Synthesis in Aqueous Conditions: Dependence of Mullite Crystallization and Grain Size and Morphology on Solution pH and Precursor Salt." Journal of Materials Research 19, no. 4 (2004): 1133–38. http://dx.doi.org/10.1557/jmr.2004.0147.

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The synthesis behavior of mullite in an aqueous system was investigated. Two kinds of aluminosilicate precursor sols were prepared by the dissolution of two kinds of salt (aluminum chloride hexahydrate, AlCl3·6H2O, and aluminum sulfate with 14–18 molecules of water, Al2[SO4]3·14–18H2O) into the mixture of colloidal silica sol. The effects of the solution pH, which was controlled by addition of ammonium hydroxide (NH4OH), and the type of aluminum salt on the mullite crystallization and the grain size and morphology in the sintered materials are discussed in this paper. It has been discovered th

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Шуаибов, А.К., М.П. Чучман та Л.В. Месарош. "Электрические характеристики тлеющего разряда в воздухе над поверхностью раствора сульфата алюминия в воде". Elektronnaya Obrabotka Materialov 53, № 3 (2017): 41–46. https://doi.org/10.5281/zenodo.1053521.

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The paper presents the current-voltage characteristics of the magnitude of the cathode potential drop, the dependencies of the full and specific power pumped into plasma on the density of electrons depending on the current for the glow discharge in air at atmospheric pressure with the cathode on the base of 1–10% solution of aluminum sulfate in distilled water. The distance from the electrolytic liquid cathode to the metal anode varied in the range of 1–10 mm, at an average discharge current of 8–36 mA. The discharge is promising for the synthesis of nanostructures of aluminum and aluminum oxi

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Sales, Thais Silva, Patrícia Duarte de Oliveira Paiva, Guilherme Mariano Manfredini, Ângela Maria Pereira do Nascimento, and Michele Valquíria dos Reis. "Water relations in cut calla lily flowers maintained under different postharvest solutions." Ornamental Horticulture 27, no. 2 (2021): 126–36. http://dx.doi.org/10.1590/2447-536x.v27i2.2235.

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Abstract The use of chemicals in storage solutions has proved beneficial for the postharvest conservation of cut flowers. However, the effect of these solutions on the water relations of some species is still unknown. Therefore, the objective of the present investigation was to evaluate the water relations in calla lily flowers harvested at different stages and maintained under postharvest solutions with different chemicals. The flower stems were harvested in two stages of spathe opening: the early stage (cartridge) and the 1/3 flower opening stage. The flower stems were dipped in solutions wi

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Wang, Junkai, Laishi Li, Yuzheng Wang, and Yusheng Wu. "Reactive Crystallization Kinetics Study of Boehmite in Ammonia Solution by Adding Ammonium Aluminum Sulfate." Science of Advanced Materials 16, no. 1 (2024): 25–37. http://dx.doi.org/10.1166/sam.2024.4586.

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As an important intermediate product in new techniques for extracting alumina from coal fly ash, boehmite is obtained by the reaction between ammonium aluminum sulfate and ammonia. The reactive crystallization kinetics of boehmite is investigated using a continuous steady-state method. The Mydlarz and Jones (MJ3) models are in considerable agreement with the experimental results by a non-linear regression method; furthermore, crystal nucleation and growth rate equations are proposed. The results revealed that the suspension density and agitation rates present considerable influence on nucleati

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Sun, Bai, Fangwen Xu, Fei Liu, et al. "Study on adsorption characteristics and regeneration effect of iron - based alumina composites." E3S Web of Conferences 136 (2019): 06030. http://dx.doi.org/10.1051/e3sconf/201913606030.

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In this paper, an iron-based alumina composite was synthesized by modifying activated alumina with ferric chloride. The adsorption performance of iron-based alumina composite modified with 15% ferric chloride solution reached a certain peak. At lower initial fluoride concentration, the amount of fluoride treated by this composite is much more than that of water samples with higher initial fluoride concentration. To some degree, the slower flow rate of fluoride solution, the better adsorption performance of adsorbent. The iron-based alumina composite expressed a better performance of fluoride a

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Dushkin, Stanislav. "Study of the process of activation of aluminum sulfate coagulant solutions during filtration on rapid filters." International Journal of Chemistry, Mathematics and Physics 7, no. 6 (2023): 01–06. http://dx.doi.org/10.22161/ijcmp.7.6.1.

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This study focuses on the treatment of drinking water with activated aluminium sulphate solutions at rapid filters. Experimental investigations were conducted to assess the impact of activated aluminium sulphate solutions on the duration of the protective effect of filter loading and the time taken to reach the maximum allowable head loss. The prediction of drinking water treatment efficacy using activated aluminium sulphate solutions is outlined and compared with experimental data.

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Tian, Xiao Wei, Chun Ying Han, Li Dan Zhang, Wei Zhao Du, and Zeng He Li. "A Study on the Preparation and Flocculation Properties of Boracic Poly-Aluminum-Ferric-Silicate." Advanced Materials Research 726-731 (August 2013): 3025–29. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.3025.

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The boracic poly-aluminum-ferric-silicate (B-PSAF) coagulant was prepared by water solution co-polymerization method, which was synthesized from sodium silicate, aluminum sulfate, ferric chloride and sodium borate. In addition, the best molar ratio of boron and silicon was determined by single factor process. The micro-morphology and structure of B-PSAF were studied by scanning electronic microscope (SEM) and Fourier transform infrared spectrum (FT-IR). It has been studied the operation of B-PSAF as the flocculating agent, the dosage and its effects on the flocculability. Experiments show that

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Santos, P. R. M., A. Johny, C. Q. Silva, et al. "Improved Metal Cation Optosensing Membranes through the Incorporation of Sulphated Polysaccharides." Molecules 27, no. 15 (2022): 5026. http://dx.doi.org/10.3390/molecules27155026.

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Optosensing chitosan-based membranes have been applied for the detection of heavy metals, especially in drinking water. The novelty of this study is based on the use of sulphated polysaccharides, in such optosensing membranes, aiming at an improved analytical performance. The sulphated polysaccharides, such as ulvan, fucoidan and chondroitin sulfate, were extracted from by-products and wastes of marine-related activities. The membranes were developed for the analysis of aluminum. The variation in the visible absorbance of the sensor membranes after the contact between the chromophore and the a

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Rosińska, Agata. "Influence of Selected Coagulants of Indicator and Dioxin-Like PCB Removal from Drinking Water." Ecological Chemistry and Engineering S 24, no. 1 (2017): 41–51. http://dx.doi.org/10.1515/eces-2017-0004.

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Abstract The aim of the research was to compare selected coagulants efficiency in indicator and chosen dioxin-like PCB removal from surface water. As coagulants, there were used aluminium sulfate and 5 hydrolyzed polyaluminium chlorides, with trade names: PAX-XL1, PAX-XL10, PAX-XL19, PAX-XL60, PAX-XL69. For the research, surface water was used, collected from dam reservoir. The water composition was modified with standard mixtures PCB MIX24 and MIX13, in order to obtain concentration of each congener equal to 300 ng/dm3. The PCB MIX24 mixture was composed of indicator congeners solution: 28, 5

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Kurniawan, Hendra, and Nurul Fadillah. "The Effect of pH Variations and Aluminum Sulfate Coagulant Dosage on Reducing Turbidity in Salupangkang Tua River Water." Journal of Green Chemical and Environmental Engineering 1, no. 1 (2025): 20–27. https://doi.org/10.63288/jgcee.v1i1.3.

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This research was carried out using coagulation and flocculation methods. By using a varying pH series, namely 1 – 14 and also varying coagulant doses, namely 10 ppm, 20 ppm, 30 ppm and 40 ppm. The solution whose pH has been adjusted is then stirred using a flocculator with the addition of a coagulant for fast stirring at 100 rpm for 3 minutes, then a flocculant is added for slow stirring at 30 rpm for 3 minutes. After stirring, the turbidity of the solution was measured using a turbidimeter. The research show that pH and coagulant dosage parameters significantly influence the coagulation and

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Kuzin, Evgenii N., and Andrey B. Fadeev. "Preparation of complex titanium-containing coagulants from large-scale mineral concentrates and their use in wastewater treatment." Bulletin of the Tomsk Polytechnic University Geo Assets Engineering 335, no. 4 (2024): 34–42. http://dx.doi.org/10.18799/24131830/2024/4/4599.

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Relevance. Development of new, highly effective reagents for treatment of wastewater of various origins is a complex and extremely important task. An equally pressing issue remains the development of technologies for processing large-scale mineral products, which currently have not found an economically feasible technology for their processing and have received the status of “waste”. The development of a technology for producing reagents using waste as a raw material will not only have an economic effect but will also significantly minimize the level of negative impact on the environment and t

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AL Abdiy, Wadees Y. O., and Ali J. J. AL Shammary. "Removal of Turbidity and Congo Red Dye from Aqueous Solution by Coagulation-Flocculation Process." Tikrit Journal of Engineering Sciences 32, no. 2 (2025): 1–9. https://doi.org/10.25130/tjes.32.2.4.

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Water pollution is currently one of the most serious problems facing humanity. In this regard, making this natural resource usable and unpolluted is of great social and economic importance. However, eliminating organic pollutants has received special attention to purify water waste. Chemical coagulation procedures are used by determining the optimal speed and dose of coagulants required to remove turbidity and dye from an aqueous solution while fixing pH and temperature to optimal values based on previous research. Aluminum sulfate (alum) and ferrous sulfate 〖"Fe" 〗_"2 " 〖"(SO" 〗_"4" ")" _(3 )

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Ogata, Fumihiko, Saki Kawamoto, Ayako Tabuchi, et al. "Feasibility of Nickel–Aluminum Complex Hydroxides for Recovering Tungsten Ions from Aqueous Media." Sustainability 14, no. 6 (2022): 3219. http://dx.doi.org/10.3390/su14063219.

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In this study, the adsorption and/or desorption capacity of tungsten ions using nickel–aluminum complex hydroxides was assessed. Nickel–aluminum complex hydroxides at various molar ratios, such as NA11 were prepared, and the adsorption capacity of tungsten ions was evaluated. Precisely, the effect of temperature, contact time, pH, and coexistence on the adsorption of tungsten ions in the water layer was demonstrated. Among the nickel–aluminum complex hydroxides at various molar ratios, the adsorption capacity onto NA11 was the highest of all adsorbents. The sulfate ions in the interlayer of NA

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