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Автор: Grafiati
Опубліковано: 30 травня 2022
Оновлено: 31 травня 2022

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Статті в журналах з теми "Waste of alumina production"

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Khlystov, A. I., S. V. Sokolova, M. N. Baranova, D. I. Vasilieva, and Yu A. Kholopov. "Prospects for Using Alumina-Containing Industrial Waste in Cement Production." Ecology and Industry of Russia 25, no. 7 (July 20, 2021): 13–19. http://dx.doi.org/10.18412/1816-0395-2021-7-13-19.

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Local industrial waste from the Samara region (aluminochrome waste of petrochemicals, aluminium sludge of non-ferrous metallurgy) has been studied for use in the production of fire-resistant lining materials with enhanced operational characteristics. The composition and properties of industrial wastes formed at the Samara Metallurgical Plant and their application for obtaining active liquid-steel binder compositions have been studied. The dependence of these compositions refractoriness on the type of hardener and the amount of additive has been analyzed.
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Vukšić, Milan, Irena Žmak, Lidija Ćurković, and Danko Ćorić. "Effect of Additives on Stability of Alumina—Waste Alumina Suspension for Slip Casting: Optimization Using Box-Behnken Design." Materials 12, no. 11 (May 29, 2019): 1738. http://dx.doi.org/10.3390/ma12111738.

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The green machining of alumina (Al2O3) green bodies generates a certain amount of waste alumina powder. Waste alumina ceramic powder should be disposed of as non-hazardous waste in a legally compliant manner. The influence of additives on the stability of 70 wt.% (≈40 vol.%) alumina—waste alumina water-based suspension was investigated in the presented research. A Box-Behnken three-factor response surface design was used for the preparation of stable highly-concentrated suspensions with the addition of three additives. The optimal amount of each additive was selected according to the obtained results of minimal apparent viscosity: 0.05 wt.% Tiron as dispersant, 0.1 wt.% poly (vinyl alcohol) as binder and 0.2 wt.% magnesium aluminate spinel as abnormal grain growth inhibitor. The analysis of variance was used to identify the contribution of each additive. The zeta potential and sedimentations tests were performed to confirm the suspension stability measurements at different pH values. Alumina particles were optimally dispersed at pH values between 8 and 11. According to the results, the investigated composition of 20 wt.% waste alumina powder (weight content, dry alumina powder), with the addition of optimal amounts of additives, shows a possible application in the production of ceramics by slip casting.
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Pavlova, Irina, Anna Getman, and Elena Farafontova. "The Way of Utilization of Fused Corundum Dust Waste for the High-Alumina Chamotte Production." Solid State Phenomena 316 (April 2021): 100–104. http://dx.doi.org/10.4028/www.scientific.net/ssp.316.100.

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High-alumina chamotte with an Al2O3 content of more than 62% is a desirable raw material to produce high-alumina refractories. The production of high-alumina aggregate (chamotte) is carried out in various ways, using plastic or semi-dry technology for briquetting from commercial alumina and refractory clay. When grinding fused corundum, the dust containing 93–95% Al2O3 is formed; it is currently a substandard material. It is of interest to involve this waste product in the production of high-alumina chamotte. The developed technology allows obtaining the desirable material and utilizing production waste. In this project the briquetting parameters to produce high-alumina chamotte using corundum waste and refractory enriched kaolin were determined.
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Ribeiro, Catarina, Lucinda Gonçalves, and Francisco Delmas. "Highly Reactive Alumina Production from Spent Baths." Materials Science Forum 514-516 (May 2006): 1716–21. http://dx.doi.org/10.4028/www.scientific.net/msf.514-516.1716.

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Hydrated alumina Al2O3.3H2O was produced from spent alkaline baths resulting from aluminium transformation industry. Batch and continue laboratory and pilot tests were performed in order to assess technical viability of producing reactive alumina directly from the baths by a precipitation/crystallization process and at the same time of recovering and recycling the associated sodium hydroxide to the extrusion process. The influence of three parameters: time, seed quantity and dilution were evaluated using a statistical method. It was found that time and dilution are the factors which have more influence on aluminium precipitation yield, allowing to reach values greater than 45%. The hydrated aluminas obtained were characterized by granulometric analysis, scanning electron microscopy and x-ray diffraction. Therefore, apart from minimizing the environmental impact of the aluminium transformation industry by reducing a waste quantity, it is obtained a marketable sub-product and recovered a raw material (NaOH), which can be recycled within the aluminium transformation process.
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Chawakitchareon, Petchporn, and Plengprapkun Kingthong. "Utilization of Alumina Waste and Silica Waste for Geopolymer Production." Engineering Journal 20, no. 4 (August 1, 2016): 51–57. http://dx.doi.org/10.4186/ej.2016.20.4.51.

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Das, B. R., B. Dash, B. C. Tripathy, I. N. Bhattacharya та S. C. Das. "Production of η-alumina from waste aluminium dross". Minerals Engineering 20, № 3 (березень 2007): 252–58. http://dx.doi.org/10.1016/j.mineng.2006.09.002.

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Yadav, Virendra Kumar, and Madhusudan Hiraman Fulekar. "Advances in Methods for Recovery of Ferrous, Alumina, and Silica Nanoparticles from Fly Ash Waste." Ceramics 3, no. 3 (September 22, 2020): 384–420. http://dx.doi.org/10.3390/ceramics3030034.

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Fly ash or coal fly ash causes major global pollution in the form of solid waste and is classified as a “hazardous waste”, which is a by-product of thermal power plants produced during electricity production. Si, Al, Fe Ca, and Mg alone form more than 85% of the chemical compounds and glasses of most fly ashes. Fly ash has a chemical composition of 70–90%, as well as glasses of ferrous, alumina, silica, and CaO. Therefore, fly ash could act as a reliable and alternative source for ferrous, alumina, and silica. The ferrous fractions can be recovered by a simple magnetic separation method, while alumina and silica can be extracted by chemical or biological approaches. Alumina extraction is possible using both alkali- and acid-based methods, while silica is extracted by strong alkali, such as NaOH. Chemical extraction has a higher yield than the biological approaches, but the bio-based approaches are more environmentally friendly. Fly ash can also be used for the synthesis of zeolites by NaOH treatment of variable types, as fly ash is rich in alumino-silicates. The present review work deals with the recent advances in the field of the recovery and synthesis of ferrous, alumina, and silica micro and nanoparticles from fly ash.
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., S. T. El Sheltawy, N. F. Abdel Salam ., and F. I. Barakat . "Acidic Reaction of Waste Aluminum Foil for Alumina Production." Volume 5,Issue 1, 2019 5, no. 1 (April 3, 2019): 325–27. http://dx.doi.org/10.30799/jespr.163.19050104.

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Makhotkina, E. S., O. S. Ponomareva, and L. G. Kolyada. "Resource-Saving Technology of Recycling of Wastes of Secondary Aluminium Production in a Blast Furnace in the Process of Aluminous Slag Smelting." Solid State Phenomena 265 (September 2017): 1081–85. http://dx.doi.org/10.4028/www.scientific.net/ssp.265.1081.

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The paper considers the theoretical and practical aspects of recycling of secondary aluminium production wastes by adding them to the burden mix in the process of aluminous slag production (from bauxites) in the blast-furnace smelting operation. The comparative analysis of bauxite chemical composition and the secondary aluminium production waste was carried out and the feasibility of using secondary aluminium production waste as a raw material for blast-furnace smelting was studied. A mathematical model was presented to obtain aluminous slag by blast-furnace smelting of bauxites with their partial substitution with the secondary aluminium production waste; this model makes it possible to calculate the rational mixture of burden materials when aluminous slag is produced in a blast furnace taking into account chemical composition of the materials used and the required content of oxides of aluminium, calcium and silicon in the final slag. The high-alumina slag formed when the wastes of secondary aluminium production are used in burden materials is characterized by low gas content during slag tapping (in spite of the elevated temperature) and by high flowability. The laboratory tests of binding properties of the high-alumina slag obtained in a blast furnace using wastes of secondary aluminium production, which were carried out by the plant laboratory, showed that the cements produced from this slag have satisfactory strength characteristics, although their setting time is somewhat longer. Recycling of slag dumps of aluminium production will make it possible to obtain new sources of raw materials, enhance the technology of handling and transportation of materials from man-made mineral formations to recycling plants without increasing the environmental load.
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Kadyrova, Z. R., R. Kh Pirmatov, and A. A. Eminov. "Perspective raw materials of Uzbekistan for the production of refractory materials." NOVYE OGNEUPORY (NEW REFRACTORIES), no. 7 (October 29, 2019): 8–11. http://dx.doi.org/10.17073/1683-4518-2019-7-8-11.

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The results of studies of promising raw material resources of Uzbekistan (enriched kaolins, bauxite-like rock, highalumina waste from the gas processing industry) to obtain high-alumina aggregates are presented. It is established that these raw materials in terms of their physico-chemical indicators meet the requirements for aluminosilicate and high-alumina materials used in metallurgical units. Ref. 13. Tab. 3.
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Дисертації з теми "Waste of alumina production"

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Beheshti, Reza. "Sustainable Aluminum and Iron Production." Doctoral thesis, KTH, Kemi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-196547.

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Aluminium recycling requires 95% less energy than primary production with no loss of quality. The Black Dross (BD) produced during secondary aluminium production contains high amounts of water-soluble compounds, therefore it is considered as a toxic waste. In the present work, salt removal from BD by thermal treatment has been investigated in laboratory scale. The optimum conditions for treatment were established, i.e., temperature, gas flow rate, holding time, rotation rate, and sample size. The overall degree of chloride removal was established to increase as a function of time and temperature. Even Pretreated Black Dross (PBD) was evaluated as a possible raw material for the production of a calcium aluminate-based ladle-fluxing agent to be used in the steel industry. The effects of different process parameters on the properties of the produced flux were experimentally investigated, i.e. CaO/Al2O3 ratio, temperature, holding time, and cooling media. The utilization of PBD as the alumina source during the production of a calcium aluminate fluxing agent shows promising results. The iron/steel industry is responsible for 9% of anthropogenic energy and process CO2 emissions. It is believed that the only way to a long-term reduction of the CO2 emissions from the iron/steel industry is commercialization of alternative processes such as Direct Reduction (DR) of iron oxide. Detailed knowledge of the kinetics of the reduction reactions is, however, a prerequisite for the design and optimization of the DR process. To obtain a better understanding of the reduction kinetics, a model was developed step-by-step, from a single pellet to a fixed bed with many pellets. The equations were solved using the commercial software COMSOL Multiphysics®. The final model considers the reaction rate and mass transfer inside the pellet, as well as the mass transfers and heat transfer in the fixed bed. All the models were verified against experimental results, and where found to describe the results in a satisfying way.

QC 20161128

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Fridrich, Jakub. "Cihelný recyklát jako surovina pro výrobu pálících pomůcek pro cihlářský průmysl." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2019. http://www.nusl.cz/ntk/nusl-401935.

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The focus of this thesis is the study of behavior of brick waste in the mixture with high alumina cement. The result of this research should be a draft of a composition and production process for material that could partly or fully substitute forging accessories in the brick production industry. The aim of this work is to verify the use of brick waste for such purpose. Usage of brick waste for refractories can help the current long-term effort for wasteless production processes.
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Носік, Вікторія Вікторівна. "Модифікований вуглецевмісний сорбент для глибокого вилучення органічних сполук". Master's thesis, Київ, 2018. https://ela.kpi.ua/handle/123456789/23010.

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Наявність органічних сполук в стічних водах, що надходять у водойми, повинна бути знижена до надзвичайно малих концентрацій для попередження негативних екологічних наслідків. Глибоке очищення води від органічних речовин може бути здійснено шляхом застосування адсорбційної технології. На сьогоднішній день дослідження можливостей синтезу сорбентів з відходів глиноземних виробництв для очищення стічних вод набувають все більшої популярності. Метою магістерської роботи є модифікування поверхні активованого вугілля та використання його в технології глибокого очищення стічних вод фармацевтичного виробництва. Основними завданнями магістерської дисертації є:  вибір методу модифікування та встановлення основних параметрів процесу модифікування;  виявлення типу модифікатору;  встановлення морфології та складу отриманого зразку модифікованого вугілля;  дослідження структурно-сорбційних характеристик поверхні модифікованого активованого вугілля;  виявлення основних параметрів (тривалість процесу, температурний режим, концентрація модифікатору) сорбційного процесу;  дослідження ефективості застосування отриманих зразків модифікованого вугілля для очищення води від левамізолу, норсульфазолу та стрептоциду;  створення технологічної схеми глибокого очищення води від левамізолу, норсульфазолута стрептоциду. Об’єкт дослідження – процес модифікації вуглецевмісного сорбенту, дослідження закономірностей його застосування для глибокого вилучення органічних сполук. Предмет дослідження – активоване вугілля, «червоний шлам» Миколаївського глиноземного заводу, модельні розчини фармацевтичних стічних вод (левамізолу, норсульфазолу та стрептоциду). Синтезовано сорбент з використанням відходів глиноземного виробництв та перевірено його ефективністі в порівнянні з торговою маркою активованого вугілля. Встановлено, що ефективнішим є модифіковане активоване вугілля. Модифікування поверхні АВ призводить до збільшення сорбційної ємності сорбенту. Результати досліджень відображено у матеріалах міжнародних конференцій.
To prevent negative environmental effects the presence of synthetic organic compounds in sewage that enters into ponds should be reduced to extremely low concentrations. Deep water purification from toxic organic substances can be done by applying adsorption technology. Today research opportunities synthesis of sorbents from waste alumina production for wastewater treatment are becoming more popular. The purpose of the master's work is to modify the surface of activated carbon and use it in the technology of deep sewage treatment of pharmaceutical production. The main tasks of the master's thesis are:  the choice of the modification method and the establishment of the main parameters of the modification process;  detection of modifier type;  establishment of morphology and composition of the obtained sample of modified coal;  research of structural–sorption characteristics of the surface of modified activated carbon;  establishment of the basic parameters (duration of the process, temperature mode, concentration of the modifier) of the sorption process;  checking the effectiveness of the application of the obtained samples of modified coal for water purification from levamisole, norsulfazolum and streptocide;  creation of a technological scheme of deep water purification from levamisole, norsulfazolum, streptocide. The object of the study – the process of modification of carbon-containing sorbent, the study of the laws of its application for the deep removal of organic compounds. The subject of research - activated carbon, "red mud" of Mykolayiv Alumina Factory, model solutions of pharmaceutical wastewater (levamisole, norsulfazole and streptocide) The sorbent was synthesized using waste from alumina production and its efficiency compared to the trademark of activated carbon was checked. Found that the modified activated carbon is more efficient. Modification of the AC surface leads to an increase sorbent capacity of the sorbent. The results of the research were made public at international conferences.
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Kerhervé, Gwilherm. "Production and properties of metal clusters on alumina." Thesis, University of Liverpool, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288300.

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Lucas, Carlos Krus Galvão. "Biogas production from potato peel waste." Master's thesis, Faculdade de Ciências e Tecnologia, 2014. http://hdl.handle.net/10362/12337.

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Uncu, Oya Nihan. "Optimization Of Bioethanol Production From Kitchen Waste." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/3/12611373/index.pdf.

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Kitchen waste, which is collected in large amounts from cafeterias, restaurants, dining halls, food processing plants, and household kitchens, have become a valuable material for bioprocess engineering. Due to the high carbohydrate fraction, kitchen waste has great potential to be used as a potential substrate for ethanol production. Utilization of it as a raw material in ethanol fermentation would also contribute to reduction of costs. In the first part of this study, the effect of pretreatment method and enzymatic hydrolysis on glucose production was evaluated. Dry baker&rsquo
s yeast, Saccharomyces cerevisiae, was used in fermentation experiments conducted with and without fermentation medium at pH 4.5 and 30oC for 48 hours. Close values of glucose concentration were obtained from no pretreated and hot water treated samples. The fermentation results indicated that ethanol can be produced at similar concentrations in bioreactors with and without fermentation medium addition (p >
0.05). Thus, it is concluded that use of kitchen wastes as is disposed and without fermentation medium in ethanol fermentation could lower the cost to a large extent. In the second part of this study, the effects of solid load, which is proportional to the glucose concentration (10% to 20% (w/w)), inoculum level of Saccharomyces cerevisiae (5% to 15% (v/v)), and fermentation time (48 to 96 h) on production of bioethanol from kitchen waste were studied using Response Surface Methodology (RSM). A three-factor Box Behnken design was used. Ethanol concentration was used as a response in the resulting experimental design. High Pressure Liquid Chromatography (HPLC) method was used to determine ethanol and glucose concentrations. The statistical analysis of the constructed model developed by RSM suggested that linear effects of solid load, inoculum level, and fermentation time and quadratic effects of inoculum level and fermentation time were all significant (p <
0.05) on bioethanol production. The model was verified by additional runs, which were not present in the design matrix. It was found that the constructed model could be used to determine successfully the bioethanol concentration with >
90% precision. An optimum ethanol concentration of 32.16 g/L was suggested by the model with 20% (w/w) solid load, 8.85% (v/v) inoculum level and 58.8 hours of fermentation. Further study is needed to evaluate the optimal fermentation conditions in a large scale fermentation
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Rajendran, Karthik, and Gopinath Balasubramanian. "High rate biogas production from waste textiles." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-20787.

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Textile is a global product used by all people in the world. These textiles after the use are thrown into the trash for incineration or land filling. However an efficient way that can be used to produce more energy, in an environmentally friendly process is anaerobic digestion. Waste textiles which contain cellulosic fibers (e.g. Cotton and viscose) can be converted to biogas. In this study, the performance of a two-stage anaerobic digestion process for biogas production from four different materials, including untreated jeans, treated jeans, cotton, and starch was studied. Starch was used as an easy-to-digest material to compare its digestion with that of cellulosic materials.The two-stage processes were composed of a CSTR (for hydrolysis) and a UASB (for methanogenisis) which were investigated in two different configurations, namely (closed and open systems). In the closed system, the outlet of UASB was completely returned back to the CSTR, while in the open system the UASB outlet was sent to sewage. In a stepwise progress, the OLR was aimed to increase from 2 to 20 g Vs per L per day along with reduction in hydraulic retention time from 10 days to 1 day.The results showed that the closed system was more stable when compared to the open system. The pre-treatment of jeans by NMMO helped to produce methane as that of cotton. The hydraulic retention time was decreased to less than 9 days for treated jeans and less than 5 days for starch. The overall methane yield at OLR of 4 gVS per L per day for starch and treated jeans was 98.5% and 97.4% in the closed system, whereas in the open system the yield was 77.0% and 35.5%, respectively.Another experiment was conducted to compare the performance of two-stage process with that of a single stage process of anaerobic digestion of textiles containing polyester and cotton or viscose. Viscose textiles produced more gas compared to the cotton textile; it may be due to the higher crystalline of cotton which makes it hard to be degraded by the microorganisms. Furthermore, two-stage process could able to produce more methane than the single stage process.The parameters like total solids, volatile solids, pH, gas production, gas composition, concentration of nutrients, and COD were also analyzed for both of the experiments.
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Chhiba, Chetan. "Titanium alloy powder production from waste metal." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/11989.

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Includes abstract.
Includes bibliographical references.
Titanium and its alloys are among the most important advanced materials in use today due to attractive properties such as high strength to weight ratio and excellent corrosion resistance. However, the cost of titanium production is high, mostly due to the high cost of extraction. This has led to investigations of potentially lower cost methods such as near-net shape powder metallurgy techniques. One approach, which has the potential of producing the lowest cost powder available, involves converting titanium waste machine turnings to powder using the hydride-dehydride (HDH) process. The focus of this project is directed at this approach where a ball milling process is used to simultaneously hydrogenate and crush the titanium turnings into titanium hydride powder.
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Бурлакова, Ірина Михайлівна, Ирина Михайловна Бурлакова, Iryna Mykhailivna Burlakova, Тетяна Миколаївна Руденко, Татьяна Николаевна Руденко, and Tetiana Mykolaivna Rudenko. "Systemic approach to the waste-free production." Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/31064.

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The issue of the environment has become central, which is where it belongs, in the vicissitudes of human life. It certainly was not discovered yesterday, but the pressure of humans on natural resources in the last half-century has become more intensive and widespread than ever. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/31064
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Winzer, Jami Susan [Verfasser]. "Production and Characterisation of Alumina-Copper Interpenetrating Composites / Jami Susan Winzer." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2011. http://d-nb.info/1106453069/34.

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Книги з теми "Waste of alumina production"

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International Symposium on Production, Refining, Fabrication, and Recycling of Light Metals (1990 Hamilton, Ont.). Production, refining, fabrication and recycling of light metals. Edited by Bouchard Michel 1942-, Tremblay Pierre, Metallurgical Society of CIM. Light Metals Section, and Conference of Metallurgists (29th : 1990 : Hamilton, Ont.). Elmsford, N.Y: Pergamon, 1990.

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International Symposium on Production, Refining, Fabrication, and Recycling of Light Metals (1990 Hamilton, Ont.). Production, refining, fabrication, and recycling of light metals: Proceedings of the International Symposium on Production, Refining, Fabrication, and Recycling of Light Metals, Hamilton, Ontario, August 26-30, 1990. Edited by Bouchard Michel 1942-, Tremblay Pierre, Metallurgical Society of CIM. Light Metals Section., and Conference of Metallurgists (29th : 1990 : Hamilton, Ont.). New York: Pergamon Press, 1990.

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3

Integrated pollution control licensing: BATNEEC guidance note for the production of cement. Ardcavan: Environmental Protection Agency, 1996.

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4

A, Nahm B., ed. Poultry production and waste management. Seoul, Korea: Yu Han Pub. Co., 2004.

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5

Shannon, Tracy. The production of alumina-zirconia laminar composites by co-extrusion. Birmingham: University of Birmingham, 1998.

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6

Rennie, Caroline. Salvaging the future: Waste-based production. Washington, DC: Institute for Local Self-Reliance, 1989.

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7

Allen, Robert. Waste not, want not: The production and dumping of toxic waste. London: Earthscan, 2009.

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Waste not, want not: The production and dumping of toxic waste. London: Earthscan Publications, 1992.

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Robert, Allen. Waste not, want not: The production and dumping of toxic waste. London: Earthscan, 2009.

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Robert, Allen. Waste not, want not: The production and dumping of toxic waste. London: Earthscan, 2009.

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Частини книг з теми "Waste of alumina production"

1

Takei, H., C. Tachibana, T. Kudo, and M. Watase. "Production of High Purity Alumina from Acidic Waste Solution of Aluminum Etching Process." In Sintering ’87, 114–19. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-1373-8_20.

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Yu, Miao, Maria S. Gudjonsdottir, Pall Valdimarsson, and Gudrun Saevarsdottir. "Waste Heat Recovery from Aluminum Production." In Energy Technology 2018, 165–78. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-72362-4_14.

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Nowicki, Cassandre, Louis Gosselin, and Carl Duchesne. "Waste Heat Integration Potential Assessment through Exergy Analysis in an Aluminum Production Facility." In Energy Technology 2012, 165–72. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118365038.ch21.

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Zaman, Atiq, and Tahmina Ahsan. "Production, Consumption, and Waste Management." In Zero-Waste, 42–58. Abingdon, Oxon ; New York, NY : Routledge, 2020.: Routledge, 2019. http://dx.doi.org/10.4324/9781315436296-4.

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Abraham, Jeffin James, Christian Randell A. Arro, Ali A. El-Samak, Alaa H. Hawari, and Deepalekshmi Ponnamma. "Biowastes for Ethanol Production." In Energy from Waste, 131–50. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003178354-12.

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Bell, Donald D. "Waste Management." In Commercial Chicken Meat and Egg Production, 149–67. Boston, MA: Springer US, 2002. http://dx.doi.org/10.1007/978-1-4615-0811-3_11.

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Vlasov, Evgeny A., Vadim A. Lipin, Rustam A. Seytenov, Natalia V. Maltseva, and Natalia A. Odincova. "Features of Pseudoboehmite from Alumina Production." In The Minerals, Metals & Materials Series, 71–77. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-72284-9_11.

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Donato, Antonello Di. "H2 Production and CO2 Separation." In Syngas from Waste, 145–67. London: Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-540-8_7.

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Faisal, Shah, Muhammad Naveed, Sayyed Kifayatullah, and Mian Muhammad. "Plastic Recycling for Energy Production." In Waste-to-Energy, 411–47. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-91570-4_14.

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Rashid, Umer, Rose Fadzilah Abdullah, Balkis Hazmi, and Wan Nur Aini Wan Mokhtar. "Waste Feedstocks for Biodiesel Production." In Energy from Waste, 151–66. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003178354-13.

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Тези доповідей конференцій з теми "Waste of alumina production"

1

Ghoniem, M. G., T. M. Sami, S. A. El-Reefy, and S. A. Mohamed. "The production of high purity alumina from solid wastes obtained from aluminium factories." In WASTE MANAGEMENT 2014. Southampton, UK: WIT Press, 2014. http://dx.doi.org/10.2495/wm140031.

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2

"The Use of Vanadium Production Waste to Produce Alumina Cement." In SP-326: Durability and Sustainability of Concrete Structures (DSCS-2018). American Concrete Institute, 2018. http://dx.doi.org/10.14359/51711029.

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"Utilization of Waste Cooking Oil for Biodiesel Production Using Alumina Supported base Catalyst." In 3rd International Conference on Biological, Chemical and Environmental Sciences. International Institute of Chemical, Biological & Environmental Engineering, 2015. http://dx.doi.org/10.15242/iicbe.c0915050.

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4

Jafari, Navid H., and Timothy D. Stark. "Calorimeter Test for Aluminum Production Waste Reactivity." In Geo-Congress 2014. Reston, VA: American Society of Civil Engineers, 2014. http://dx.doi.org/10.1061/9780784413272.342.

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Samchenko, Svetlana. "USAGE ALUMINIFEROUS WASTE IN THE PRODUCTION OF ALUMINATE CEMENTS." In 17th International Multidisciplinary Scientific GeoConference SGEM2017. Stef92 Technology, 2017. http://dx.doi.org/10.5593/sgem2017/62/s26.059.

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HIRAKI, TAKEHITO, N. OKINAKA, H. UESUGI, and T. AKIYAMA. "DIRECT PRODUCTION OF PRESSURIZED HYDROGEN FROM WASTE ALUMINUM WITHOUT GAS COMPRESSOR." In Proceedings of the International Symposium. WORLD SCIENTIFIC, 2009. http://dx.doi.org/10.1142/9789812838025_0004.

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7

Vilarinho, Cândida, André Ribeiro, Joana Carvalho, Jorge Araújo, Manuel Eduardo Ferreira, and José Teixeira. "Development of a Methodology for Paint Dust Waste Energetic Valorization Through RDF Production." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71979.

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Анотація:
Industrial activity of aluminum surface coating, namely by electrostatic painting with a polyester powder based resin, generates a significant array of wastes. Among these wastes, paint dust is classified as 08 01 12 on the European List of Wastes. As consequence of the inexistence of adequate treatment routes for its correct management, this waste is currently landfilled, without any energy and / or material recovery. Therefore, the development of proper waste management technologies in line with the environmental policies is imperative in order to improve the industrial competitiveness and to preserve the natural resources. In the present work, RDFs (Refused Derived Fuel) were produced, as pellets, for energetic valorization. These experimental RDF pellets were manufactured by mixing the industrial paint dust with sawdust (1.5 and 3%) and with paperboard (1.5%). They were subsequently tested on a purpose built experimental boiler and the combustion efficiency was assessed in terms of gaseous emissions and chemical composition of the bottom and fly ashes. The paint dust waste was delivered by a local surface treatment company and characterized concerning chemical, physical and eco toxicological properties, proving to be rich in Carbon (50.2%) and Hydrogen (4.73%). The obtained RDFs were characterized for mechanical durability, elemental and chemical analysis, bulk density and lower heating value. Results show that the utmost lower heating value (19670 kJ/kg) was obtained for the maximum incorporation content of paint dust waste tested (3%). Combustion trials were carried out at a fuel flow rate between 2 and 3 kg/h. The results showed that the incorporation of paint dust waste resulted in a decrease of the thermal efficiency which suggests that the air fuel ratio was not properly adjusted to the varying heat value of the fuel blend. For all the tests, the mass flow rate and the quality of the gaseous emissions were evaluated for the most relevant pollutants such as particles, SO2, TOC, CO and NOx. All parameters, except for particles in one single case, comply with strict environmental limits applicable. Samples of ashes have also been collected and their chemical composition correlated with the fusibility behavior. The results show that such levels of incorporation could be an effective process for paint dust waste management from both the environmental and energetic points of view.
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8

Kruger, Albert A. "High Waste Loading Glass Formulations for Hanford High-Aluminum High-Level Waste Streams." In ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2011. http://dx.doi.org/10.1115/icem2011-59388.

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The current estimates and glass formulation efforts have been conservative in terms of achievable waste loadings. These formulations have been specified to ensure that the glasses are homogenous, contain essentially no crystalline phases, are processable in joule-heated, ceramic-lined melters and meet WTP Contract terms. The WTP’s overall mission will require the immobilization of tank waste compositions that are dominated by mixtures of aluminum (Al), chromium (Cr), bismuth (Bi), iron (Fe), phosphorous (P), zirconium (Zr), and sulfur (S) compounds as waste-limiting components. Glass compositions for these waste mixtures have been developed based upon previous experience and current glass property models. Recently, DOE has initiated a testing program to develop and characterize HLW glasses with higher waste loadings. Results of this work have demonstrated the feasibility of increases in waste loading from about 25 wt% to 33–50 wt% (based on oxide loading) in the glass depending on the waste stream. It is expected that these higher waste loading glasses will reduce the HLW canister production requirement by about 25% or more.
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9

Kruger, Albert A. "Enhanced HLW Glass Formulations for the Waste Treatment and Immobilization Plant." In ASME 2013 15th International Conference on Environmental Remediation and Radioactive Waste Management. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icem2013-96028.

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Анотація:
Current estimates and glass formulation efforts are conservative vis-à-vis achievable waste loadings. These formulations have been specified to ensure that glasses are homogenous, contain essentially no crystalline phases, are processable in joule-heated, ceramic-lined melters and meet WTP Contract terms. The WTP’s overall mission will require the immobilization of tank waste compositions that are dominated by mixtures of aluminum, chromium, bismuth, iron, phosphorous, zirconium, and sulfur compounds as waste-limiting components. Glass compositions for these waste mixtures have been developed based upon previous experience and current glass property models. DOE has a testing program to develop and characterize HLW glasses with higher waste loadings. This work has demonstrated the feasibility of increases in waste loading from 25 wt% to 33–50 wt% (based on oxide loading) in the glass depending on the waste stream. It is expected these higher waste loading glasses will reduce the HLW canister production requirement by 25% or more.
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10

Lumetta, Gregg J., Brian M. Rapko, and Herman M. Cho. "Studies of the Fundamental Chemistry of Hanford Tank Sludges." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4633.

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Анотація:
The U.S. Department of Energy has embarked on an effort to retrieve, immobilize, and dispose of the 2.1 × 105 m3 of radioactive tank wastes that were generated during weapons production and other operations at the Hanford Site in Washington State. One of the major challenges associated with this effort is the processing of the 4.2 × 104 m3 of high-level waste sludges. These sludges consist of a complex mixture of amorphous and crystalline mineral phases. The current plan for processing the sludge solids consists of leaching with aqueous NaOH, washing out the NaOH and dissolved components, then vitrifying the solids in borosilicate glass. The purpose of the NaOH leaching step is to remove components such as Al, Cr, and P that can lead to the production of an unacceptable quantity of high-level waste glass. In this paper, we will discuss the chemistry underlying the leaching and washing processes, focusing on the specific mineral phases present in the sludge solids and how these phases respond to the leaching process. The chemical phases present in the Hanford tank sludge solids have been identified through microscopy coupled with electron diffraction and through powder X-ray diffraction. We have also recently been applying nuclear magnetic resonance spectroscopy to characterize chemical species in tank sludge solids. Numerous chemical species have been identified including the aluminum oxy/hydroxides gibbsite and boehmite, aluminosilicates, iron oxy/hydroxides, and mixed Cr/Fe oxyhydroxides. Identification of these phases has led to a more fundamental understanding of the behavior of the various sludge components during leaching; in turn, this understanding will allow for improved process flow sheets. For example, we have shown that certain tank sludges are high in boehmite, Υ-AIOOH. This mineral phase is much more refractory than other AI phases such as gibbsite. Thus, more severe leaching conditions (e.g., increased temperature, NaOH concentration, and leaching duration) are required to remove AI from wastes high in boehmite.
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Звіти організацій з теми "Waste of alumina production"

1

Kapolnek, D. Synthesis of alumina-coated SiC whiskers for production of SiC whisker-reinforced alumina composite materials. Office of Scientific and Technical Information (OSTI), December 1989. http://dx.doi.org/10.2172/7152794.

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Hassan, N. M., J. C. Marra, and E. A. Kyser. Adsorption decontamination of radioactive waste solvent by activated alumina and bauxites. Office of Scientific and Technical Information (OSTI), October 1994. http://dx.doi.org/10.2172/10186149.

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Russell, Renee, Yeong-Shyung Chou, Benjamin McCarthy, Lori Darnell, Vivianaluxa Gervasio, Jodi Mayer, Jesse Lang, et al. Glass Compositions and Properties of Enhanced Waste Glass with High Alumina Content for High-Level Waste. Office of Scientific and Technical Information (OSTI), January 2018. http://dx.doi.org/10.2172/1784534.

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Chang, Yun, and C. L. Hoenig. Thermal and stress analysis of hot isostatically pressed, alumina ceramic, nuclear waste containers. Office of Scientific and Technical Information (OSTI), March 1990. http://dx.doi.org/10.2172/137706.

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SAMS TL and GEINESSE D. TEST PROGRAM FOR ALUMINA REMOVAL AND SODIUM HYDROXIDE REGENERATION FROM HANFORD WASTE BY LITHIUM HYDROTALCITE PRECIPITATION. Office of Scientific and Technical Information (OSTI), January 2011. http://dx.doi.org/10.2172/1010337.

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Ikura, M., H. Seoud, J. F. Kelly, and M. Stanciulescu. Production of value-added products from waste plastics. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1994. http://dx.doi.org/10.4095/304614.

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Akers, David J., Glenn A. Shirey, Zalman Zitron, and Charles Q. Maney. PRODUCTION OF NEW BIOMASS/WASTE-CONTAINING SOLID FUELS. Office of Scientific and Technical Information (OSTI), April 2001. http://dx.doi.org/10.2172/806994.

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Cozzi, A., and F. Johnson. Waste Management Strategies for Production of Mo-99. Office of Scientific and Technical Information (OSTI), January 2017. http://dx.doi.org/10.2172/1342717.

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Glenn A. Shirey and David J. Akers. Production of New Biomass/Waste-Containing Solid Fuels. Office of Scientific and Technical Information (OSTI), September 2005. http://dx.doi.org/10.2172/861525.

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Rogers, R. III. Hydrogen production by gasification of municipal solid waste. Office of Scientific and Technical Information (OSTI), May 1994. http://dx.doi.org/10.2172/10172298.

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