Academic literature on the topic 'Clay sorbents'

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Journal articles on the topic "Clay sorbents"

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Dontsova, Tetiana A., Elena I. Yanushevskaya, Svitlana V. Nahirniak, et al. "Directional Control of the Structural Adsorption Properties of Clays by Magnetite Modification." Journal of Nanomaterials 2018 (December 16, 2018): 1–9. http://dx.doi.org/10.1155/2018/6573016.

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This article presents the results of the study on the effect of nanomagnetite modification on textural characteristics of clay matrices, adsorption properties, and parameters of the spent sorbents separation. The nitrogen adsorption-desorption method has shown that the obtained magnetic nanocomposite sorbents have large specific surface areas (in 1.2–2 times more) than the initial clays due to the formation of the secondary porous structure on the surface and in macropores of clay matrices. The best adsorption properties with respect to dyes belong to magnetic sorbents with nanomagnetite conte
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Lakevičs, V., J. Brovkina, V. Stepanova, et al. "Solving Environmental Problems with Latvian Clay-Based Sorbents." Latvian Journal of Chemistry 51, no. 4 (2012): 389–97. http://dx.doi.org/10.2478/v10161-012-0029-4.

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Currently there is an increasing interest in application of natural clay minerals in production of various products, including sorbents for waste water treatment. For practical application of clay as a sorbent, it is significant not only to establish its properties, but also to be able to modify them. Only during the last twenty years, an increasing effort has been directed to systematic studies of clay sorption properties. A special attention has been devoted to improvement of clay sorption properties, which could allow to scientifically develop various sorbents for collection of oil products
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Kuznetsova, Ekaterina, and Nikolay Nevedrov. "Organo-mineral sorbents and their effect on the rate of carbon dioxide emission from the surface of agro dark gray soil." АгроЭкоИнфо 5, no. 59 (2023): 27. http://dx.doi.org/10.51419/202135527.

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The article presents data on the influence of sorbents on the dynamics of microbial respiration of agro dark gray soil. The rate of CO2 emission from soils treated with Keloway clay and sorbent based on sapropel and lime agrotem-gray soils increased by 72.8 83.5% relative to soils without sorbents. Keywords: SORBENT, SAPROPEL, LIME, HEAVY METALS, AGRO DARK GRAY SOIL, MICROBIOLOGICAL ACTIVITY
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Lu, Zhi Yan, and Qing Hai Guo. "Removal of Arsenic from Landfill Leachate by Selected Low-Cost Sorbents: An Experimental Study at the Zixiaguan Landfill of Wuhan City, Central China." Advanced Materials Research 356-360 (October 2011): 1427–32. http://dx.doi.org/10.4028/www.scientific.net/amr.356-360.1427.

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The leachate from the Zixiaguan landfill of Wuhan City contains a lot of undesirable or toxic chemicals, among which arsenic may have the most serious threat to environment and human health. Lowering the arsenic concentration in the leachate is therefore of extreme importance. In this study, natural sediments obtained from Wuhan City, including clay, silty soil and silty sand, were used as low-cost sorbents to remove arsenic from solution. The results of the batch sorption experiments indicate that the sorption processes of clay and silty sand match well with linear isothermal sorption model,
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Ishanova, M. N., A. A. Kadirbayeva, A. F. Minakovsky, and N. K. Sarybekova. "STUDY OF METHODS FOR ACTIVATING BENTONITE CLAY FROM THE DARBAZA DEPOSIT." Bulletin of Shakarim University. Technical Sciences, no. 3(15) (September 27, 2024): 313–21. http://dx.doi.org/10.53360/2788-7995-2024-3(15)-40.

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In our country, the problem of water treatment remains urgent, and this is facilitated by the growth of external factors, which can include the increase in the number of industrial enterprises, agricultural development, urban growth and others. Objective. To solve the problem of wastewater treatment it is economically advantageous to create new sorbents, from the resources available in our country. Instrumental test methods were chosen for bentonite clay treatment under experimental conditions using scanning electron microscope (SEM) Jeol JSM-6490l V, FTIR spectrometer NEXUS E.S.P. (Thermo Sci
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Abdugaffarova, Kristina K., Maksim V. Dorogov, Anatolii A. Vikarchuk, Vlada V. Zabolotskikh, and Vladislav S. Firsov. "New Sorption Materials on the Basis of Aluminosilicates for Wasterwater Treatment." Nano Hybrids and Composites 13 (January 2017): 190–96. http://dx.doi.org/10.4028/www.scientific.net/nhc.13.190.

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This article presents the results of experimental obtaining together with tests of modifications of the granulated sorption aluminosilicate-based material. The chemical composition, structure and morphology of a surface of the obtained modifications of sorbents from clay have been explored. Through a complex of modern physical methods it is established that porosity and a specific surface of clay-based sorbents increased as a result of modification. Pilot studies have shown higher efficiency of new aluminosilicate-based sorbents in comparison with absorbent carbon during sorption of such model
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Ishanova, M. N., A. A. Kadirbayeva, and N. K. Sarypbekova. "Research on the production of sorbent based on bentonite clay for wastewater treatment from chemical industries." Kompleksnoe Ispolzovanie Mineralnogo Syra = Complex Use of Mineral Resources 333, no. 2 (2024): 27–33. http://dx.doi.org/10.31643/2025/6445.14.

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In our country, the problem of water purification remains urgent, with the growth of external factors contributing to this, which can include an increase in the number of industrial enterprises, the development of agriculture, urban growth and others. To solve the problem of water purification it is economically advantageous to create new sorbents, with the available resources in our country.For the processing of of bentonite clay under experimental conditions, instrumental test methods were chosen using a scanning electron microscope (SEM) of the Jeol JSM-6490l V brand, a multi-parameter port
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Lhotka, M., V. Machovič, and B. Doušová. "Preparation of modified sorbents from rehydrated clay materials." Clay Minerals 47, no. 2 (2012): 251–58. http://dx.doi.org/10.1180/claymin.2012.047.2.08.

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AbstractThe use of clay materials as selective sorbents for different contaminants requires very efficient methods. A natural kaolinite was calcined to metakaolinite and than rehydrated at different temperatures to produce a highly porous sorbent. The kinetics of this process were measured, with subsequent IR characterization of the phases formed. The surface and pore distribution of new phases were also assigned. In addition, the kaolinite obtained was pre-treated with Fe3+ ions to improve its sorption affinity for anionic particles. The rehydrated kaolinite and its Fe-modification were used
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Eter Salukvadze Omar Lomtadze, Tsiala Gabelia, Leila Japaridze, and Nunu Shalvashvili. "New sorbents based on carbonized bentonite - Askan Clay." World Journal of Advanced Research and Reviews 25, no. 2 (2025): 2058–64. https://doi.org/10.30574/wjarr.2025.25.2.0450.

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The paper presents the results of obtaining medical sorbents, studying their physical and chemical characteristics and conducting clinical trials. Carbonized modifications of “Askan clay” (montmorillonite clay from the village of Askana) were obtained by heat treatment of a mixture of “Askan clay” and carbohydrates (glucose, molasses). Carbonization is accompanied by a sharp increase in the overall porosity of “Askan clay”. Samples of carbonized “Askan clay” are characterized by high exchange and sorption capacity. Sorption of cations and anions for carbonized samples occurs in the following s
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Bani, Siphumze, Janice Limson, Bongumusa M. Zuma, and Roman Tandlich. "Short Communication: Potential of Biochar And Clays as Sorbents For Treatment Of Greywater and Related Wastewaters in South Africa." Journal of Solid Waste Technology and Management 50, no. 2 (2024): 577–89. http://dx.doi.org/10.5276/jswtm/iswmaw/502/2024.577.

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Due to the issues of water scarcity, there is a need for formulation of technologies to remove various components wastewaters to produce water that can be reused for irrigation and toilet flushing. Local production of low-cost sorbents and their use in the treatment of greywater were examined in the current study. The aim was to assess whether different clays and/or biochar could be used the potential of the sorbents for greywater remediation. These sorbents were locally mined or sourced/produced in South Africa, and so they could provide a suitable and low-cost treatment option for the greywa
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Dissertations / Theses on the topic "Clay sorbents"

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Moazed, Hadi. "Removal of oil from water by organo-clay and other sorbents." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0021/NQ54674.pdf.

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Samineni, Keerthi. "Adsorption of Bisphenol S from Water Using Natural Sorbents." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton151256696989552.

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Nzengung, Valentine Asongu. "Organoclays as sorbents for organic contaminants in aqueous and mixed-solvent systems." Diss., Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/26460.

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Марченко, Лариса Іванівна, Лариса Ивановна Марченко, Larysa Ivanivna Marchenko, К. В. Лего та Ю. М. Шупик. "Адсорбція іонів цинку на глинистих сорбентах". Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/31723.

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З метою оцінки ефективності використання місцевих глинистих мінералів в технологіях очищення стоків, а також можливого використання їх в якості техногенних геохімічних бар'єрів для створення екрану в основі шламосховища, досліджували адсорбцію іонів цинку на глинистих мінералах Сумщини. При цитуванні документа, використовуйте посилання http://essuir.sumdu.edu.ua/handle/123456789/31723
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Xi, Yunfei. "Synthesis, characterisation and application of organoclays." Thesis, Queensland University of Technology, 2006. https://eprints.qut.edu.au/16483/1/Yunfei_Xi_Thesis.pdf.

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This thesis focuses on the synthesis and characterisation of organoclays. X-ray diffraction has been used to study the changes in the basal spacings of montmorillonite clay and surfactant-intercalated organoclays. Variation in the d-spacing was found to be a step function of the surfactant concentration. Three different molecular environments for surfactant octadecyltrimethylammonium bromide (ODTMA) within the surface-modified montmorillonite are proposed upon the basis of their different decomposition temperatures. High-resolution thermogravimetric analysis (HRTG) shows that the thermal de
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Xi, Yunfei. "Synthesis, characterisation and application of organoclays." Queensland University of Technology, 2006. http://eprints.qut.edu.au/16483/.

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This thesis focuses on the synthesis and characterisation of organoclays. X-ray diffraction has been used to study the changes in the basal spacings of montmorillonite clay and surfactant-intercalated organoclays. Variation in the d-spacing was found to be a step function of the surfactant concentration. Three different molecular environments for surfactant octadecyltrimethylammonium bromide (ODTMA) within the surface-modified montmorillonite are proposed upon the basis of their different decomposition temperatures. High-resolution thermogravimetric analysis (HRTG) shows that the thermal de
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Рябчевський, Олег Володимирович, та Ryabchevsky O. V. "Очищення стічних вод від іонів хрому та нікелю глинистими сорбентами". Thesis, Національний авіаційний університет, 2019. http://er.nau.edu.ua/handle/NAU/40568.

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Рябчевський О. В. Очищення стічних вод від іонів хрому та нікелю глинистими сорбентами : дис. канд. техн. наук : 21.06.01 / Національний авіаційний університет – Київ, 2019. – 125 с.<br>Дисертаційна робота присвячена вирішенню актуального науково-практичного завдання підвищення рівня екологічної безпеки очищення виробничих стічних вод від іонів хрому (ІІІ) та нікелю (ІІ) шляхом застосування природних глинистих сорбентів. За допомогою рентгенографічного аналізу, газової адсорбції та гравіметричного методу досліджено структуру та хімічний склад глинистих сорбентів. Досліджено сорбційні властиво
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Сакалова, Г. В. "Науково-теоретичні основи комбінованих процесів очищення водних середовищ із використанням природних сорбентів". Thesis, Івано-Франківський національний технічний університет нафти і газу, 2017. http://elar.nung.edu.ua/handle/123456789/4875.

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Дисертаційна робота присвячена вирішенню науково - прикладної проблеми раціонального комбінування процесів адсорбційного очищення водних середовищ в системах з природними дисперсними сорбентами, модифікування цих сорбентів, осадження та регенерації відпрацьованих сорбентів в природоохоронних технологіях. На основі принципу комбінаторності та дотримання умов оптимізації інтегрованих процесів розроблено методологічний підхід до дослідження та створення економічно ефективних та екологічно безпечних технологій очищення стічних та поверхневих вод із використанням природних глинистих сорбентів. Досл
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Book chapters on the topic "Clay sorbents"

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Cosin, S., Carolina A. Pinto, P. Souza Santos, and Francisco Rolando Valenzuela-Díaz. "Complex Carbon-Mineral Sorbents from Common Clay." In Advanced Powder Technology IV. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-984-9.734.

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Caine, M., G. Dyer, J. V. Holder, et al. "The Use of Clays as Sorbents and Catalysts." In Natural Microporous Materials in Environmental Technology. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4499-5_4.

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Vianna, Marilda M. G. Ramos, Francisco Rolando Valenzuela-Díaz, Valquiria F. J. Kozievitch, Jo Dweck, and Pedro M. Büchler. "Synthesis and Characterization of Modified Clays as Sorbents of Toluene and Xylene." In Advanced Powder Technology IV. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-984-9.691.

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Gamoudi, Safa, and Ezzeddine Srasra. "Modification of Clay Minerals by Surfactant Agents: Structure, Properties, and New Applications." In Surfactants - Fundamental Concepts and Emerging Perspectives [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.110317.

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Organically surfactant-modified clays (OC) have attracted a great deal of interest because of their wide applications in industry and environmental protection. The OC are organic–inorganic complexes synthesized through the intercalation of organic cations mainly into the interlayer space of expandable clays. Different surfactants have been used to prepare OC. These include single and dual-cationic surfactants, anionic–cationic surfactants, and nonionic surfactants. The intercalation of the surfactant cations was governed by different processes: cationic exchange and Van der Waals ‘interactions
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Guimarães, Vanessa, and Iuliu Bobos. "Role of clay barrier systems in the disposal of radioactive waste." In Sorbents Materials for Controlling Environmental Pollution. Elsevier, 2021. http://dx.doi.org/10.1016/b978-0-12-820042-1.00011-0.

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Srinivasan, Keeran R., and H. Scott Fogler. "Binding of OCDD, 2,3,7,8-TCDD and HCB to Clay-Based Sorbents." In Chlorinated Dioxins and Dibenzofurans in Perspective. CRC Press, 2018. http://dx.doi.org/10.1201/9781351070645-36.

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Lhotka, M., and B. Dousova. "Surface properties of clay sorbents for decontamination of water polluted by arsenic." In Arsenic in the Environment - Proceedings. CRC Press, 2016. http://dx.doi.org/10.1201/b20466-225.

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Nanny, Mark A. "Sorption Processes in the Environment: Nuclear Magnetic Resonance Spectroscopy as a New Analytical Method." In Nuclear Magnetic Resonance Spectroscopy in Environment Chemistry. Oxford University Press, 1997. http://dx.doi.org/10.1093/oso/9780195097511.003.0006.

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The transport and fate of chemicals in the environment comprise one of the most pertinent issues in environmental chemistry. Physical and chemical interactions between the chemical of interest (sorbate) and the various components present in soil, water, and sediment (sorbent) can dramatically influence the transport and fate of the chemical. For example, organic material such as humic acids or surfactants, when bound to the surface of soil, sediment, and clay particles, can enhance sorption of chemicals to the particle surface, immobilizing the chemicals and possibly protecting them from degra
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Srinivasan, Keeran R., and H. Scott Fogler. "Preparation and Characterization of Clay-Based Sorbents for the Removal of Trace Levels of 2,3,7,8-TCDD from Industrial Wastewaters." In Chlorinated Dioxins and Dibenzofurans in Perspective. CRC Press, 2018. http://dx.doi.org/10.1201/9781351070645-35.

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"Resins and Clays as Sorbents." In Activated Charcoal in Medical Applications, Second Edition. CRC Press, 1995. http://dx.doi.org/10.1201/b14201-23.

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Conference papers on the topic "Clay sorbents"

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Kovalchuk, Iryna. "Clay-Based Sorbents for Environmental Protection from Inorganic Pollutants." In ECWS-7 2023. MDPI, 2023. http://dx.doi.org/10.3390/ecws-7-14247.

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Burlakovs, Juris, Ruta Ozola-Davidane, and Maris Klavins. "INNOVATIVE COMPOSITE SORBENTS FOR ORGANIC AND INORGANIC POLLUTANTS REMOVAL FROM AQUEOUS SOLUTIONS IN LANDFILL LEACHATES." In International Scientific Conference “EcoBalt 2021”. University of Latvia Press, 2021. http://dx.doi.org/10.22364/isceb.2021.01.

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The study reveals the development of appropriate innovative sorbents based on clay material for arsenic and p-nitrophenol sorption using iron oxy-hydroxide and surfactant modification. Natural and manufactured clay were chosen for comparison of modification efficiency to obtain the best sorption results for As (V) and p-nitrophenol. Obtained results indicate that modification of clay with iron compounds and various surfactants significantly improve the sorption capacity of newly developed materials used for sorption of inorganic and organic compounds from aqueous solutions in landfill leachate
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Uktam, Umirov, Temirov Uktam, Sabirov Bakhtiyor, et al. "Receiving sorbents based on natural clay mineral raw materials and studying their properties." In THE 3RD INTERNATIONAL SYMPOSIUM ON CIVIL, ENVIRONMENTAL, AND INFRASTRUCTURE ENGINEERING (ISCEIE) 2024. AIP Publishing, 2025. https://doi.org/10.1063/5.0267265.

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Grabuza, Dagnija, Linda Grinberga, Ruta Ozola-Davidane, and Julija Karasa. "Innovative solutions for phosphorus removal in municipal wastewater: primary and post-treatment approaches." In 24th International Scientific Conference Engineering for Rural Development. Latvia University of Life Sciences and Technologies, Faculty of Engineering and Information Technologies, 2025. https://doi.org/10.22616/erdev.2025.24.tf210.

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Excess phosphorus (P) in wastewater contributes to eutrophication, highlighting the need for efficient removal technologies across both decentralized and centralized wastewater treatment systems. This study evaluates two filtration-based approaches utilizing mineral-based sorbents for enhanced P removal. In decentralized settings, a prototype system integrating lightweight expanded clay aggregate (LECA) was tested for primary treatment of domestic wastewater. In parallel, Polonite®, a calcium-rich sorbent, was applied as a post-treatment solution for municipal effluents in centralized faciliti
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Burlakovs, Juris, Ruta Ozola-Davidane, Zane Vincevica-Gaile, et al. "Towards 'beyond the zero waste concept' : innovative solutions for valorization of fine residual waste fraction from landfills: rare earth elements potential." In Research for Rural Development 2022 : annual 28th international scientific conference proceedings. Latvia University of Life Sciences and Technologies, 2022. https://doi.org/10.22616/rrd.28.2022.036.

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The growing population of the planet and the population’s desire for ever-higher welfare standards have contributed to a linear economy-based consumer society model that is one of the main reasons for the increased volume of waste. Global sustainability, mitigation of climate change, and the reduction of pollution are strongly related to the waste management issue, and there is a need to switch from linear economy models to the circular economy. The maintaining solution for keeping and storing waste over the last century has been landfilling as its costs are the lowest. A sustainable approach
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Yurchenko, V. V., A. V. Sviridov, A. F. Nikiforov, V. S. Semenishchev, and A. F. Nizamova. "Separation of cesium and strontium from aqueous solutions by sorbents based on bentonite clays." In PHYSICS, TECHNOLOGIES AND INNOVATION (PTI-2018): Proceedings of the V International Young Researchers’ Conference. Author(s), 2018. http://dx.doi.org/10.1063/1.5055188.

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Brown, Oyeleke Raifu, Mohd Badruddin Bin Mohd Yusof, Mohd Razman Bin Salim, and Kamaruddin Ahmed. "Physico-chemical properties of palm oil fuel ash as composite sorbent in kaolin clay landfill liner system." In 2011 IEEE Conference on Clean Energy and Technology (CET). IEEE, 2011. http://dx.doi.org/10.1109/cet.2011.6041495.

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