Composite-Sorbent Based on Natural Mineral and Waste of Biological Treatment of Wastewater (Effluent)

Voytyuk, A.A.; Moskvicheva, E.V.; Shchitov, Dmitry; Katerinin, Konstantin; Sidyakin, P A; Lykova, E.Yu.

doi:10.4028/www.scientific.net/kem.736.183

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…Recent studies by a number of authors have focused on the development of composite materials as sorbents that combine the “desired” properties (such as the presence of SFG, developed specific surface area, mechanical strength, chemical resistance, etc.) of each of the components [ 16 , 17 , 18 , 19 , 20 ]. One of the approaches is to use natural polymers, such as humic acids, valuable products of the chemical processing of coal waste, to obtain composite sorbents suitable for the sorption method.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of a Polymer Composite Based on a Modified Aminohumic Acid Tuned to a Sorbed Copper Ion

et al. 2023

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A composite based on amino-containing humic acid with the immobilization of multi-walled carbon nanotubes preliminarily tuned to a copper ion has been obtained. The synthesis of a composite pre-tuned for sorption by the local arrangement of macromolecular regions was obtained by introducing multi-walled carbon nanotubes and a molecular template into the composition of humic acid, followed by copolycondensation with acrylic acid amide and formaldehyde. The template was removed from the polymer network by acid hydrolysis. As a result of this tuning, the macromolecules of the composite “remember” conformations that are favorable for sorption, i.e., adsorption centers are formed in the polymer network of the composite, capable of repeated, highly specific interaction with the template and the highly selective extraction of target molecules from the solution. The reaction was controlled by the added amine and by the content of oxygen-containing groups. The structure and composition of the resulting composite were proven by physicochemical methods. A study of the sorption properties of the composite showed that after acid hydrolysis, the capacity increased sharply compared to a similar composite without tuning and a composite before hydrolysis. The resulting composite can be used as a selective sorbent in the process of wastewater treatment.

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Section: Introductionmentioning

confidence: 99%

Synthesis of a Polymer Composite Based on a Modified Aminohumic Acid Tuned to a Sorbed Copper Ion

et al. 2023

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“…The properties of diatomaceous earth, as a sorbent material, are significantly influenced by the preparation and processing of natural raw materials. Studies on chemical modification [19], heat treatment [20], electrochemical action [21], and electrostatic enrichment [22] make it possible to increase the selectivity of action and sorption capacity. The actual direction of modification of building materials is the use of plasma technologies [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Activation of Diatomaceous Earth Low-Temperature Plasma

Bruyako

Grigoryeva

2020

MSF

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In residential and industrial buildings, a special air environment is formed, which contains gas shaped toxic chemical compounds. A significant part of such substances comes from finishing polymer containing materials. Virtually all polymeric materials release certain toxic chemical compounds into the air. The methods and methods of air cleaning are different. One of the ways to solve the problem associated with providing the required standards for the quality of indoor air is the development and use of new efficient building materials using aggregates that have a high sorption capacity. The paper presents the results of a study of the effect of low temperature non-equilibrium plasma on the sorption characteristics of aggregates based on diatomite earth. Studies have been conducted on samples of natural diatomite and quartz sand. When activated by low temperature nonequilibrium plasma, the structure changes, which leads to an increase in the sorption characteristics of the samples under study.

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“…Проведенные исследования по химической модификации [17], термообработке [18], электрохимическому воздействию [19] и электростатическому обогащению [20] сорбентов позволяют повысить их сорбционные свойства: скорость и емкость.…”

Section: Introductionunclassified

Modified sorbents based on diatomites

Cong¹,

Korotkova

Khanmamedova

et al. 2019

Vestnik MGSU

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А ННОТА Ц И Я Введение: качество воздушной среды в помещениях во многом зависит от присутствия в ней химических токсичных веществ. К основным источникам загрязнения можно отнести большую группу отделочных полимерсодержащих строительных материалов, мебель на основе MDF, HDF. В числе путей решения проблемы, связанной с обеспечением выполнения требований нормативов к качеству воздушной среды в помещениях, -разработка и применение новых эффективных строительных материалов с использованием заполнителей, обладающих высокой сорбционной способностью. Приведены результаты исследования влияния низкотемпературной неравновесной плазмы на сорбционные характеристики заполнителей на основе диатомита. Материалы и методы: в качестве исследуемых материалов были выбраны диатомиты Ирбитского месторождения, кварцевый песок. Исследование влияния низкотемпературной плазмы на изменение характеристик модифицированных диатомитов выполнялось методом комбинационного рассеяния (КР) на Рaмaн-спектрοметре Senterra. Изменение сорбционных характеристик диатомитов определялось весовым методом. Результаты: получены плазмомодифицированные опытные образцы сорбента на основе диатомита с более высокими сорбционными характеристиками по сравнению с исходными. Анализ результатов, полученных методом КР, подтвердил структурное изменение на поверхности плазмомодифицированных образцов с образованием дополнительных активных центров и радикалов. Выводы: модифицированные сорбенты способны обеспечивать более эффективное поглощение токсичных веществ по сравнению с контрольными образцами и после проведения дополнительных технологических исследований могут быть рекомендованы к внедрению в производство строительных материалов, обладающих дополнительными свойствами для обеспечения нормативных требований к качеству воздушной среды в помещениях.

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Composite-Sorbent Based on Natural Mineral and Waste of Biological Treatment of Wastewater (Effluent)

Cited by 5 publications

References 4 publications

Synthesis of a Polymer Composite Based on a Modified Aminohumic Acid Tuned to a Sorbed Copper Ion

Synthesis of a Polymer Composite Based on a Modified Aminohumic Acid Tuned to a Sorbed Copper Ion

Activation of Diatomaceous Earth Low-Temperature Plasma

Modified sorbents based on diatomites

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