scholarly journals STUDY OF ADSORPTION AND KINETIC CHARACTERISTICS OF NATURAL SORBENTS WITH RESPECT TO PLUMBUM (II) IONS

2019 ◽  
pp. 335-344
Author(s):  
Evgeniya Olegovna Kulichenko ◽  
Lidiya Petrovna Mykots ◽  
Nina Aleksandrovna Tukhovskaya ◽  
Liliya Viniaminovna Ligay ◽  
Ol'ga Andreyevna Andreeva ◽  
...  
Keyword(s):  
Sorption Capacity ◽  
Raw Materials ◽  
Pharmacological Action ◽  
Botanical Garden ◽  
Water Soluble ◽  
Lead Ions ◽  
Kinetic Characteristics ◽  
Time Intervals ◽  
Cosmos Bipinnatus ◽  
High Sorption

The studies conducted are devoted to the study of the sorption capacity of water-soluble polysaccharides with respect to plumbum (II) cations and the establishment of the kinetic characteristics of the process. Fractions of water-soluble polysaccharides derived from the herb Cosmos bipinnatus Cav. (Asteraceae) of two different varieties "Dazzler" and "Purity". Raw materials were harvested during the flowering period of the plant in the Botanical Garden of the Pyatigorsk Medical and Pharmaceutical Institute. As a result of the research, the adsorption capacity of the obtained water-soluble polysaccharides to lead ions was studied. The chemical composition of Cosmos bipinnatus is not well understood. Phenolic compounds (the presence of chalcones, aurones, phenolic acids, flavonoids) and essential oils have been studied, while information about the carbohydrate composition has hardly been found, although often this group of compounds plays a significant role in pharmacological action. The physicochemical properties of polysaccharides are practically not studied. In this study, we established a rather high sorption capacity of water-soluble polysaccharides obtained from cosmetically doubly-circular two different grades "Dazzler" and "Purity" relative to plumbum (II) ions (90 and 92.5%, respectively). The concentration of lead ions was determined at different time intervals by complexometric titration. The process of complexation proceeds in the first order. The analysis of the obtained data allows us to conclude that it is possible to use the VRPS obtained from the cosmetically doubly-circular "Purity" and "Dazzler" varieties to extract plumbum (II) ions, and as natural detoxicants.

scholarly journals Дослідження хемосорбційних властивостей волокнистих сорбентів для очищення стічних вод від іонів Fe3+

2020 ◽  
Vol 138 (5) ◽  
pp. 150-159
Author(s):  
Н. В. Тарасенко ◽  
В. П. Плаван ◽  
Ю. О. Будаш ◽  
М. К. Коляда ◽  
О. В. Рачинська
Keyword(s):  
Sorption Capacity ◽  
Raw Materials ◽  
Fibrous Materials ◽  
Synthetic Fibers ◽  
Industrial Enterprises ◽  
Ammonium Alum ◽  
Before And After ◽  
High Sorption ◽  
Mechanism Of Interaction ◽  
Ferric Ammonium

Create new eco-friendly composite fibrous materials with sorption properties in relation to heavy metal ions in wastewater of industrial enterprises. To study the sorption capacity of synthetic fibers with respect to iron compounds. By the analytical methods determined the content of Fe3+ in model solutions of ferric ammonium alum before and after treatment, calculated the degree of exhaustion solution, %; by means of IR-spectroscopy, synthetic fibers were investigated before and after treatment with vegetable polyphenols of Tara, Quebracho and Fe3+ compounds to determine the mechanism of interaction. The proposed method of modification of fibrous materials have based on the treatment of material with tannins solutions with different nature vegetable polyphenols. It was determined that the sorption capacity of the fiber sorbent in relation to Fe3+ after treatment with of Tara tannins at a temperature of 40oC is higher than after treatment with Quebracho tannins under similar conditions. Processing during the first four hours is most effective. In this case, the degree of exhaustion solution of ferric ammonium alum reaches 90 %. The obtained sorbent has such advantages as high sorption activity and the ability to further modify, the methods of production are quite simple and cheap, and the possibility of producing sorbent from secondary raw materials allows to solve the problem of waste disposal.

scholarly journals BIOSORBENTS BASED ON POLYSACCHARIDES. EVALUATION OF SORPTION CAPACITY IN RELATION TO URANIUM AND THORIUM

2019 ◽  
pp. 431-440
Author(s):  
Anatoliy Petrovich Karmanov ◽  
Al'bert Vladimirovich Kanarsky ◽  
Lyudmila Sergeyevna Kocheva ◽  
Zosia Al'bertovna Kanarskaya ◽  
Venera Maratovna Gematdinova ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Sorption Capacity ◽  
Water Soluble ◽  
Yeast Saccharomyces Cerevisiae ◽  
High Sorption Capacity ◽  
Strong Adsorption ◽  
High Sorption ◽  
Physical Phenomena ◽  
First Time ◽  
The Relationship

Study of sorption of heavy natural radionuclide’s uranium and thorium from water by β-gluсancontaining sorbents obtained from biomass of yeast Saccharomyces Cerevisiae and bran of oat Avena sativa was carried out. It is shown that the content of mobile (water-soluble, exchange and acid-soluble) and fixed forms of uranium on investigated β-glucans vary considerably. It is found that the extent of irreversible sorption of uranium does not exceed 58.6%. For the first time shown that β-glucans have high sorption capacity in ratio of thorium. In the conditions of the experiments it was retrieved more than 99% of thorium from the water. The content of fixed form of thorium reaches 94% of the sorbed. Characteristics of surface and capillary-porous structure of samples were defined. The correlation relationships between rates of adsorption and specific surface of preparations were installed. An analysis of the relationship between sorption capacity and various properties of glucans leads to the conclusion that the most important role for the implementation of a strong adsorption of heavy radionuclides belongs to chemisorptions mechanisms, while the contribution of surface physical phenomena is not essential. It is shown that the highest strong adsorption of thorium is characterized by a sample representing the cell walls of yeast Saccharomyces cerevisiae. The findings suggest of β-glucans prospects in practical terms and their use as polyfunctional enterosorbеnts.

Comparative analysis of essential oil obtained from fresh and dried leaves of medicinal sage

2020 ◽  
pp. 39-53
Author(s):  
Tatyana Shcheglova
Keyword(s):  
Comparative Analysis ◽  
Essential Oil ◽  
Raw Materials ◽  
Quantitative Difference ◽  
Botanical Garden ◽  
Component Composition ◽  
Gas Chromatography Mass Spectrometry ◽  
Qualitative And Quantitative ◽  
Salvia Officinalis L ◽  
Medical University

The article presents results of the study of a comparative analysis of essential oil obtained from fresh and dried leaves of medicinal sage (Salvia officinalis L.), growing in the Botanical Garden of the First Moscow State Medical University named after Sechenov. The studies were carried out using gas chromatography– mass spectrometry. Qualitative and quantitative difference in the component composition of the essential oil obtained from fresh and dried raw materials was determined as a result of the study.

Thiocarbamoyl chitosan as a novel sorbent with high sorption capacity and selectivity for the ions of gold(III), platinum(IV), and palladium(II)

2010 ◽  
Vol 59 (7) ◽  
pp. 1303-1306 ◽  
Author(s):  
A. V. Pestov ◽  
S. Yu. Bratskaya ◽  
A. B. Slobodyuk ◽  
V. A. Avramenko ◽  
Yu. G. Yatluk
Keyword(s):  
Sorption Capacity ◽  
High Sorption Capacity ◽  
High Sorption

DETERMINATION OF CORROSION INFLUENCE ON FUEL METAL, OBTAINED FROM SECONDARY POLYMER RAW MATERIALS

2021 ◽  
pp. 48-56
Author(s):  
K. Сhevchenko ◽  
A. Grigorov ◽  
I. Sinkevich
Keyword(s):  
Raw Materials ◽  
Petroleum Products ◽  
Copper Plate ◽  
Water Soluble ◽  
Synthetic Fuels ◽  
Laboratory Setup ◽  
Corrosive Effect ◽  
Preliminary Preparation ◽  
Sulfur Containing

The article proposes to determine the corrosion effect on fuel metals under dynamic conditions, when washing the prepared copper plate of a certain size, a significant amount of fuel at a certain speed and temperature of the study. This approach will significantly reduce the duration of the study (up to 100 minutes) and is closer to the real conditions of contact of the fuel with a metal surface, in comparison with the standardized method, which is widely used today. Using the proposed laboratory setup, the study was subjected to fuel (200–360 °C), which was obtained by thermal destruction of secondary polymer raw materials, in particular polypropylene. The obtained results showed that the investigated fuel, despite the temperature, the amount of circulating fuel and its water content, does not have a corrosive effect on the copper plate, which can be explained by the absence of corrosive substances in the fuel: water-soluble mineral acids and alkalis, active sulfur compounds and organic acids. However, it should be kept in mind that in polyolefin raw materials, in the form of contamination, there may be products made of other materials, such as rubber and polyvinyl chloride. This can happen when the sorting technology is violated or during the preliminary preparation of raw materials and, in turn, will contribute to the increase in sulfur-containing and chlorine-containing compounds in the fuel, which are characterized by high corrosion activity and should be necessarily removed from the fuel. Note that the fuel obtained from secondary polymer raw materials, in the absence of sulfur-containing and chlorine-containing compounds, is quite promising for the creation on its basis of modern synthetic fuels, analogues of classic petroleum products.

New Evidence for High Sorption Capacity of Hydrochar for Hydrophobic Organic Pollutants

2016 ◽  
Vol 50 (24) ◽  
pp. 13274-13282 ◽  
Author(s):  
Lanfang Han ◽  
Kyoung S. Ro ◽  
Ke Sun ◽  
Haoran Sun ◽  
Ziying Wang ◽  
...  
Keyword(s):  
Sorption Capacity ◽  
Organic Pollutants ◽  
High Sorption Capacity ◽  
High Sorption ◽  
New Evidence ◽  
Hydrophobic Organic Pollutants

Entrapment of radioactive uranium from wastewater by using fungus-Fe3O4 bio-nanocomposites

RSC Advances ◽  
2015 ◽  
Vol 5 (52) ◽  
pp. 41611-41616 ◽  
Author(s):  
La Li ◽  
Mingze Xu ◽  
Maksim Chubik ◽  
Marianna Chubik ◽  
Alexander Gromov ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Sorption Capacity ◽  
Culture Method ◽  
High Sorption Capacity ◽  
High Sorption ◽  
Magnetically Separable

Magnetically separable adsorbents with high sorption capacity for nuclear wastewater treatment have been successfully synthesized on the basis of fungus-Fe3O4 nanoparticle bio-nanocomposites through a simple co-culture method.

scholarly journals Industrial characteristics of Berberis L. representatives fruits

2018 ◽  
Vol 47 ◽  
pp. 63-69
Author(s):  
Yu. V. Lykholat ◽  
N. O. Khromykh ◽  
T. Yu. Lykholat ◽  
M. I. Nedzvetska ◽  
O. A. Lykholat ◽  
...  
Keyword(s):  
Food Industry ◽  
Seed Quality ◽  
Raw Materials ◽  
Low Frequency ◽  
Botanical Garden ◽  
Raw Material ◽  
Material Base ◽  
Total Antioxidant ◽  
Fruit Plants ◽  
Seed Propagation

The introduction of fruit plants into a culture enriches the diversity of the species composition of the regional flora and at the same time creates an opportunity for expansion of the plant raw material base for the needs of the food industry, inclusion in a full-fledged functional nutrition of the population. Among the fruit plants of the Dniprovsk region, every year, more attention should be paid to introduced low-frequency non-traditional fruit species, in which the fruits, leaves, stems and other parts have high nutritional value and are the source of physiologically active compounds that have anti-cancer, antibacterial and anti-inflammatory properties, carry cardio protective, antihypertensive, anti-diabetic effects, stimulate the central nervous system, etc., and can contribute to the prevention and treatment of many diseases.   Antioxidants additives in the raw materials and finished products ensures their prevention damage, reduce losses, increase shelf life and production of high quality products which keep for a long time characteristics inherent fresh, complete products. Preservation, restoration and introduction to the culture of any species depends primarily on its ability to multiply seed and vegetative methods. A comparative analysis of the fruit and seed ability of Berberis L. representatives grown in the botanical garden of Oles Gonchar’  Dniprovsky National University was carried out. The use of integrated research methods made it possible to carry out an integrated assessment of the regenerative capacity of the investigated representatives of the Berberis L. and to establish their biological ability to seed propagation depending on the seed quality of the seeds. The seeds length varied from 4.5 mm (B. canadensis) to 5.2 mm (B. declinata, B. amurensis), width was from 1.8 mm (B. amurensis, B. vulgares) to 2.1 mm ( B. coreana). The weight of 1000 seeds, which, depending on their size and completeness, amounted to an average of 10.16 grams. Largest weight 1000 pcs. seed is marked in B. coreana. As a result of the total antioxidant ability of the fruits, the species examined can be arranged in the following order:  B. koreana > B. x declinata > B. vulgaris > B. amurensis > B. canadensis. When comparing total antioxidant capacity level of the plants, the highest indices were characteristic for B. koreana and B. x declinata fruits, which exceeded the values of other species in 1.7-1.9 times. The relatively low antioxidants concentration in B. amurensis fruits is offset by a greater weight of the fruits of this species.  In order to enrich the range of ornamental and fruit plants, it is expedient to introduce into production of new crops and to expand the species diversity of Berberis L. representatives. Barberry reproduction process depends on many factors related to the environment. All investigated representatives of the Berberis L. are promising for further use in the planting system and as fruit plants that can be included in the functional nutrition of the population and use in the food industry in the conditions of the Steppe Prydniprovya.

scholarly journals Prospects for the use of Caragana fruits (Caragana arborescens and C. frutex) as alternative raw materials for the food industry

2021 ◽  
Vol 38 ◽  
pp. 00123
Author(s):  
Ekaterina Solomonova ◽  
Nikolay Trusov ◽  
Tatiana Nozdrina ◽  
Nikolay Kuvshinchikov
Keyword(s):  
Food Industry ◽  
Raw Materials ◽  
Botanical Garden ◽  
Asian Countries ◽  
Number Of Factors ◽  
Comparative Aspect ◽  
Caragana Arborescens ◽  
Vegetable Raw Materials ◽  
Academy Of Sciences ◽  
Saline Land

Currently, there is an increase in the world’s population against the background of a reduction in land suitable for growing traditional agricultural crops. This is especially true for Asian countries. Due to a number of factors, the areas of fertile land are decreasing, and the areas of saline land are increasing; arid areas of the planet are expanding. In this regard, it is important to introduce plants into the culture that can grow on poor, arid, saline soils. The purpose of the research is to study vegetable raw materials from fruits Caragana arborescens and C. frutex, undergoing introduction tests in the arboretum of the Tsytsin Main Botanical Garden of Russian Academy of Sciences, to find out the possibilities and advantages of their use in the food industry in a comparative aspect. A comparative assessment of the size and weight characteristics of the fruits and seeds of C. arborescens and C. frutex studied by us indicates the possibilities of their industrial food use in the future, along with a good introduction, and, probably, plantation potential of these plants.

scholarly journals Synthesis Of High Silicon Zeolites From Kaolin And Bentonite

2021 ◽  
Vol 03 (03) ◽  
pp. 30-36
Author(s):  
Fayzullaev Normurot Ibodullaevich ◽  
◽  
Mamadoliev Ikromjon Ilkhomidinovich ◽  
Keyword(s):  
Surface Morphology ◽  
Water Content ◽  
Surface Area ◽  
Sorption Capacity ◽  
Raw Materials ◽  
Physical Activation ◽  
Textural Characteristics ◽  
Heat Of Wetting ◽  
Calculated Distribution ◽  
High Silicon

In this paper problems of chemical and physical activation of local raw materials caoline and bentonite, and textural characteristics of high silicon zeolites and surface morphology were studied. The effect of the activation method of caoline and bentonite on the colloidal and sorption capacity was also studied. During the studies, the heat of wetting, adsorption linked water content and effective relative surface area were determined. Calculated distribution of pores by cycles (loops) of isothermal hysteresis r ≈ 8.5 nm. The volume of porosity of the sorbent when the capillaries were filled with water was determined as Vn= 0.135 cm3/g.

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