scholarly journals Environmentally friendly technologies of oil products extraction in oil-containing wastes purification

2021 ◽  
Vol 34 (01) ◽  
pp. 24-42
Author(s):  
Мaral Abdibattayeva ◽  
Kylyshbay Bissenov ◽  
Zheniskul Zhubandykova ◽  
Raigul Orynbassar ◽  
Lyazzat Tastanova
Keyword(s):  
Solar Energy ◽  
Raw Materials ◽  
Treatment Method ◽  
Oil Products ◽  
Treatment Technology ◽  
Purification Method ◽  
Environmental Setting ◽  
Chemical Studies ◽  
Physical And Chemical ◽  
Commercial Oil

Significant oil losses in oil-containing wastes and their adverse impact on the region’s environmental setting bring about the need to develop an oil-containing wastes treatment technology. To tackle this issue, the authors have set an aim of designing a helio device and creating an oil-containing wastes treatment method based on it to extract oil products. Considering a wide spread in the composition and properties of potential oil sludge raw materials and their tendency for either formation of stable emulsions or phase separation, we have conducted in-depth modern physical and chemical studies and defined the need to develop a commercial oil-containing wastes purification method. We have designed the device, in which oil product hydrocarbons undergo thermal treatment using solar energy without prejudice to their chemical structure. Following oil-containing wastes purification using solar energy, the particulate load in soil does not exceed 6.65-6.79% and the absolute molecular weight of hydrocarbons approaches that of bitumen. The oil-containing wastes purification method developed solves an important environmental issue of oil-containing wastes recycling, promotes recovery and prevents degradation of natural complexes, and reduces soil and water pollution.

scholarly journals Purification of Oil-Containing Waste Using Solar Energy

2021 ◽  
Vol 25 (1) ◽  
pp. 161-175
Author(s):  
Мaral Abdibattayeva ◽  
Kylyshbay Bissenov ◽  
Zheniskul Zhubandykova ◽  
Raigul Orynbassar ◽  
Lyazzat Tastanova ◽  
...  
Keyword(s):  
Solar Energy ◽  
Raw Materials ◽  
Treatment Method ◽  
Environmental Issue ◽  
Treatment Technology ◽  
Purification Method ◽  
Environmental Setting ◽  
Chemical Studies ◽  
Physical And Chemical ◽  
Commercial Oil

Abstract Significant oil losses in oil-containing wastes and their adverse impact on the region environmental setting bring about the need to develop an oil-containing wastes treatment technology. To tackle this issue, the authors have set an aim of designing a helio device and creating an oil-containing wastes treatment method based on it to extract oil products. Considering a widespread in the composition and properties of potential oil sludge raw materials and their tendency for either formation of stable emulsions or phase separation, we have conducted in-depth modern physical and chemical studies and defined the need to develop a commercial oil-containing wastes purification method. We have designed the device, in which oil product hydrocarbons undergo thermal treatment using solar energy. Following oil-containing wastes purification using solar energy, the particulate load in soil does not exceed 6.65–6.79 % and the absolute molecular weight of hydrocarbons approaches that of bitumen. The developed oil-containing wastes purification method solves an important environmental issue of oil-containing wastes recycling, promotes recovery, and prevents degradation of natural complexes, and reduces soil and water pollution.

scholarly journals Study of biohydrometallurgical technology used to recover gold from ore at a gold-recovery plant

2021 ◽  
Vol 316 (1) ◽  
pp. 24-31
Author(s):  
A. K. Koizhanova ◽  
◽  
G. V. Sedelnikova ◽  
M. B. Erdenova ◽  
A. N. Berkinbaeva ◽  
...  
Keyword(s):  
Sodium Hypochlorite ◽  
Raw Materials ◽  
Test Sample ◽  
Gold Recovery ◽  
Sodium Hypochlorite Solution ◽  
Mineral Raw Materials ◽  
X Ray ◽  
Acidophilic Bacteria ◽  
Chemical Studies ◽  
Physical And Chemical

The article contains the results of the studies performed for the biochemical eхtraction modes for mineral raw materials using thionic bacteria Acidithiobacillusferrooxidans of a certain strain capable to oxidize sulfide minerals. A representative sample of mineral raw materials was taken, and its physical and chemical studies were performed. The optimal conditions to leach mineral raw materials with biochemical solvents based on various factors (temperature, S:W) were established. Modern physical and chemical methods of analysis were used during the study: X-ray fluorescence, X-ray phase, mineralogical, electron probe, chemical analyzes, IR methods to study the phase composition of ores and changes in the structure of minerals. The chemical composition of the ore sample quartered and crushed up to a size of -0.074 mm is as follows, wt. %: SiO2 - 60.11; Al2O3 6.2; Zn 0.016; Cu 0.10; Fe - 2.5; S 0.50; Au - 3.67 g/t and Ag - 3.2 g/t. This paper discusses various options for agitational leaching with acid pre-wash, bacterial dissection and oxidative decomposition of minerals using sodium hypochlorite. The results obtained showed that the most effective method to increase the gold recovery is to perform bacterial oxidation of ore using acidophilic bacteria At. Ferrooxidans preliminarily adapted to the material composition of the test sample, followed by treatment with sodium hypochlorite solution and cyanidation. Biohydrometallurgical ore processing provides high gold recovery (78.1%).

scholarly journals New production technology for healthy nutrition using local raw materials

2020 ◽  
Vol 27 ◽  
pp. 00059
Author(s):  
Antonina A. Ryadinskaya ◽  
Natalya B. Ordina ◽  
Ivan A. Koshchaev ◽  
Kristina V. Mezinova ◽  
Daria A. Zakharova
Keyword(s):  
Raw Materials ◽  
Microbiological Analysis ◽  
New Production ◽  
Plant Materials ◽  
Healthy Nutrition ◽  
Organoleptic Characteristics ◽  
Local Plant ◽  
Chemical Studies ◽  
Efficient Processing ◽  
Physical And Chemical

The article deals with the issue of efficient processing of local plant materials. The possibility of using the pulp of Michurinskaya pumpkin grown in Belgorod region for producing candied fruit is discussed. The product is characterized by high organoleptic characteristics. Results of the physical and chemical studies and microbiological analysis are consistent with the standardized indicators. The functional properties of the candied fruit were identified and described.

On the diagnostics of Adonis L. species (Ranunculaceae) of the Russian flora

2020 ◽  
pp. 3-14
Author(s):  
Aleksandr Luferov
Keyword(s):  
Raw Materials ◽  
Natural Populations ◽  
Structural Features ◽  
Biologically Active ◽  
Scientific Medicine ◽  
Diagnostic Features ◽  
Plant Raw Materials ◽  
Similar Chemical ◽  
Chemical Studies ◽  
Alternative Sources

The article provides brief information about cardiotonic, sedative, cytostatic, diuretic, and antibacterial effects of biologically active compounds of Adonis L. (Ranunculaceae) species. Chemical studies allowed to identify the cardiac glycosides, or cardenolides: or cardenolides: adontoxin, adonitol, adonitoxigenin, acetyldigitoxin and others. In scientific medicine, it is currently allowed to use Adonis vernalis L. Other types of Adonis have a similar chemical composition and are offered as substitutes for this official species, for example, Adonis apennina L. Many Adonis species have limited natural resources, and in some regions are rare, requiring conservation of their natural populations. The search for alternative sources of medicinal plant raw materials, based on this, is relevant. The experimental part of our research was carried out using the morphological and geographical method with the involvement of information on ecology and phenology. For the first time summarizes the diagnostic features of Adonis flora of Russian flora. Previously unknown structural features (shape and size of anthers) were identified that characterize the subgenera Adonanthe and Adonis. Taxonomic study of the genus Adonis of the Russian flora allowed us to determine its species composition, clarify its systematic affiliation, and nomenclature synonyms. 9 species were identified. Of these, 6 are perennials belonging to the subgenus Adonanthe, section Consiligo, which includes 2 subsections: Amurenses (2 species) and Vernales, which is differentiated into 2 rows: Apenninae (2 species) and Vernales (2 species). Subgenus Adonis is represented by 2 sections: Adonis (1 species) and Lophocarpa with sections Aestivales (1 species) and Dentatae (1 species). For all the considered species and varieties, the main distribution areas are given. A key has been compiled to determine the wild Adonis species distributed in Russia.

Diesel Biofuels - Preparation, Characterization and Testing

2008 ◽  
Vol 59 (11) ◽  
Author(s):  
Cristina Dusescu ◽  
Anca Borcea ◽  
Vasile Matei ◽  
Ion Popa ◽  
Irina Gabriela Radulescu
Keyword(s):  
Vegetable Oils ◽  
Sunflower Oil ◽  
Raw Materials ◽  
Chemical Properties ◽  
Soya Bean ◽  
Production Unit ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
And Chemical Properties

The present paper studies biodiesel samples preparation by transesterification and compares their physical and chemical properties (biofuels prepared from different raw materials - vegetable oils: sunflower oil, crocus oil and soya bean oil) and the biodegradability degree, as well as the possibilities of the integration of such production unit in industrial diagram of auto fuels production.

scholarly journals Waste and Solar Energy: An Eco-Friendly Way for Glass Melting

2021 ◽  
Vol 5 (2) ◽  
pp. 16
Author(s):  
Isabel Padilla ◽  
Maximina Romero ◽  
José I. Robla ◽  
Aurora López-Delgado
Keyword(s):  
Solar Energy ◽  
Environmental Sustainability ◽  
Raw Materials ◽  
Glass Melting ◽  
Glass Network ◽  
X Ray Diffraction ◽  
X Ray ◽  
Concentrated Solar Energy ◽  
Calcium Source ◽  
The Aluminum Industry

In this work, concentrated solar energy (CSE) was applied to an energy-intensive process such as the vitrification of waste with the aim of manufacturing glasses. Different types of waste were used as raw materials: a hazardous waste from the aluminum industry as aluminum source; two residues from the food industry (eggshell and mussel shell) and dolomite ore as calcium source; quartz sand was also employed as glass network former. The use of CSE allowed obtaining glasses in the SiO2-Al2O3-CaO system at exposure time as short as 15 min. The raw materials, their mixtures, and the resulting glasses were characterized by means of X-ray fluorescence, X-ray diffraction, and differential thermal analysis. The feasibility of combining a renewable energy, as solar energy and different waste for the manufacture of glasses, would highly contribute to circular economy and environmental sustainability.

scholarly journals Physical and Chemical Studies on Ceruloplasmin

1965 ◽  
Vol 240 (5) ◽  
pp. 1974-1978 ◽  
Author(s):  
Philip Aisen ◽  
Anatol G. Morell
Keyword(s):  
Chemical Studies ◽  
Physical And Chemical
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