The Effect of Thermal Activation of Glauconite on its Water-Retaining and Oil Capacity

Нифталиев, С. И.; Перегудов, Ю. С.; Мокшина, Н. Я.; Мэжри, Р.; Саранов, И. А.

doi:10.18412/1816-0395-2019-7-42-47

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…Ранее нами было определено, что лучшие результаты по сорбции нефтепродуктов показала фракция глауконита с размером частиц 0,045-0,1 мм, и показано, что термическая активация глауконита ведёт к снижению его водопоглощения и увеличению его нефтепоглощения [20]. Термическая активация образцов глауконита (фракция от 0,045 до 0,1 мм) с 5 мас.% Fе 2 О 3 осуществлялась в электропечи ЭКПС-10 при температуре 400 °С.…”

Section: материалы и методыunclassified

“…Стеариновая кислота -это насыщенная высшая жирная кислота, представляющая собой твёрдое кристаллическое вещество белого цвета, которое не имеет вкуса, запаха и не растворяется в воде, растворима в эфире. Температура плавления и кипения -69,6 и 376,1 °С соответственно [20].…”

Section: материалы и методыunclassified

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Technology for obtaining modified oil sorbents

Mejri

Peregudov

Горбунова

2021

Vestn. Voronež. gos. univ. inž. tehnol.

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Expediency of using natural glauconite material as a basis for the production of an environmentally friendly sorbent with hydrophobic and magnetic properties for liquidating oil and oil products spills mechanically and using a magnetic field has been substantiated and experimentally proved. Fractional, elemental and oxide compositions of the original mineral have been studied. The structure of glauconite fraction 0.045-0.1 mm has been investigated by transmission electron microscopy. It was found that the surface of the sample particles is heterogeneous with a large number of pores and cracks. Based on the experimental data, the optimal conditions for the production and use of powder and granular sorbents based on glauconite with specified properties were determined, at which a high degree of recovery (more than 90%) of oil with water and hard surfaces. The optimum temperature for obtaining a magnetic oil sorbent is 400 °C. The doses of stearic acid and iron (III) oxide were established at 5 wt. %, which provide hydrophobicity and magnetic properties to the synthesized sorbent. A high degree of oil (97%) and oil (98%) recovery when using a sorbent is achieved at a ratio of 1: 10 to sorbate. To eliminate oil and oil product spills, it is proposed to use granular ferromagnetic sorbents obtained by introducing carboxymethyl cellulose into the modified glauconite composition. oil and oil products granular sorbent increases in comparison with the original mineral by 1.2–2.2 times. Technological schemes for obtaining ferromagnetic hydrophobic and granular sorbents based on glauconite for collecting oil and oil products from water and solid surfaces have been developed. The synthesized sorbents are characterized by high efficiency, low cost, and environmental friendliness.

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Section: материалы и методыunclassified

Technology for obtaining modified oil sorbents

Mejri

Peregudov

Горбунова

2021

Vestn. Voronež. gos. univ. inž. tehnol.

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Magnetic Oil Sorbents based on Technogenic and Natural Inorganic Materials

Peregudov

2021

Èkol. prom. Ross.

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The results of the study of the fractional composition, physicochemical and sorption characteristics of technological calcium carbonate and glauconite are presented. It is shown that the fraction of technological chalk with a particle size of more than 0.125 mm absorbs the greatest amount of oil and gasoline. The oil is better absorbed by the fraction of chalk with a particle size of 0.1–0.25 mm. For glauconite, oil sorption increases with decreasing particle size. The complete absorption of oil on the solid surface by the glauconite sorbent occurred within 2 min and about 10 min by the carbonate sorbent; the recovery rates were 99% and 90%, respectively. The best results in terms of the degree of water purification from oil were shown by a carbonate sorbent with a particle size of more than 0.125 mm – 83 % and glauconite with a particle size of 0.045–0.1 mm – 90% with an oil film thickness of 0.5 mm. The degree of water purification from oil was 80 % for the carbonate sorbent and 93 % for the glauconite one with an oil film thickness of 0.5 mm. With an increase in the thickness of the oil and oil films, the degree of water purification decreases.

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Assessing the effectiveness of local organic materials as sorbents for oil spill response in Arctic waters

Vasileva,

Trishina

2024

Vestnik MGTU

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The paper presents the results of a comparative assessment of the sorption characteristics of regional natural raw materials of organic origin: sphagnum moss (Sphаgnum palustre L.), fucus algae (Fucus vesiclousus), a composite based on them and peat in comparison with the synthetic sorbent OilSorb used in the practice of emergency rescue units to eliminate accidental oil spills. Experimental data have been obtained on potential pollutants in the Barents Sea (oil ARCO and diesel fuel) and the water capacity of sorbents for standard conditions at temperatures of 21–23 °C according to GOST 33627-2015 and in the temperature range of 10–12 °C typical for the summer period on the Kola Peninsula. The sorption characteristics of the materials under study have been evaluated in the "sea water – petroleum product" system, which simulates a real oil spill in the marine area. Tests in a model system simulating real conditions demonstrate significant changes in the efficiency of using sorption materials shown by them under standard conditions. The study has established the dynamics of the distribution of sorbed oil products and water in the materials under consideration, as well as residual oil products in the water of the "sea water – ARCO oil" and "sea water – diesel fuel" systems at different exposure times. During an exposure time of 30, 60, 90 minutes under the conditions of a system simulating a real oil spill in the water area, the material based on sphagnum moss has the most effective and time-stable indicators of sorption of oil products.

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The Effect of Thermal Activation of Glauconite on its Water-Retaining and Oil Capacity

Cited by 3 publications

References 4 publications

Technology for obtaining modified oil sorbents

Technology for obtaining modified oil sorbents

Magnetic Oil Sorbents based on Technogenic and Natural Inorganic Materials

Assessing the effectiveness of local organic materials as sorbents for oil spill response in Arctic waters

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