Utilization  of "red mud" being a part of new effective adsorbent in water treatment

Kyrii, Svitlana; Косогіна, Ірина Володимирівна; Астрелін, І. М.; Mosiyuk, V. Yu.

doi:10.20535/2218-93002112017121418

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…To improve the efficiency of the method of destabilization of stable aqueous suspensions of wastewater, expanding the temperature range of hydrolysis processes are increasingly using complex coagulants, which contain both iron and aluminium [62,63].…”

Section: The Usage Of Reagents From Secondary Raw Materials In Coagulmentioning

confidence: 99%

Utilization Processing of Waste of Alumina Production Into Water Treatment Reagents

Астрелін¹,

Косогіна²,

Kyrii³

et al. 2020

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Continuous accumulation of waste from alumina production "red mud" leads to contamination of large land areas, reservoirs, and soils and is a potential threat of environmental catastrophe, that leads to the urgent need to find and implement rational ways of its recycling. The most studied areas for alumina wastes recycling include the production of building materials and metals extraction. Red mud acts as a binder filler in the field of production of building materials. Products based on such filler have higher heat resistance, strength and density compared to the control samples. The obtained concrete samples are more resistant to negative temperatures due to the high alkalinity of the filler. However, analyzing the results of existing studies about precious metals extraction from the red mud, its usage in the construction industry, as soil improvers etc., we can conclude that today there are no economically and environmentally justified technologies that would allow red mud utilization in industrial-scale. This is prevented by its high alkalinity, small particle size, complex chemical and mineralogical composition. Red mud is mainly composed of iron and aluminium oxides, which characterizes it as an attractive secondary raw material. Based on a critical analysis of the results of the work on the disposal of red mud by foreign and domestic researchers, it is possible to outline a promising direction of red mud recycling. Namely, it is the creation of water treatment reagents that can be effective for the removal of organic pollutants of natural and human-made origin. Creating water treatment reagents with the full use of red mud as a raw material can help to solve the problem of accumulation of the latter and provide inexpensive and effective reagents in the relevant field.

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Section: The Usage Of Reagents From Secondary Raw Materials In Coagulmentioning

confidence: 99%

Utilization Processing of Waste of Alumina Production Into Water Treatment Reagents

Астрелін¹,

Косогіна²,

Kyrii³

et al. 2020

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Prospects for the Catalytic Application of Red Mud in CO Oxidation

Yanushevska¹,

Dontsova²,

Kosogina³

et al. 2021

Springer Proceedings in Physics

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A State of Art and Prospects of Red Mud Management

Mikulionok

2024

Energ. Tech. & Res. Sav.

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The basic data on the global volumes and composition of red mud, which is a highly alkaline waste of the aluminum industry, namely the Bayer process – technology for the extraction and purification of alumina (aluminum oxide) from bauxite are presented. The analysis of the current state of red mud management allows to distinguish the following main directions: physical-mechanical, physical-chemical, biological and combined methods of handling it, which are used in agriculture (chemical land reclamation (increasing soil pH), use as fertilizers); building materials industry (cement, construction mortar, expanded clay, fireclay, bricks, building blocks, ceramic tiles, concrete alkali-acid-resistant products, refractories); road construction (soil strengthening for the lower layers of the road surface, asphalt); production of other materials (sorbents, catalysts, flocculants, pigments, caustic soda, filler for polymer composites); ferrous and non-ferrous metallurgy. Currently, the most common methods of red mud utilization are its direct use, use in the construction materials industry, as well as pyrometallurgical technologies, as a result of which iron or its alloys are obtained, as well as slag, from which alumina, titanium, rare earth metals can be extracted or which is processed into various building materials. The most expedient method of red mud disposal is either direct use of red mud with minimal changes in its properties, or complex processing with maximum yield of target components and minimization of new waste generation. At the same time, one of the promising ways of red mud management can be its biological processing with the help of plants and microbes, which will help reduce the dangerous man-made load from red mud in the territory adjacent to bauxite processing plants. Bibl. 113, Fig. 2.

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Utilization of "red mud" being a part of new effective adsorbent in water treatment

Cited by 3 publications

References 15 publications

Utilization Processing of Waste of Alumina Production Into Water Treatment Reagents

Utilization Processing of Waste of Alumina Production Into Water Treatment Reagents

Prospects for the Catalytic Application of Red Mud in CO Oxidation

A State of Art and Prospects of Red Mud Management

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