The device layers and transport facilities of hemihydrate phosphogypsum (waste byproduct of the production of nitrogen-phosphorus fertilizers)

Кочетков, А. В.; Shchegoleva, Natal’ya; Korotkovskiy, Sergey; Talalai, Victor; Vasilyev, Yury; Shashkov, Igor

doi:10.15862/18sats119

Cited by 6 publications

(5 citation statements)

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“…The possibility of using phosphogypsum in highway construction has also been confirmed by Russian researchers whereby Kochetkov et al [65] studied the feasibility of using calcium sulfate hemihydrate for construction, reconstruction and repair of highways and Gerasimov et al [66] studied the feasibility of using dried phosphogypsum as a component of granular asphalt mix.…”

Section: Road Constructionmentioning

confidence: 86%

Utilization of Gypsum-Bearing Wastes in Materials of the Construction Industry and Other Areas

Alfimova

Pirieva

Titenko

2021

Construction Materials and Products

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rational environmental management is one of the priorities of the technological development of the Russian Federation and most countries of the world. Particularly important in this area is the work undertaken with previously generated and accumulated waste, a whole group of which is gypsum-bearing wastes (GBW), which includes by-products of various industries: phosphogypsum, borogypsum, chlorogypsum, ferrogypsum, citrogypsum, vitamin gypsum, etc. GBW features are similar compositions, prevalence, perennial volumes of stored reserves with stable dynamics of annual growth. This determines the relevance of research on the development of a unified methodology for converting GBW of various types into target products particularly for construction purposes, providing maximum energy efficiency and minimal generation of secondary waste. The starting point of the research is the monitoring of approaches developed by the scientific community which are presented in the article. It is shown that researchers are exploring several main areas of GBW conversion: components of Portland cement and clinker; single and multicomponent binders; direct raw materials for the production of building materials; and road construction. The latter two directions have the greatest potential capacity for the consumption of GBW. The general level of research on the issue is not exhaustive, but has the potential to improve on existing methods of processing and application and promote the search for new and more efficient methods

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Section: Road Constructionmentioning

confidence: 86%

Utilization of Gypsum-Bearing Wastes in Materials of the Construction Industry and Other Areas

Alfimova

Pirieva

Titenko

2021

Construction Materials and Products

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“…The use of phosphogypsum for the production of composite materials based on asphaltic binders has been common, as well as in road construction for the construction of road bases and as an additive to asphalt concrete mixtures [34,[48][49][50][51][52]. The advantage of such use of phosphogypsum is the following [53]: roads with the use of phosphogypsum are 30% cheaper than roads with the use of traditional technologies and can be laid in marshy areas. Thus, at the first stage of road construction, it is possible to make the intermediate type, making bases from phosphogypsum, and thereafter laying other constructive layers from rubble and asphalt concrete.…”

Section: Phosphogypsum Recycling In Various Industry Fieldsmentioning

confidence: 99%

Phosphogypsum Recycling: A Review of Environmental Issues, Current Trends, and Prospects

et al. 2021

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The problem of recycling and storage of phosphogypsum is topical for many countries around the world, as it is associated with environmental problems of pollution of water bodies, land, and atmosphere. Therefore, this paper analyzes the directions of phosphogypsum recycling and possible alternatives to its use. The main disadvantages of the existing methods of phosphogypsum processing were identified and trends in this waste management were also considered. Through the VOSviewer programme, a visualization of cluster interconnections was carried out in research publications of various fields of phosphogypsum utilization. Five clusters were formed: a red cluster—phosphogypsum recycling in the construction industry; green cluster—radiation pollution problem of phosphogypsum and phosphate fertilizers; yellow cluster—monitoring migration of phosphogypsum components in the ecosystem, with the mobile forms of heavy metals and their inflow into aquifers from phosphogypsum dumps; blue cluster—use of phosphogypsum in agriculture as an ameliorant and a component of fertilizer; and a purple cluster—the impact of phosphogypsum on microorganisms, particularly in bioremediation processes. Under the proposed integrated biochemical approach, the use of various bioprocesses of phosphogypsum recovery from waste dumps and implementation of new biotechnological solutions for processing phosphorus raw materials are presented.

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“…It allows paving reliable and long-life roads. The construction is five times more firm (Kochetkov, 2019). However, that report had no information on phosphogypsum composition and its ecological safety.…”

Section: Introductionmentioning

confidence: 99%

Geoecological Analysis of Threats of Using Phosphogypsum in Construction of Roads

Krainiuk¹,

Buts²,

Ponomarenko³

et al. 2023

Journ. Geol., Geogr., and Geoec..

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The problem of recycling and storage of phosphogypsum is relevant for many coun- tries of the world, as it is associated with environmental problems such as pollution of water bodies, soil and atmosphere. This study analyzes the possibility of using phosphogypsum for the construction of roads. The objective was a geoecological analysis of the danger of phos-phogypsum stockpiles and a study of the possibility of using phosphogypsum in road construction to solve the problem of its accumulation in the environment. The chemical composition of phosphogypsum samples of the Sumyhimprom and Rivneazot companies was studied using the method of X-ray diffractometry. The content of heavy metals (HM) was analyzed using atomic absorption spectros-copy. An extremely high level of chromium was determined, accounting for more than 20-33 Maximum Concentration Values (MCV). The content of cuprum in the phosphogypsum samples of Rivneazot was 2 MCVs. The contents of other heavy metals did not exceed the MCVs, the synergistic effect should be taken into account. Migration of heavy metals is one of the main problems associated with phosphogypsum stockpiles. The increased acidity of phosphogypsum promotes the formation of soluble HM compounds. Depending on the solubility of toxicants, they accumulate in the ecosystem or migrate, dissolve, and enter plants. The traditional methods of storing phosphogypsum, both from an environmental and economic points of view, are less acceptable than the methods of its recycling and reuse in various sectors of the national economy. The paper theoretically substantiates that the reuse of accumulated phosphogypsum and the implementation of new technological solutions in road construction would reduce the level of technogenic loading that phos- phogypsum imposes on the environment. Based on the analysis of the content of heavy metals and the development of concentration logarithmic diagrams, mobile forms of metals were studied and the harmful effect of metals leaching from phosphogypsum was considered. We determined the positions of toxic substances in the engineering road construction – environment. We recommended dividing hydroxides and hydroxocomplexes of heavy and toxic metals into three groups according to their solubility, having the ability to migrate in acidic, neutral and alkaline environments, respectively. Strict regulations are needed to protect soil cover in areas with acidic soils. We grouped soils on which it is not recommended to use engineered road structures with phosphohypsum due to increased migration of HMs into the ecosystem: sandy; soils rich in humus components, acidic soils (sod-podzolic) or in case of existing proba- bility of an increase in soil acidity (unorganized ingress of industrial waste, acid rain, etc.); acidic soils salinized with chlorides; soils containing ammonia; soils containing sulfates.

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The device layers and transport facilities of hemihydrate phosphogypsum (waste byproduct of the production of nitrogen-phosphorus fertilizers)

Cited by 6 publications

References 1 publication

Utilization of Gypsum-Bearing Wastes in Materials of the Construction Industry and Other Areas

Utilization of Gypsum-Bearing Wastes in Materials of the Construction Industry and Other Areas

Phosphogypsum Recycling: A Review of Environmental Issues, Current Trends, and Prospects

Geoecological Analysis of Threats of Using Phosphogypsum in Construction of Roads

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