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Phosphogypsum-based building materials: Resource utilization

The current status, limitations, and development of resource utilization of PG in building materials are reviewed. ... Poland and South Africa developed the co-production of sulphuric acid and cement from natural gypsum, hard gypsum and phosphogypsum [11]. PG was used in Japan in 1930s [12], it is mainly used to produce gypsum building ...

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Present Situation and Development of Building Material …

product. Due to the complex and harmful impurity components, phosphogypsum cannot be directly used. At present, the global phosphogypsum accumulation has reached 6 billion tons and is still growing at 150 million tons per year. China is a by-product country of phosphogypsum. How to use phosphogypsum efficiently has become a big problem in China.

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Phosphogypsum use in a circular economy

Although phosphogypsum is still generally disposed of as waste, industry attitudes are changing and greater use of phosphogypsum will be expected in a circular economy. The …

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Phosphogypsum: potential uses and problems – a review

Phosphoric acid is mainly used in the production of phosphorus fertilizers: DAP ... [14]. Currently, in Northern Kazakhstan, PG is used for fertilization ... ation dose caused by phosphogypsum ...

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Phosphogypsum use in a circular economy

PHOSPHOGYPSUM USE. Phosphogypsum use in a circular economy ... Billions of tonnes of this material are currently being managed at great cost within giant waste stacks. Although gypsum is the main constituent of phosphogypsum, a range of other impurities can also be present, including residual phosphate, fluoride, organic matter, iron, aluminium ...

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Enhanced absorption of SO2 from phosphogypsum …

Phosphogypsum (PG) is a major industrial by-product of wet process phosphoric acid production, and untreated PG stockpiled on land will cause severe environmental pollution. Thermal treatment of PG is currently the mainstream treatment method PG can be thermally decomposed to produce CaO, and the decomposition process produces large amounts of SO …

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Review Article Recent research in utilization of phosphogypsum …

Phosphogypsum (PG) is a byproduct of the wet manufacturing process for phosphoric acid and is considered an industrial waste material. Around 5 tonnes of PG are generated for every 1 tonne of phosphoric acid production [1].As the phosphorus chemical sector has expanded rapidly in countries like the Middle East, Africa, Russia, the United States, and …

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Rare Earths' Recovery from Phosphogypsum: An Overview on

The field of REE applications is extensive and their demand is high and mainly dominated by the magnetic, catalytic, metallurgical and polishing industries as shown in Figure 1 . From their initial time of discovery, the utilization of REEs has developed from mischmetal to high purity separated REE metal used in current advanced technologies.

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Value-added utilization of phosphogypsum industrial by-products …

As described above, the current industrial solid waste of phosphogypsum is mainly used in concrete that is of low strength grade, which severely limits its uses. So, there is a possibility of developing a kind of high-strength phosphogypsum-based concrete to enable its use in practical engineering, thereby maximizing utilization efficiency for ...

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Phosphogypsum – An Industrial Byproduct with Value

Phosphogypsum has been studied for use in cement, bricks, plaster, and more, often with added benefits over materials. When used as a replacement for limestone, for example, phosphogypsum has proven to offer a better roadbed.

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Chemical and radiochemical characterization of...

The current study presents the results of the chemical and the radiochemical characterization of phosphogypsum obtained from the former Wizów Chemical Plant in Poland. Phosphogypsum is a residue obtained from phosphoric acid production. ... Phosphogypsum mainly contains calcium sulfate dihydrate and impurities originating from the source ...

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The Generation Process, Impurity Removal and High-Value

The natural gypsum is mainly used as a cement manufacturing retarder [1,2,3], while ... currently there is a great interest in using PG after the removal of impurities as an alternative raw ... M.S. Assessment of the radiological impacts of treated phosphogypsum used as the main constituent of building materials in Jordan. Environ. ...

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Phosphogypsum Recycling: A Review of Environmental Issues, Current

The use of phosphogypsum for road construction has been suspended because of the short duration of the roadway covering and the possibility of harmful components of phosphogypsum getting into the environment. In addition, the use of phosphogypsum in the construction materials and cement industry has been slowed down by the economic crisis. 2.1.

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(PDF) Phosphogypsum Processing Method

The comparison of the developed phosphogypsum processing method with well-known national and foreign analogues showed that its cost-efficiency is 2-3 times higher; the area necessary for the plant ...

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Phosphogypsum: potential uses and problems – a review

Phosphogypsum is used in agriculture for soil amendment or as fertilizer, as well as in the brick and cement industry, and in road construction. Phosphogypsum (PG) is a waste product of the...

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Recycling phosphogypsum in road construction materials and …

Phosphogypsum mainly consists of silt-sized gypsum crystals. These gypsum crystals are softly aggregated, ... Currently, researchers mostly use inorganic acids as leaching agents to leach REEs in PG. Strong acids, such as nitric acid and sulfuric acid, have attracted the attention of researchers because of their high leaching and recovery rates ...

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Status and development trends of phosphogypsum utilization in …

Phosphogypsum (PG) is a byproduct of the wet phosphoric acid process, with calcium sulfate as its primary component. Approximately 4.5–5.0 t of PG are generated per ton of phosphoric acid produced (Li & Gu, 2016).Globally, the cumulative stockpiles of PG have reached 6 billion t, with an annual increase of 200 million t (Ou et al., 2021).By the end of 2020, PG …

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TENORM: Fertilizer and Fertilizer Production Wastes | US EPA

The greatest use of phosphogypsum is in agricultural applications. Researchers proposing new uses must file an application with EPA. Phosphogypsum has been used in agriculture as a source of calcium and sulfur for soils that are deficient in these elements. When the phosphogypsum is used as a fertilizer, it is simply spread on the top of the soil.

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The treatment of phosphogypsum leachate is more urgent than

Phosphogypsum(PG) is one of the typical bulk industrial solid wastes generated in the phosphate chemical industry. Due to its huge production volume and immature resource treatment technology, a large amount of PG can only be stored and disposed in slag yards, and its impact on the ecological environment is becoming increasingly significant during long-term …

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Phosphogypsum – An Industrial Byproduct with Value

The US EPA currently bans the use of phosphogypsum, except in cases where the material does not exceed an average radium-226 concentration of less than 10 picocuries per gram, and will be used as a soil amendment, according to the Florida Industrial and Phosphate Research Institute. ...

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Phosphogypsum in a circular economy

A recently published study by the International Fertilizer Association (IFA) reveals that up to 25 percent of phosphogypsum produced annually is now reused for a range of …

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Phosphogypsum circular economy considerations: A critical …

Phosphogypsum circular economy considerations: A critical review from more than 65 storage sites worldwide ... which is a key ingredient in fertilizer. It is mainly found in marine sedimentary deposits, igneous rocks, and guano. ... it is noteworthy that in case of fresh PG changes in the current phosphoric acid production processes (sulfuric ...

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Sustainable Utilization of Phosphogypsum in Multi …

This study contributes to sustainable construction practices by exploring the use of phosphogypsum, a commonly discarded byproduct, in the production of recycled aggregates. Addressing both environmental and …

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Soil Processes and Chemical Transport

Phosphogypsum is composed mainly of gypsum (Ca-SO4-2H20), but contains impurities of environmental concern such as F-, acids, trace elements, and naturally occurring radionuclides, ... F- and other constituents from the PG used in the current experiment. MATERIALS AND METHODS Collection of Phosphogypsum Samples

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Properties, Purification, and Applications of Phosphogypsum: A

Phosphoric acid is mainly utilized in the fertiliser industry to produce the phosphorous fertilisers monoammonium phosphate (MAP) and diammonium phosphate …

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Utilization path of bulk industrial solid waste: A review on the multi

Currently, more than 280 million tons of phosphogypsum every year in the world is currently being discarded in coastal areas or elsewhere and stored at production sites as stockpiles, with about ...

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Application of phosphogypsum in soilization: a review

Phosphogypsum can be used as a conditioner to improve the physical and chemical characteristics of soil, delay soil degradation, and passivate heavy metals to replace natural …

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Phosphogypsum Recycling: A Review of

The current growth rate of phosphogypsum is estimated at 200 million tons per year, with a mass utilization rate of 10–15% according to the most optimistic forecasts. ... Analysis of Trends in Phosphogypsum Use. ... Phosphogypsum in mixtures with other components is mainly used for the construction of road bases [55,56,57], because ...

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Application of phosphogypsum in soilization: a review

Phosphogypsum is the most significant industrial solid waste in the world. Phosphogypsum has a complex composition and its traditional storage methods occupy large areas of land and also damage the environment. Currently, phosphogypsum is mainly used for the direct preparation of construction materials and chemical auxiliary materials, but the amount of phosphogypsum …

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Phosphogypsum

Phosphogypsum is a solid waste byproduct from processing phosphate ore to make phosphoric acid that is later used in fertilizer. The phosphate ore and the resulting phosphogypsum contain radium, which decays to form radon gas. Both radium and radon are rad

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