Collaborative Utilization Status of Red Mud and Phosphogypsum: …

In China, the domestic utilization of phosphogypsum is mainly in building materials, industry, and agriculture. As shown in Fig. 4, from 2015 to 2019, in China, phosphogypsum was mainly used in terms of external supply, cement retarder and gypsum board, filling, etc. Thus, China's use of phosphogypsum is still at a low level and low value stage.

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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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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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Application of phosphogypsum in soilization: a review

Currently, phosphogypsum is mainly used for the direct preparation of construction materials and chemical auxiliary materials, but the amount of phosphogypsum used in this process is small, so its ...

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Phosphogypsum Recycling: A Review of …

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 ...

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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 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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Study on the Mechanical Properties of Cast-In-Situ Phosphogypsum …

The works [20,21,22] introduced the early-stage development of several phosphogypsum blocks and the current applications of unburned phosphogypsum permeable bricks. The works ... The raw materials of cast-in-situ phosphogypsum are mainly phosphogypsum, phosphorus slag powder, hydrated lime, cement, a retarder and a water …

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Exploring the potential reuse of phosphogypsum: A waste or a …

Phosphogypsum (PG), the main industrial by-product of phosphate fertilizer industry, primarily consists of calcium sulfate dihydrate. ... Although PG is mainly composed of calcium and sulfur, it contains several impurities such as phosphates, fluorides, sulfates, heavy metals, ... Currently, there are two main management strategies used for PG ...

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A comparative assessment of the suitability of phosphogypsum …

Currently, phosphogypsum is mainly used for the direct preparation of construction materials and chemical auxiliary materials, but the amount of phosphogypsum used in this process is small, so its ...

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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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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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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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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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(PDF) By-product Phosphogypsum Valorisation …

Phosphogypsum (PG) is the most significant solid waste in the world. ... The raw material used during the process consists mainly of phos- ... Currently, the main applications of PG, according to ...

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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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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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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: Properties and Potential Use in Agriculture

Soil is among the most important natural resources that can be degraded in varied forms. Soil degradation is a change in the soil's health that reduces its ability to provide goods and services (FAO and ITPS 2015). Population and income growth are expected to necessitate a 70% increase in global food production by 2050 an…

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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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Reuse of phosphogypsum as hemihydrate gypsum: The

Phosphogypsum is an industrial byproduct generated in the wet phosphoric acid process (Pinto et al., 2020; Jiang et al., 2019; Taher, 2007), and its output accounts for approximately 4-6 times the mass of produced H 3 PO 4 (Kuzmanovic et al., 2021; Yang et al., 2016).The wet process technique is the main method used in acid production (Wang and Jia, …

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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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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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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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Environmentally Friendly Concept of Phosphogypsum Recycling …

The report recommended to continue regular monitoring and seek further solutions for possible re-use of phosphogypsum. Currently, over 50–65 million tons of phosphogypsum are accumulated in Ukraine. ... The aggregate composition of phosphogypsum is mainly comprised of particles sized 0.15–0.20 mm (65–70%) (Wolicka 2008; Shuisky et al ...

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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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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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Life cycle environmental and economic assessment of Phosphogypsum

However, the utilization of PG still mainly relies on basic utilization methods, such as being used as a cement retarder, in building materials, for road construction, or mine filling, currently (Cui et al., 2022).Due to factors such as limited regional market demand, low product added value, and restricted transportation radius, relying solely on PG-based building …

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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 gypsum materials for resource utilization.

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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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