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Phosphogypsum: joining the circular economy?

About 4-6 tonnes of PG are generated as a waste by-product for every tonne of phosphoric acid produced. This corresponds to annual PG production of around 250 million …

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Global phosphorus supply chain dynamics: Assessing regional impact …

Phosphogypsum production rates will follow fertilizer production rates, recording a sevenfold increase by 2050 compared to 1961 rates and reaching 438 million tons per year …

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Global Phosphogypsum Market 2023 by Manufacturers, …

Asia-Pacific, particularly China, leads the global Phosphogypsum market, with robust domestic demand, supportive policies, and a strong manufacturing base. ... Head Office …

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Indirect mineral carbonation of phosphogypsum for CO

Phosphogypsum (PG), a sort of solid waste mainly made up of CaSO 4 ·2H 2 O, results from phosphoric acid production through wet process. Every ton of phosphoric acid …

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Closing the upcoming EU gypsum gap with phosphogypsum …

Hemihydrate phosphogypsum, an industrial solid waste product of phosphoric acid production, is abundant and inexpensive. If the problem of poor water resistance is solved, this …

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Phosphogypsum circular economy considerations: A critical …

Phosphogypsum (PG) is the primary byproduct generated during the production of phosphoric acid, an intermediate product in phosphate fertilizer production, from calcium …

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Response of Groundnut (Arachis hypogaea L.) to Different …

Improving productivity of groundnut to meet the domestic vegetable oil demand through balanced fertilization is the prime challenge lying before the agronomists in the …

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Study on the occurrence state of main …

1. Introduction Phosphorus is a non-renewable vital element and an economic mineral resource that is extensively utilized in various fields such as agriculture, chemical industry, pharmaceuticals, light industry, and national …

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Research hotspots and trends of comprehensive utilization …

Phosphogypsum is a by-product of the phosphate fertilizer industry. It is generally treated by stacking, which not only causes environmental pollution, but also wastes resources. …

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TENORM: Fertilizer and Fertilizer Production Wastes | US EPA

The yearly consumption of phosphate-based fertilizers in the U.S. averaged close to 5.8 million metric tons (MT) between 1960 and 2007, and had increased to over 8.5 million MT by 2007. While phosphate fertilizers are not considered to be waste, they do contain some of the … See more

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Properties, Purification, and Applications of Phosphogypsum: …

Phosphogypsum (PG) is a by-product produced during the wet process of phosphoric acid (H3PO4) production from natural phosphate rocks. Approximately 4–6 tons of …

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Potential management of waste phosphogypsum with …

It is proved that phosphogypsum exhibits astringent properties that provide annealing-free production of wall materials with the simultaneous extraction of a rare-earth …

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EVALUATION OF POTENTIAL COMMERCIAL PROCESSES …

Phosphogypsum is thermally decomposed in South Africa to produce sulfur dioxide and cement clinker. The abundance of inexpensive natural gypsum in the United States has …

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Beneficial Use of Mosaic Phosphogypsum

phosphogypsum (PG) from its New Wales phosphoric acid production facility blended with common aggregates and as a sand/cement mix as a road construction material. …

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Value-added utilization of phosphogypsum industrial by …

Phosphogypsum is an industrial by-product of phosphoric acid production by a wet process in phosphorus chemical enterprises and one of China's most important industrial …

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Phosphogypsum circular economy considerations: A critical …

Nearly 300 million t of phosphogypsum (PG) are produced every year as a byproduct from phosphate fertilizer production worldwide. Approximately 58% of the PG are …

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Phosphogypsum in the Circular Economy

Production and Phosphogypsum (PG) (fluorapatite) Ca 10 F 2 (PO 4) 6 + 10H 2 SO 4 + 10nH 2O → 10CaSO 4•nH 2 O (PG) + 6H 3 PO 4 + 2HF –Di-hydrate process, n=2 –Hemi-hydrate …

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Lawsuit Launched Over EPA's Oversight Failure on …

Conservation, public health, and environmental justice organizations notified the Environmental Protection Agency today of their intent to sue the agency for failing to respond …

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Investigating effects of phosphogypsum disposal practices …

Meanwhile, proper PG waste recycling can also become a measure for promoting a sustainable P supply by reducing phosphorus loss and waste production (Ogunmoroti et al., …

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Phosphogypsum Facts: Issues Surrounding Phosphate …

phosphogypsum have been stockpiled in central and north Florida, with the total projected to grow to some one billion tons by the year 2000. Phosphogypsum Production Over the years, Florida …

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Phosphogypsum in the Circular Economy

4. production of phosphoric acid by the wet process 5. manufacture and use of ammonium phosphate fertilizers 6. superphosphate fertilizers 7. nitrogen phosphate fertilizers 8. animal …

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Granulated asphalt mix based on industrial and domestic …

As a raw material for the production of asphalt used phosphogypsum - waste production of phosphoric acid, resulting from the processing of apatite. ... It takes the domestic …

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Potencial management of waste phosphogypsum with …

the production of construction materials. Keywords: phosphogypsum waste, phosphogypsum conversion, rare earth elements, environmental threats. INTRODUCTION Phosphogypsum is a …

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Granulated asphalt mix based on industrial and domestic …

Phosphogypsum is a mineral powder material, the dispersion characteristics of which correspond to the mineral powder in the production of asphalt concrete. The method of production of …

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Susceptibility of phosphogypsum to fungal growth and the …

The ability of species of Trichoderma to contribute to "sick-building syndrome" (Nielsen et al., 1998a) and to produce the mycotoxins trichodermol and trichodermin (Corley et …

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Brief schematic overview of the material flows at …

Since there is no domestic source of phosphate rock in the Philippines, the raw material for fertilizer production is imported from different suppliers worldwide (Haneklaus et al., 2015; Ramirez ...

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Chemical treatment of phosphogypsum and its …

phosphate rock remains in phosphogypsum [8]. Thus, treatment with sulphuric acid leads to the production of phosphogypsum which retains about 80% of 226Ra and 30% of 232Th and 14% …

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Reshoring Phosphate Production for the American …

Phosphorus is critical to modern energy storage and delivery of low-cost, quickly deployable, and reliable grid electricity. Despite its importance to food and energy security, the US gov-ernment …

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The Use of By-Product Phosphogypsum for Road Bases …

In 1979 Japan was producing phosphogypsum at a rate of 2.748 million metric tons per year (4). In Flor ida, more than 334 million tons of phosphogypsum had been stockpiled as of 1980. At …

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Phosphoric Acid and Phosphatic Fertilizers: A Profile

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Resource utilization and development of phosphogypsum …

Phosphogypsum (PG) is a bulk industrial solid waste of wet-process phosphoric acid production. Every ton of phosphoric acid production generates as many as 4–6 tons of …

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What is a gypsum stack?

Phosphogypsum, or PG for short, is calcium sulfate, a product created during the phosphate manufacturing process. ... that is permissible in many parts of the world, is a more sustainable approach to fertilizer production using more …

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Agricultural Uses of Phosphogypsum, Gypsum, and Ca …

Phosphogypsum Phosphogypsum is a byproduct of the phosphate fertilizer industry and emanates from the production of phosphoric acid from rock phosphate. Production of …

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Evaluation of Potential Commercial Processes for the Production …

The commercial incentives which justify the exploitation of by-product phosphogypsum in nations which lack domestic gypsum sources and seek to avoid expensive imports are absent in …

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Sustainable Approach for Recovery of Sulfur from Phophogypsum

The daily production of phosphogypsum in the town of. Annaba (Algeria) amounts to 2600 tons for 500 tons of. ... Construction sector contribution to Gross Domestic Product …

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IFA launches report on phosphogypsum and the …

Phosphogypsum represents an untapped resource with immense potential to drive sustainability in agriculture and other sectors. This report demonstrates how industry collaboration can lead to innovative solutions that …

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