The main harmful components of phosphogypsum

Phosphogypsum – An Industrial Byproduct with …

Phosphogypsum is a by-product of the phosphates industry. Produced in significant quantities, the material is considered a waste in the US due to radioactivity, where the primary means of management is storage in "stacks.". …

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The Harm of Phosphogypsum Component Analysis of the …

Rock phosphate as the main raw material to produce phosphoric acid,a large number of by- product phosphogypsum were produced,whose main harmful components were phosphorus compounds,soluble fluoride and organic matter. From the perspective of the nature of chemical analysis of the components of the dangers on environment pollution,it should be in line with …

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(PDF) Phosphogypsum: potential uses and …

2017-6-19 · Phosphogypsum (PG: CaSO4·2H2O) is a waste product generated by the phosphate industry. World production of this waste exceeds 200 million …

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The Harm of Phosphogypsum Component Analysis of the ...

Abstract: Rock phosphate as the main raw material to produce phosphoric acid,a large number of by- product phosphogypsum were produced,whose main harmful components were phosphorus compounds,soluble fluoride and organic matter. From the perspective ...

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Environmental impact and management of phosphogypsum

2009-6-1 · The chemical composition of PG from different sources is listed in Table 1 (Taha and Seals, 1992).According to this data the main components of the PG are CaO, sulphates (expressed as SO 3), SiO 2, Al 2 O 3, Fe 2 O 3, P 2 O 5, and F. Table 2 shows the trace metal contents (arsenic, silver, barium, cadmium, chromium, lead, mercury and selenium) in (mg/kg) …

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Phosphogypsum

Phosphogypsum is a waste by-product from the processing of phosphate rock in plants producing phosphoric acid and phosphate fertilizers, such as superphosphate. The wet chemical phosphoric acid treatment process, or ''wet process'', in which phosphate ore is digested with sulfuric acid, is widely used to produce phosphoric acid and calcium sulfate, mainly in dihydrate form (CaSO 4 …

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Environmental Impact and Management of …

2017-10-3 · Phosphogypsum (PG) is a waste by-product from the processing of phosphate rock by the "wet acid method" of fertiliser production, which currently accounts for over 90% of phosphoric acid production. World PG production is variously estimated to be around 100-280 Mt per year (Yang et al., 2009; Parreira et al., 2003) and the main

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Phosphogypsum

Environmental impacts of phosphogypsum - ScienceDirect

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Environmental impacts of phosphogypsum

1994-6-13 · The main environmental concerns associated with phosphogypsum are: (i) movement of fluoride, sulfate, total dissolved solids, certain trace elements, and radionuclides from the U-238 decay series below phosphogypsum stacks into groundwater supplies; (ii) radon-222 exhalation which may pose a health risk to workers on the site or people living ...

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Methods of the Harmless Treatment of Harmful …

Phosphogypsum is a by-product of the wet process production of phosphoric acid,containing fluorine,phosphorus,organic compound,eutectic phosphorus and other impurities,which deteriorate the efficiency of Phosphogypsum and has serious effect on the utilization of phosphogypsum [1]. Different methods and processes of treating the harmful impurities in …

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Phosphogypsum, the composition and application of

2019-9-26 · Phosphogypsum, the composition of the formula: Phosphogypsum – a fertilizerused for plastering of soils. Phosphogypsum contains at least 80% of gypsum (CaSO4·2H2O) in the form of small crystals and 0.4% water-soluble phosphorus …

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