— This study reports the application of phosphogypsum with cement and fly ash as a stabilization agent on two selected soils. In the light of the test results the following conclusions can be made: 1. Treatment with phosphogypsum, fly ash and cement generally reduces the plasticity index. Principally, a reduction in plasticity is an indicator of ...
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Phosphogypsum utilization has evolved along three broad use groupings: (1) Chemical raw material (2) Agricultural applications (3) Construction materials. Each of these uses will be considered in more detail, but it should be pointed out that for years Florida has not been in the forefront of the efforts to utilize phosphogypsum.
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The Journal of Materials of Civil Engineering 1996;8(1). This study reports the application of phosphogypsum with cement and fly ash as a stabilization agent on two selected soils. In the light of the test results the following conclusions can be made: 1. Treatment with phosphogypsum, fly ash and cement generally reduces the plasticity index.
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— Application of Phosphogypsum in Road Construction Ya. N. Kovalev 1), V. N. Yaglov 1), T. A. Chistova 1), V. V. Girinsky 1) 1) Belarusian National Technical University (Minsk, Republic of Belarus)
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— The application of cast-in-situ phosphogypsum wall could consume a large amount of pollutant, and improve the efficiency of building construction. Methods: The preparation and thermal insulation ...
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— This paper describes the application of phosphogypsum with cement and fly ash for soil stabilization. Atterberg limits, standard Proctor compaction and unconfined compressive strength tests were ...
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— To restore degraded sod-podzolic soils, a peat-sand substrate enriched with compost from quail manure without and with the application of phosphogypsum to stabilize organic compounds of compost ...
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— Phosphogypsum (PG) waste is a by-product generated from wet-process phosphoric acid (H3PO4) manufacturing during phosphate rock decomposition. Worldwide, the annual production of PG ranges between 100 and 300 million tons, with only a few quantities utilized in several application domains (about 15%), the unused PG is usually …
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— Phosphogypsum (PG) is a solid waste produced from decomposition of phosphate rock in sulfuric acid. It can improve the physicochemical properties of soil. However, the application of PG will ...
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— Rashad A.M. Potential use of phosphogypsum in alkali-activated fly ash under the effects of elevated temperatures and thermal shock cycles. J. Clean. Prod. 2015; 87:717–725. [Google Scholar] Reijnders L. Cleaner phosphogypsum, coal combustion ashes and waste incineration ashes for application in building materials: a review. Build. …
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DOI: 10.1016/B978-0-12-820549-5.00016-4 Corpus ID: 236691033; Application of phosphogypsum for the improvement of eco-efficient cements @inproceedings{Rosales2021ApplicationOP, title={Application of phosphogypsum for the improvement of eco-efficient cements}, author={Julia Rosales and Manuel Jes{'u}s …
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— DOI: 10.1016/j.polymertesting.2022.107742 Corpus ID: 252140158; Properties of polymer composite with large dosage of phosphogypsum and it's application in pipeline @article{Zhang2022PropertiesOP, title={Properties of polymer composite with large dosage of phosphogypsum and it's application in pipeline}, author={J. Zhang and Chao …
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— Fig. 2 shows the number and growth trend of published literatures in the field of phosphogypsum resource utilization from 1985 to 2020. As shown in Fig. 2 a, after 1985, the number of literatures published in the field of phosphogypsum resource utilization increased year by year.Before 2008, the number of published literatures on …
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— Introduction. Phosphogypsum (PG) is a solid grey, moist, fine-grained by-product powder generated during the production of phosphoric acid which has the chemical formula H 3 PO 4 through the digestion of phosphate rock with sulphuric acid via a wet …
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(phosphate mines, phosphorus chemical enterprises, phosphogypsum stockpiles in the waste stockpiles, and environmental pollution problems). This review summarizes the state-of-the-art research on phosphogypsum application in agriculture and soilization, as well as ideas and suggestions for its eective utilization in resource soil improvement.
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— Phosphogypsum (PG: CaSO4·2H2O) is a waste product generated by the phosphate industry. World production of this waste exceeds 200 million tonnes per year.
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acid, 4–5 tons of phosphogypsum are produced (El Issiouy et al. 2013; Papastefanou et al. 2006). Currently, between 3 and 4 billion tons of phosphogypsum have been produced, with an annual rise of 300 million tons (Cuadri et al. 2021). The question of considering phosphogypsum as a waste or a resource has been
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— 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, …
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The phosphogypsum (PG) pile of solid waste is of immense proportions and poses a grave threat to the ecological environment, with its reserves steadily increasing year after year. The urgent need for large-scale consumption and high-quality utilization of PG in industrial production has become apparent. The present study provides a comprehensive analysis …
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— Phosphogypsum (PG) is a by-product of the phosphate fertilizer industry that is produced during the phosphoric acid production process. Annual global PG production ranges between 100 to 300 Mt, wit...
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— The management of solid mine waste requires a detailed characterization and a full understanding of the reparation of elements in the origin rock and their distribution in the waste matrix (Elghali et al., 2018).It is now generally acknowledged that the distribution, mobility, availability, and toxicity of chemical elements are determined not …
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The treated and raw phosphogypsum was blended with fly ash and lime cast in 100mm x100mm moulds and cured at 80 o C for 4 days and the unconfined strength was determined. T.P. Mashifana / Procedia ...
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— Abstract: The application of cast-in-situ phosphogypsum as the wall material of building structures can greatly reduce the environmental pollution caused by …
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— Phosphogypsum (PG) is a radioactive industrial by-product produced in large quantities when processing phosphate ores into fertilizers. With rapid growth of high concentration phosphate and compound fertilizers production in China, PG production is increasing every year. Phosphogypsum is usually stored in such a way that it not only …
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determine how to utilize PG in various applications. Phosphogypsum Properties and Characterisation Physicochemical Properties of PG PG is a silt or silty-sand substance with a maximum particle size range of 0.5 to 1.0 mm and is 50–75% finer than 0.075 mm. Phosphate gypsum has a specific
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The Application of Phosphogypsum in Agriculture Phosphogypsum (PG) is a by-product of phosphoric acid production and according to the Waste Management Strategy of the Republic of Croatia for 2007 – 2015 (Official Gazette 85/07, 126/10, 31/11, 46/15) it is classified under the waste code 06 09 01.
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— The use of industrial byproducts as construction material can help to achieve sustainability in this industry. Phosphogypsum (PG) is a waste obtained in the phosphoric acid (PA) manufacturing process, produced in large quantities, especially from the soil fertilizer industry. Alternatively, in the disposal of these materials in landfill, several …
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on the utilization of phosphogypsum. Mousa and col-leagues5 studied the preparation of nano-material from phosphogypsum. Değirmenci and colleagues6 studied the application of phosphorus gypsum in soil stabilization, and found that phosphogypsum and fly ash provide an Preparation and thermal insulation performance of cast-in-situ phosphogypsum wall
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— Phosphogypsum (PG: CaSO 4 ·2H 2 O) is a waste product generated by the phosphate industry. World production of this waste exceeds 200 million tonnes per year. PG, discharged into the sea, …
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— With good performance, phosphogypsum could be used in cast-in-situ walls. This paper provides the theoretical basis for the preparation and energy-saving application of phosphogypsum in the …
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— Properties of phosphogypsum for application in cements. The use of PG in cement production depends on the nature of the phosphate ore, the type of process employed, the efficiency of plant operation, the method of disposal, and the location and depth of the landfill or pile where it is discharged (Arman and Seals, 1990).
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— Based on the comprehensive effects of phosphogypsum on properties of cement, the phosphogypsum was used to develop an anti-cracking agent with citric acid as an auxiliary set retarder. This anti-cracking agent was added into the cement-stabilized base materials to apply the Continuous Construction Method (CCM).
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— 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 PG, including more than 90% of CaSO 4 ·2H 2 O, a small amount of phosphorus, fluorine, organic matter, oxides, heavy metals, radioactive substances and …
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— In participation with the local farming community, we carried out a 4-year field experiment in Southern Kazakhstan to evaluate the effects of soil application of phosphogypsum—0, 4·5, and 8·0 metric ton per hectare (t ha −1)—on chemical changes in a soil containing excess levels of Mg 2+, and on cotton yield and economics.
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phosphogypsum is generated for every Ton of phosphoric acid productionit can be concluded that p hosphogypsum generation in the Country is about 11 Million Tons per annum. Phosphogypsum is a dampgray colored, fine grained, powder, silt or silty sand material. The maximum particle size of phosphogypsum ranges between 0.5 mm and …
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