plant diagram for phosphogypsum recycling

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2022年11月11日  Abstract. Phosphogypsum (PG) is a major hazardous by-product of the phosphate industry. The whole world is facing the challenge of increasing stockpiles of

DOI: 10.1016/j.heliyon.2022.e11518

Exploring the potential reuse of phosphogypsum: A waste or a

2024年1月15日  Repartition map of the annual volume of phosphogypsum generated around the world. The management of solid mine waste requires a detailed

进一步探索

(PDF) Phosphogypsum Processing Method - ResearchGateA review on the environmental impact of phosphogypsum

Applied Sciences Free Full-Text Phosphogypsum Recycling: A

An integrated biochemical approach to production and

Download scientific diagram An integrated biochemical approach to production and utilization of phosphogypsum. from publication: Phosphogypsum Recycling: A Review of Environmental Issues ...

Recycling-equilibrium strategy for phosphogypsum pollution

2019年4月1日  This paper proposes a recycling-equilibrium strategy from a regional policy perspective that integrates circular economic theory and modeling techniques to resolve

Jiuping Xu, Lurong Fan, Yachen Xie, Gang Wu

Phosphogypsum Recycling: A Review of Environmental Issues,

a red cluster—phosphogypsum recycling in the construction industry; green cluster—radiation pollution problem of phosphogypsum and phosphate fertilizers;

标记:Recycling PhosphogypsumFertilizers

Environmentally Friendly Concept of Phosphogypsum Recycling

2019年10月26日  Figure 1 generalizes input and output flows for the process of extraction and treatment of phosphorite raw materials on the basis of LCA. Fig. 1. Block diagram of

标记:Recycling PhosphogypsumYelizaveta Chernysh, Leonid PlyatsukPublish Year:2020

Effective and innovative procedures to use phosphogypsum

2023年2月18日  Simplified schema of phosphoric acid manufacturing process. Full size image. As shown in Table 1, the worldwide production of this waste is measured between

Phosphogypsum: Properties and Potential Use in Agriculture

2023年2月28日  Abstract. Phosphogypsum (PG) is a calcium sulphate dihydrate and a by-product of the phosphate fertilizer industry. It is produced in huge quantities (300

(PDF) Recycling phosphogypsum in road construction

2022年11月1日  Recycling this material may be an environmentally friendly and safe solution to this challenge. In this paper, we searched the Web of Science database for 2369 articles from 1975 to 2022 using ...

Application of phosphogypsum in soilization: a review

2023年2月1日  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,

Schematic diagram of the wet-process phosphoric

Download scientific diagram Schematic diagram of the wet-process phosphoric acid production with full recycling of sulphur from the waste phosphogypsum obtained from publication: Exergy analysis ...

Radioactive Material From Fertilizer Production US EPA

2024年1月23日  Phosphogypsum, a waste product from manufacturing fertilizer, emits radon, a radioactive gas. It also contains the radioactive elements uranium, thorium and radium. Phosphate rock mining is the fifth

Recycling of waste gypsum from αlpha-hemihydrate phosphogypsum

2023年5月9日  1. Introduction. Phosphogypsum (PG) is the main solid waste in the phosphorus chemical industry. In the wet process production of phosphoric acid, which is a mainstream process of the phosphorus chemical industry, 4.5–5.5 tons of PG is emitted for each ton of P 2 O 5 production [1], [2], [3].The PG is mainly composed of dihydrate

The Investigation of Phosphogypsum Specimens Processed by

2020年4月13日  Abstract Phosphogypsum (further PG) is a by-product obtained from the production process of the phosphate fertilisers. It is produced in enormous quantities, but only 15% of it is recycled. The remaining part is stored in large stockpiles or in water bodies. The harmful water–soluble impurities present in PG composition cause serious ecological

Environmentally Friendly Concept of Phosphogypsum Recycling

2019年10月26日  Materials that are treated at extraction are usually on average 1/3 of phosphate, 1/3 of sand and 1/4 of clay (Energy and Environmental Profile of the U.S. 2002). The consumption of abiotic resources upon the production of phosphate fertilizers mainly includes the consumption of such exhaustible resources as fuels and phosphate raw

Phosphogypsum - Wikipedia

Phosphogypsum stack located near Kėdainiai, Lithuania. Phosphogypsum (PG) is the calcium sulfate hydrate formed as a by-product of the production of fertilizer, particularly phosphoric acid, from phosphate rock.It is mainly composed of gypsum (CaSO 4 2H 2 O). Although gypsum is a widely used material in the construction industry, phosphogypsum

A Sustainable Composite Cementitious Material Manufactured by

2022年12月12日  The phosphogypsum is a by-product of the phosphate fertilizer industry. It has accumulated over several decades, and not only takes up a large amount of land, but also poses a significant risk to the environment and resource waste. In order to promote the use of phosphogypsum, its hydration hardening characteristics are studied using a

Closing the upcoming EU gypsum gap with phosphogypsum

2022年7月1日  The gypsum industry is of considerable importance to Europe and provides a large number of jobs. The demand for construction gypsum in the EU will maintain an annual growth of 0.5-2% until 2030 [4 ...

XRD Patterns of (NH4)2SO4 prepared from the PG (a

Download scientific diagram XRD Patterns of (NH4)2SO4 prepared from the PG (a) compared with that prepared from SG (b) for 0.6 M NH4OH aqueous solution from publication: Phosphogypsum Two-Step ...

A Critical Review of the Enhanced Recovery of Rare Earth ... - MDPI

2023年8月28日  The increasing demand for rare earth elements (REEs), especially from new and innovative technology, has strained their supply, which makes the exploration of new REE sources necessary, for example, the recovery of REEs from phsophogypsum (PG). PG is a byproduct during the wet production of phosphoric acid, which is an

Production of phosphate fertilizers in Yunnan, Guizhou, Sichuan

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 ...

Environmental Impact of Phosphogypsum-Derived Building Materials

2020年6月14日  The aim of the present work was to characterize the products obtained from the treatment of phosphogypsum residue by means of two recovery routes, and also to evaluate the concentrations of heavy metals and radionuclides in the materials obtained and their leachates. In this way, it is possible to determine how the most hazardous

Minerals Free Full-Text Rare Earths’ Recovery from Phosphogypsum ...

2021年8月26日  Figure 3 shows a proposed flow diagram of this process with a subsequent extraction of ... from phosphogypsum waste case study of the WIZOW chemical plant (Poland). J. Clean. ... L.J.P.; Nisti, M.B.; Mazzilli, B.P. Phosphogypsum recycling in the building materials industry: Assessment of the radon exhalation rate. J. Environ.

A Critical Review of the Enhanced Recovery of Rare Earth ... - MDPI

2023年8月28日  The increasing demand for rare earth elements (REEs), especially from new and innovative technology, has strained their supply, which makes the exploration of new REE sources necessary, for example, the recovery of REEs from phsophogypsum (PG). PG is a byproduct during the wet production of phosphoric acid, which is an

Production of phosphate fertilizers in Yunnan, Guizhou,

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 ...

Environmental Impact of Phosphogypsum-Derived

2020年6月14日  The aim of the present work was to characterize the products obtained from the treatment of phosphogypsum residue by means of two recovery routes, and also to evaluate the concentrations of

Minerals Free Full-Text Rare Earths’ Recovery from Phosphogypsum ...

2021年8月26日  The need for rare earths elements (REEs) in high tech electrical and electronic based materials are vital. In the global economy, deposits of natural REEs are limited except for countries such as China, which has prompted current attempts to seek alternative resources of REEs. This increased the dependence on major secondary rare

Recycling phosphogypsum in road construction materials and

2022年11月1日  Phosphogypsum is usually a yellowish-white, light greyish-white or dark grey fine powdery solid. The main component of PG is CaSO 4 2H 2 O, which accounts for more than 90% of its total composition. In addition, PG contains phosphorus, fluorine, organic matters and other impurities (e.g. heavy metal elements and nuclides) (Rashad,

Global phosphorus supply chain dynamics: Assessing regional impact

2020年9月1日  Abstract. Phosphorus (P) availability is essential for global food security. A system dynamics model running from 1961 to 2050 was built for this study, linking global P supply to social, economic and environmental dynamics at regional level. Simulation results show that phosphate rock (PR) production needs to double by 2050 compared to present ...

Portlandite wet-synthesis process from phosphogypsum waste

2023年1月11日  Portlandite (Ca(OH)2) preparation from phosphogypsum waste (PGW) was evaluated in numerous works; however, the use of this compound is not applied yet in the brine water salinity reduction. In this work, the purity of Ca(OH)2 prepared from PGW and soda aqueous solution was tested for different NaOH/PG molar ratios (MR) close to

Carbon mineralization pathways for carbon capture, storage

2021年2月26日  CO 2 generated from power plants or industrial ... Continuous and simultaneous conversion of phosphogypsum waste to sodium sulfate and potassium sulfate using quaternary phase diagram ...

Preparation and Performance of H-PDMS/PMHS/OTS Hybrid

2023年8月28日  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 material could be substituted for cement and other traditional energy-consuming cementitious materials in the construction industry. This approach

An integrated biochemical approach to production and

Download scientific diagram An integrated biochemical approach to production and utilization of phosphogypsum. from publication: Phosphogypsum Recycling: A Review of Environmental Issues ...

(PDF) Phosphogypsum Recycling: A Review of Environmental

The phosphogypsum (factory .Over 6 million tons of PG is produced per annum in India and poses various environmental and storage problems. Out of these some quantities are utilized for of production of ammonium sulphate and few for other uses, there is accumulated stock of PG) is the industrial waste by-product produced in various industries like fertilizer

Exploring the potential reuse of phosphogypsum: A waste or a

2024年1月15日  Policies and environmental laws are limiting PG reuse. Phosphogypsum (PG), the main industrial by-product of phosphate fertilizer industry, primarily consists of calcium sulfate dihydrate. However, it contains various impurities with variable quantities depending on the origin of the phosphate rock. These impurities can restrict the reuse of ...

When will Piney Point close? We toured the troubled plant.

2 之  Herb Donica, the court-appointed receiver in charge of day-to-day operations at the Piney Point phosphogypsum stack system, observes an area containing geotextile fabric tubes being used to store ...

Materials Free Full-Text In Situ Remediation of Phosphogypsum with ...

2021年11月18日  The accumulation of original phosphogypsum (OPG) has occupied considerable land resources, which have induced significant environmental problems worldwide. The OPG-based cemented paste backfill (OCPB) has been introduced as a promising solution. In this study, a water-washing pre-treatment was used to purify OPG,

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