Overview of Studies on the Environmental Impact of Phosphogypsum Accumulation and Storage These specific conditions should be considered when choosing a method for removing and storing phosphogypsum in dumps: the production capacity; the amount of phosphogypsum that must be removed;
Determine the physical, chemical, and radioactive properties of phosphogypsum. Discuss the uses of phosphogypsum in agriculture as a fertilizer, amendment to degraded soils, …
Environmental impact and management of phosphogypsum. Hanan Tayibi, ... Aurora López-Delgado, in Journal of Environmental Management, 2009. 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 …
• ^Phosphogypsum is a radioactive waste product _ • ^EPA requires that phosphogypsum be managed in above-ground stacks, which are designed to keep emissions of radon and other radionuclides in line with acceptable risk practices. •The current EPA PG rule allows very little use only in agriculture, and restricted by radium …
Phosphogypsum (PG), a hard-to-dissipate by-product of the phosphorus fertilizer production industry, places strain on the biogeochemical cycles and ecosystem functions of storage sites. This pervasive problem is already widespread worldwide and requires careful stewardship. In this study, we review the presence of potentially toxic …
The problem of recycling and storage of phosphogypsum is topical for many countries around the world, as it is associated with environmental problems of pollution of water bodies, land, and atmosphere. Therefore, this paper analyzes the directions of phosphogypsum recycling and possible alternatives to its use. The main …
1. Introduction. Phosphogypsum (PG) is the major by-product of the wet phosphoric acid industry (Li et al., 2023), which is primarily composed of calcium sulfate dihydrate, along with some impurities including soluble phosphorus, fluorine, and heavy metals (Ou et al., 2023).Approximately 4–5 tons of PG are generated from the …
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.
In the development of hydrogen energy, Oman intends to go for 30 GW of green and blue hydrogen by 2040. In this regard, new projects have been announced by the government, including a 14 GW plant fueled by 25 GW of wind and solar energy. According to MEED research, Oman plans to invest around $45 billion in green hydrogen and …
Worldwide annual phosphate rock production / (Mt 300 í a) Year China United states Morocco and Western Sahara Russia Tunisia Jordan Other countries Fig. 1. Worldwide excavation of phosphate ores from 1994 to 2022. Cumulative phosphate ores are obtained from the United States Geological Survey (USGS) database [3–6]. 100 2010 2013 2016 …
Phosphogypsum (PG), a by-product of the phosphate fertilizer in- out the PG addition. This was attributed to a decrease dustry, reduces N losses whenadded to compostinglivestock manure, in compost pH.
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 PG is produced per ton of ...
This study contributes to sustainable construction practices by exploring the use of phosphogypsum, a commonly discarded byproduct, in the production of recycled aggregates. Addressing both environmental and economic aspects of sustainability, we investigate the feasibility of employing phosphogypsum as a primary raw material, in …
Nouman Massoudi. Citations (178) References (58) Abstract. Phosphogypsum (PG: CaSO4·2H2O) is a waste product generated by the phosphate …
The problem of recycling and storage of phosphogypsum is topical for many countries around the world, as it is associated with environmental problems of pollution …
PG management is an important issue that concerns many countries, as high amounts of waste are produced per year [21]. For instance, in Spain, 2.5 Mt of PG is deposited annually as waste [22]. The annual average PG generated in Turkey reaches 3 Mt [23] and in Korea 30 Mt [24] The Brazilian PG production is around 12.37 Mt [25].
By clicking on any country you can see how its annual emissions have changed, and compare it with other countries. Click to open interactive version. Share of global CO 2 emissions by country. In the interactive chart, you can explore each country's share of global emissions. Using the timeline at the bottom of the map, you can see how the ...
From the viewpoint of environmental security it is important to review the life cycle of phosphorite raw material transformation, from extraction to its use in the chemical industry with the forming of both useful products and secondary raw materials/waste, primarily upon the production of phosphate fertilizers with the forming of large-tonnage …
Phosphogypsum (PG) accumulates during wet-phosphoric acid production for fertilizers. In the Philippines, PG is partly (40%) utilized to produce gypsum walls and cement. This work assesses the radiological risks and resource opportunities associated with PG stacks in the Philippines. The conducted in situ radiometric survey measured …
Nearly 300 million t of phosphogypsum (PG) are produced every year as a byproduct from phosphate fertilizer production worldwide. Approximately 58% of the PG …
Phosphogypsum can help soils capture additional carbon, thereby contributing to the global goals of carbon emission reduction and carbon neutrality. This paper presents a comprehensive and diverse study on the applica-tion of phosphogypsum, which is expected to provide new ideas for the global solution of the three phosphorus problems
Abstract Red mud and phosphogypsum are staple solid wastes, with considerably large annual emissions. Improving their comprehensive utilization is the key to addressing the large accretion of both red mud and phosphogypsum. They have great utilization potential and can be collectively modified to expand the utilization field and …
Phosphogypsum (PG), a by-product of the phosphate fertilizer industry, reduces N losses when added to composting livestock manure, but its impact on greenhouse gas emissions is unclear.
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 ...
Radium-226 in phosphogypsum produced in a phosphate industry, SICNG operating at Thessaloniki, Northern Greece since May 1966, varied from 261 to 688 Bq kg −1 (mean value 508 Bq kg −1).This radionuclide in soil tilled with phosphogypsum used for agricultural purposes varied from 50 to 479 Bq kg −1 (average 205 Bq kg −1), while in …
The highest number of PG stacks occur in Florida, China and Northern Africa (specially Morrocco), but PG piles can be also found in many countries around the …
Addressing both environmental and economic aspects of sustainability, we investigate the feasibility of employing phosphogypsum as a primary raw material, in …
MUSCAT, MARCH 10 - Having toppled Thailand to clinch the crown as the world's largest natural gypsum exporter, the Sultanate has the potential to retain its dominant position as a global supplier of this …
Open access 25 March 2024. Phosphorus and food, fertilizer, fertility, and future perspectives. Phosphorus, a focal point of economic, agricultural, and …
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. Phosphogypsum has a significant impact on the environment by its effects, admixtures …
Abstract. 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, watercourses or in wilderness stocks, contains toxic elements harmful to ecosystems and human health, including heavy …
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 …
This report is addressing rapidly changing scientific, regulatory and policy perspectives concerning phosphogypsum (PG) management and use worldwide. It has been authored and reviewed by many of the world's top experts on PG from academia, international agencies and representatives of IFA's own member companies. The report …
Annual Reports; Phosphate Primer; Phosphate Research Areas open navigation. Mining and Beneficiation (Mineral Processing) Chemical Processing/Phosphogypsum; Remediation and Reclamation ... Phosphogypsum formed during the chemical processing of north Florida rock, however, has only 5 to 10 pCi/g and is sold to peanut farmers who …
