is phosphogypsum harmful to people in Oman
Phosphogypsum is A Hazardous Waste & Toxic Substance
Phosphogypsum is a radioactive, toxic waste created by the fertilizer industry. Phosphogypsum is stored in stacks, rather than placed in a landfill or recycled, because the U.S. Environmental Protection Agency (EPA) has determined the radon gas it emits presents an unacceptable risk to public health.
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Sustainable Utilization of Phosphogypsum in Multi-Solid …
Addressing both environmental and economic aspects of sustainability, we investigate the feasibility of employing phosphogypsum as a primary raw material, in …
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Phosphogypsum
Phosphogypsum (PG) is a type of synthetic gypsum generated during the production of phosphoric acid. From: Journal of Building Engineering, 2021. ... PG may contain harmful impurities such as phosphorus, mercury, cadmium, and radioactive elements that can be harmful if they enter the atmosphere accompanied by steam (Pérez-López et al., 2016).
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Phosphogypsum and its Potential Use in Croatia: Challenges …
Physico-chemical characteristics of phosphogypsum. Phosphogypsum is a grey, damp, fine-grained material (silty or silty-sandy) with a maximum grain size between 0.5 and 1.0 mm and 50–75 % of particles finer than 0.075 mm . The moisture content usually ranges between 8 % and 30 % (3, 6). Its density, strength, compressibility, and …
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Phosphogypsum: potential uses and problems – a review …
PG, discharged into the sea, watercourses or in wilderness stocks, contains toxic elements harmful to ecosystems and human health, including heavy metals and radionuclides, …
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Application of phosphogypsum in soilization: a review
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 …
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Harmless treatment technology of phosphogypsum: …
DOI: 10.1016/j.jenvman.2022.114827 Corpus ID: 247253208; Harmless treatment technology of phosphogypsum: Directional stabilization of toxic and harmful substances. @article{Wu2022HarmlessTT, title={Harmless treatment technology of phosphogypsum: Directional stabilization of toxic and harmful substances.}, …
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Phosphogypsum circular economy considerations: A critical …
This article reviews the physical-chemical properties and environmental impacts of phosphogypsum (PG), a byproduct from phosphate fertilizer production. It …
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Agriculture | Free Full-Text | Agroecological Transformation …
The purpose of our research is to evaluate the agroecological condition of soils under long-term irrigation (over 50 years) and to improve existing measures to slow down degradation processes by introducing phosphogypsum. The possibility of simultaneously addressing the ecological issue of using large amounts of …
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Valorization of phosphogypsum in cement-based materials…
Phosphogypsum (PG) is a type of synthetic gypsum generated during the production of phosphoric acid. Each ton of phosphoric acid generates 5 tons of phosphogypsum. This industrial process has caused significant environmental problems worldwide. ... Minor elements (heavy metals) and radionuclides are potential toxic …
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A Novel Process to Recover Gypsum from Phosphogypsum
The test samples used in this study were taken from phosphogypsum produced by a phosphorus chemical enterprise in the Deyang Region, Sichuan Province, China. The content of CaSO 4 ·2H 2 O in the phosphogypsum was 80.65%, and the whiteness was 27.68. The water content of the phosphogypsum was less than 5%, …
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Production Waste Management: Qualitative and Quantitative
Phosphogypsum (PG: CaSO4·2H2O) is a waste product (or by-product) from the production of phosphoric acid, the main component in the production of concentrated simple and complex fertilizers. The world production of phosphogypsum exceeds 200 million tons per year. PG discharged into water bodies (seas, rivers) or …
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A Sustainable Composite Cementitious Material …
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 …
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Phosphogypsum: potential uses and problems – a review
Properties of phosphogypsum were evaluated and then the effect of various level phosphogypsum addition (2, 5, 10 and 15 percent by weight of cement) with Portland cement clinker was investigated.
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Production Waste Management: Qualitative and Quantitative …
Phosphogypsum (PG: CaSO 4 ·2H 2 O) is a waste product (or by-product) from the production of phosphoric acid, the main component in the production of …
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Phosphogypsum
Phosphogypsum contains substantial quantities of P, which can be beneficial if large amounts of gypsum are applied. The levels of the other elements in the materials are so low that they are of little importance. Phosphogypsum from Florida contains 226 Ra and gives off radon (222 Rn) gas, which poses a potential health hazard (Mays and Mortvedt ...
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Harmless disposal of phosphogypsum synergized red mud: Harmful …
The soil and groundwater can be contaminated by the strong acidity of PG, which is a serious threat to people's lives [7], [8]. Therefore, it is need to explore new approaches to handle PG on a large scale. ... The addition of biochar as a fertilizer supplement for the attenuation of potentially toxic elements in phosphogypsum-amended soil. J ...
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Potential uses of phosphogypsum: A review
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, with only 15% of that utilized while the rest is usually placed on large dumps with potential serious human and environmental impacts.
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EPA approves use of radioactive phosphogypsum in roads, …
Reversing a strict, decades-old policy, the Environmental Protection Agency on Wednesday announced it will allow limited use of a radioactive byproduct of phosphate mining to build roads.
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Potential uses of phosphogypsum: A review
Phosphogypsum (PG) is a by-product of the phosphate fertilizer industry that is produced during the phosphoric acid production process.
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The Development of a New Phosphogypsum-Based …
Phosphogypsum (PG) is a waste (or by-product) of the production of phosphoric acid, a basic constituent in the manufacturing of modern fertilizers. The annual production of phosphogypsum in Tunisia is currently estimated to be 10 million tons. ... it can be concluded that phosphogypsum does not exhibit any nuclear activity that is …
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Phosphogypsum: potential uses and problems – a …
PG, discharged into the sea, watercourses or in wilderness stocks, contains toxic elements harmful to ecosystems and human …
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A review on the environmental impact of phosphogypsum and …
Numerous anthropogenic and natural nanoparticles were documented in phosphogypsum. • The environmental and human health effects of nanoparticles are studied. • Dangerous ultra-fine compounds such as anatase and rutile (TiO 2), cadmium, lead, and nickel, were detected. • This review is complemented with field measurements …
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Phosphogypsum impacts on soil chemical properties and
Phosphogypsum (PG) is a by-product of phosphorus fertilizer that is typically stacked near production sites. Phosphogypsum contains trace elements and naturally occurring radioactive materials which may be hazardous to the surrounding environment. Phosphogypsum stack reclamation typically involves placing a soil cap …
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Harmless treatment technology of phosphogypsum: …
This study mainly focuses on the harmless treatment of phosphogypsum, using high targeted solidification and stabilization technology to solidify and stabilize the toxic and harmful elements, with calcium carbide slag (Liu et al., 2020) or lime as the alkali-base neutralizer of phosphogypsum (Pan et al., 2020), and polymeric ferric …
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A Novel Process to Recover Gypsum from Phosphogypsum
In this study, we investigated a coarse phosphogypsum containing 49.63% SO3, 41.41% CaO, 10.68%, 4.47% SiO2, 1.28% P2O5, 0.11% F, CaSO4·2H2O purity of 80.65%, and whiteness of 27.68. Phosphogypsum contains calcium sulfate dehydrate as the main mineral, with small amounts of brushite, quartz, muscovite, and zoisite. …
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Imminent Failure of Phosphogypsum Stack in Tampa Bay …
Manatee County officials have issued evacuation orders for the area surrounding Florida's Piney Point in anticipation of the imminent catastrophic collapse of a phosphogypsum stack retention pond holding up to 700 million gallons of wastewater. It has been reported that 22,000 million gallons a minute are being discharged from the …
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Phosphogypsum as a construction material
Phosphogypsum (PG) is a by-product generated from the phosphorus fertilizer industry (phosphoric acid production). PG is similar to natural gypsum, but there are some differences, of which it contains some impurities such as water-soluble phosphate (P 2 O 5), water-soluble fluoride (F −) and P 2 O 5 substituted in the gypsum crystal …
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Phosphogypsum and the EPA Ban
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 use it as a soil amendment to provide the calcium needed to form strong peanut shells. ... Phosphate Companies and EPA's Toxic Release Inventory; 6 – Environment and Health. Phosphogypsum Stacks; …
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Nanomaterials | Free Full-Text | The Generation …
As phosphogypsum constitutes a large amount of solid waste material, its purification treatment and comprehensive utilization have close connection with economic development and ecological …
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