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"Phosphogypsum waste sits stacked in Florida and around the U.S. without any solution for its ultimate fate," said Brooks Armstrong, president of People for Protecting Peace River. "Piled 300 feet or more, these huge stacks have had multiple failures, releasing their highly toxic and radioactive liquids into our Floridan aquifer.
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Phosphogypsum (PG) is the primary byproduct generated during the production of phosphoric acid, an intermediate product in phosphate fertilizer production, from calcium phosphate (apatite) ore. ... As a result, these wastes may be harmful to the environment and, in the long term, induce health problems to local populations. ...
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In 1989, stacking of phosphogypsum became a legal necessity when the U.S. Environmental Protection Agency (EPA) banned the use of phosphogypsum. In 1992, this rule was modified to allow the use of phosphogypsum with an average radium-226 concentration of less than 10 picocuries/gram (pCi/g) for agricultural application as a soil …
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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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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 …
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We are left with little choice but to file this lawsuit to enforce the EPA's duty to protect people and wildlife from the next foreseeable disaster." In February 2021, 17 organizations petitioned the EPA to better regulate phosphogypsum and process wastewater under the Resource Conservation and Recovery Act. The two radioactive, …
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Is phosphogypsum harmful to people? The EPA says that phosphogypsum poses a cancer risk due to radon emissions. Sinkholes have also caused sites where phosphogypsum, called …
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Is phosphogypsum harmful to people? The EPA says that phosphogypsum poses a cancer risk due to radon emissions. Sinkholes have also caused sites where phosphogypsum, called stacks, ...
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Potential Phosphogypsum Uses. ... Phosphate Companies and EPA's Toxic Release Inventory; 6 – Environment and Health. Phosphogypsum Stacks; Back to top. 1855 West Main Street. Bartow, Florida USA 33830. 863-583-9094. twitter; instagram; linkedin; youtube; giphy; mobile_app;
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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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Phosphogypsum, a waste product from manufacturing fertilizer, emits radon, a radioactive gas. It also contains the radioactive …
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"Using radioactive phosphogypsum in roads is not a solution to the fertilizer industry's toxic waste problem," the Center for Biological Diversity and more than 30 other groups said in a letter to ...
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Phosphogypsum (PG), the main industrial by-product of phosphate fertilizer industry, primarily consists of calcium sulfate dihydrate. ... Rn-222 is an inert noble gas that is harmful to the environment because it is highly mobile and eventually decays to form two radioactive daughters with relatively long half-lives: ...
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Phosphogypsum (PG) is reused as aggregate in the cemented backfill, which effectively improves the PG reutilization efficiency. ... Directional stabilization of toxic and harmful substances. J ...
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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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According to a 2019 report from the Fertilizer Institute, an estimated 734 million tons of phosphogypsum have accumulated in the United States — a number the industry group projected to steadily …
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Dangerous ultra-fine compounds such as ... Phosphogypsum (PG) is a solid by-product generated in the production of phosphoric acid (PA) using conventional …
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Phosphogypsum (PG) is a waste by-product (residue) originating from the production of phosphoric acid and phosphate fertilisers. ... Hence, before using PG, detailed knowledge of potential hazards is necessary to protect people and the environment. The aim of this review is to summarise available data on Croatian PG, compare them with …
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Phosphogypsum (PG) is a hazardous industrial solid waste product from the wet phosphate industry 1,2.The widespread deposition of that fine, light- to dark-grey, powder with a slight odor and ...
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Phosphogypsum and the EPA Ban. Phosphogypsum is a by-product of the chemical reaction called the "wet process," whereby sulfuric acid is reacted with phosphate rock to …
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Phosphogypsum is one of the typical by-products of phosphorus chemical industry. As a strategic industry related to the national livelihood of China, phosphorus chemical industry has accumulated and produced a significant amount of phosphogypsum. In general, phosphogypsum contains approximately 80%–95% calcium sulfate dihydrate, and less …
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Phosphogypsum (PG) is an acid by-product from the production phosphate fertilizers that is produced in large amounts all over the world. However, it is challenging to reuse this waste due to the quantities of various impurities in PG and technical restrictions, resulting in PG accumulation, which threatens adjacent environments.
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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 …
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Is phosphogypsum dangerous? "Phosphogypsum contains appreciable quantities of uranium and its decay products, such as radium-226," according to the EPA, which also notes that because the fertilizer production process concentrates waste material, "phosphogypsum is more radioactive than the original phosphate rock."
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The Biden administration has withdrawn a previous approval of the use of phosphogypsum - the toxic byproduct of phosphate mining - in road beds. This means …
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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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the Toxic Substances Control Act because they pose a substantial hazard and unreasonable risk of injury to human health and the environment. WHAT IS PHOSPHOGYPSUM? Phosphogypsum is the radioactive waste from processing phosphate ore into phosphoric acid which is predominantly used in fertilizer. In addition …
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There, a pool that initially held more than 400 million gallons of wastewater, with traces of heavy metals and other toxic substances, sits atop a pile of phosphogypsum tailings at least 70 feet tall.
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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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Phosphogypsum is a waste from the phosphorus chemical industry which has certain environmental hazards. Using it as a substitute for building materials was thought to alleviate the problems of phosphogypsum pollution and natural mineral consumption. This study tried to develop an environmentally friendly phosphogypsum …
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