Phosphogypsum | search
Click here to view Phosphogypsum news from 60+ newspapers.
Bookmark or Share- Phosphogypsum - WikipediaPhosphogypsum (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).
- EPA Approves Use of Phosphogypsum in Road ConstructionBy finding a new way to use phosphogypsum, EPA is helping create a sustainable path to improve the environment while allowing for responsible reuse and recycling of a valuable byproduct. The U.S. produces approximately 20% of the world’s phosphogypsum.
- Radioactive Material From Fertilizer Production | US EPAPhosphogypsum, 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 largest mining industry in the United States in terms of the amount of material mined.
- Properties, Purification, and Applications of Phosphogypsum: A ...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 phosphoric acid production, where worldwide PG generation exceeds 300 million tons annually.
- Phosphogypsum | US EPAPhosphogypsum is a solid waste byproduct from processing phosphate ore to make phosphoric acid that is later used in fertilizer. The phosphate ore and the resulting phosphogypsum contain radium, which decays to form radon gas. Both radium and radon are radioactive and can cause cancer.
More
