English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/45241
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Environmental impact and management of phosphogypsum

AutorTayibi, Hanan; Mohamed, Choura; López Gómez, Félix Antonio ; Alguacil, Francisco José; López-Delgado, Aurora
Palabras clavePhosphogypsum
Waste management
Radioactivity
Building material
Fecha de publicación2009
EditorElsevier
CitaciónJournal of Environmental Management 90 (8) : 2377-2386 (2009)
ResumenThe production of phosphoric acid from natural phosphate rock by the wet process gives rise to an industrial by-product called phosphogypsum (PG). About 5 tons of PG are generated per ton of phosphoric acid production, and worldwide PG generation is estimated to be around 100–280 Mt per year. This by-product is mostly disposed of without any treatment, usually by dumping in large stockpiles. These are generally located in coastal areas close to phosphoric acid plants, where they occupy large land areas and cause serious environmental damage. PG is mainly composed of gypsum but also contains a high level of impurities such as phosphates, fluorides and sulphates, naturally occurring radionuclides, heavy metals, and other trace elements. All of this adds up to a negative environmental impact and many restrictions on PG applications. Up to 15% of world PG production is used to make building materials, as a soil amendment and as a set controller in the manufacture of Portland cement; uses that have been banned in most countries. The USEPA
Versión del editorhttp://dx.doi.org/10.1016/j.jenvman.2009.03.007
URIhttp://hdl.handle.net/10261/45241
DOI10.1016/j.jenvman.2009.03.007
ISSN0301-4797
Aparece en las colecciones: (CENIM) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Environmental impact and management of phosphogypsum.pdf221,58 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.