Chemical stabilization of metals in mine wastes by transformed red mud and other iron compounds: Laboratory tests (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Chemical stabilization of metals in mine wastes by transformed red mud and other iron compounds: Laboratory tests (Articolo in rivista) (literal)

Anno

• 2014-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1080/09593330.2014.930515 (literal)

Alternative label

• Ardau C.; Lattanzi P.; Peretti R.; Zucca A. (2014)
  Chemical stabilization of metals in mine wastes by transformed red mud and other iron compounds: Laboratory tests
  in Environmental technology
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Ardau C.; Lattanzi P.; Peretti R.; Zucca A. (literal)

Pagina inizio

• 3060 (literal)

Pagina fine

• 3073 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://www.scopus.com/inward/record.url?eid=2-s2.0-84907580508&partnerID=q2rCbXpz (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 35 (literal)

Rivista

• Environmental technology (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 24 (literal)

Note

• Scopu (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Department of Chemical and Geological Sciences, University of Cagliari, Cagliari, Italy; CNR, Environmental Geology and Geoengineering Institute (IGAG), UOS Cagliari, Cagliari, Italy (literal)

Titolo

• Chemical stabilization of metals in mine wastes by transformed red mud and other iron compounds: Laboratory tests (literal)

Abstract

• A series of static and kinetic laboratory-scale tests were designed in order to evaluate the efficacy of transformed red mud (TRM) from bauxite refining residues, commercial zero-valent iron, and synthetic iron (III) hydroxides as sorbents/reagents to minimize the generation of acid drainage and the release of toxic elements from multi-contaminant-laden mine wastes. In particular, in some column experiments the percolation of meteoric water through a waste pile, alternated with periods of dryness, was simulated. Wastes were placed in columns together with sorbents/reagents in three different set-ups: as blended amendment (mixing method), as a bed at the bottom of the column (filtration method), or as a combination of the two previous methods. The filtration methods, which simulate the creation of a permeable reactive barrier downstream of a waste pile, are the most effective, while the use of sorbents/reagents as amendments leads to unsatisfactory results, because of the selective removal of only some contaminants. The efficacy of the filtration method is not significantly affected by the periods of dryness, except for a temporary rise of metal contents in the leachates due to dissolution of soluble salts formed upon evaporation in the dry periods. These results offer original information on advantages/limits in the use of TRM for the treatment of multi-contaminant-laden mine wastes, and represent the starting point for experimentation at larger scale. (literal)

Prodotto di

• Trattamento dei materiali geologici; tecniche e sicurezza degli scavi; recupero dei materiali di scarto (TA.P07.015.001) (Modulo)
• Institute of environmental geology and geoengineering (IGAG) (Istituto)

Autore CNR

• ROBERTO PERETTI (Persona)

Insieme di parole chiave

• Parole chiave di "Chemical stabilization of metals in mine wastes by transformed red mud and other iron compounds: Laboratory tests" (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute of environmental geology and geoengineering (IGAG) (Istituto)
• Trattamento dei materiali geologici; tecniche e sicurezza degli scavi; recupero dei materiali di scarto (TA.P07.015.001) (Modulo)

Autore CNR di

• ROBERTO PERETTI (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Environmental technology (Rivista)

Insieme di parole chiave di

• Parole chiave di "Chemical stabilization of metals in mine wastes by transformed red mud and other iron compounds: Laboratory tests" (Insieme di parole chiave)