Analysis of total metals in waste molding and core sands from ferrous and non-ferrous foundries

Waste molding and core sands from the foundry industry have been successfully used around the world as byproducts in geotechnical and agricultural applications. Although waste foundry sands (WFSs) are generally not considered hazardous in nature, relevant data are not available in Argentina. This st...

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Detalles Bibliográficos
Autores principales: Miguel, Roberto Esteban, Ippolito, James A., Leytem, April B., Porta, Atilio Andrés, Noriega, Roxana Bettina Banda, Dungan, Robert S.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Ingeniería
Beneficial use
Binder
Core
Foundry
Metals
Molding sand
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/128238
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-128238
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería
Beneficial use
Binder
Core
Foundry
Metals
Molding sand
spellingShingle Ingeniería
Beneficial use
Binder
Core
Foundry
Metals
Molding sand
Miguel, Roberto Esteban
Ippolito, James A.
Leytem, April B.
Porta, Atilio Andrés
Noriega, Roxana Bettina Banda
Dungan, Robert S.
Analysis of total metals in waste molding and core sands from ferrous and non-ferrous foundries
topic_facet Ingeniería
Beneficial use
Binder
Core
Foundry
Metals
Molding sand
description Waste molding and core sands from the foundry industry have been successfully used around the world as byproducts in geotechnical and agricultural applications. Although waste foundry sands (WFSs) are generally not considered hazardous in nature, relevant data are not available in Argentina. This study aimed to quantify metals in waste molding and core sands from foundries using a variety of metal-binder combinations. Metal concentrations in WFSs were compared to those in virgin silica sands (VSSs), surface soil and soil guidance levels according to hazardous waste law 24.051 from the Argentinean Secretariat of Environment and Sustainable Development. A total analysis for Ag, Al, Ba, Be, Cd, Co, Cr, Cu, Fe, Mg, Mn, Mo, Ni, Pb, Sb, Te, Tl, V, and Zn was conducted on 96 WFSs and 14 VSSs collected from 17 small and medium-sized foundries. The majority of WFSs analyzed, regardless of metal cast and binder type, contained elemental concentrations similar to those found in virgin sands and native soils. In several cases where alkyd urethane binder was used, Co and Pb concentrations were elevated in the waste sands. Elevated Cr, Mo, Ni, and Tl concentrations associated with the virgin sands should not be an issue since these elements are bound within the silica sand matrix. Because of the naturally low elemental concentrations found in most WFSs examined in this study, they should not be considered hazardous waste, thus making them available for encapsulated and unencapsulated beneficial use applications.
format Articulo
Articulo
author Miguel, Roberto Esteban
Ippolito, James A.
Leytem, April B.
Porta, Atilio Andrés
Noriega, Roxana Bettina Banda
Dungan, Robert S.
author_facet Miguel, Roberto Esteban
Ippolito, James A.
Leytem, April B.
Porta, Atilio Andrés
Noriega, Roxana Bettina Banda
Dungan, Robert S.
author_sort Miguel, Roberto Esteban
title Analysis of total metals in waste molding and core sands from ferrous and non-ferrous foundries
title_short Analysis of total metals in waste molding and core sands from ferrous and non-ferrous foundries
title_full Analysis of total metals in waste molding and core sands from ferrous and non-ferrous foundries
title_fullStr Analysis of total metals in waste molding and core sands from ferrous and non-ferrous foundries
title_full_unstemmed Analysis of total metals in waste molding and core sands from ferrous and non-ferrous foundries
title_sort analysis of total metals in waste molding and core sands from ferrous and non-ferrous foundries
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/128238
work_keys_str_mv AT miguelrobertoesteban analysisoftotalmetalsinwastemoldingandcoresandsfromferrousandnonferrousfoundries
AT ippolitojamesa analysisoftotalmetalsinwastemoldingandcoresandsfromferrousandnonferrousfoundries
AT leytemaprilb analysisoftotalmetalsinwastemoldingandcoresandsfromferrousandnonferrousfoundries
AT portaatilioandres analysisoftotalmetalsinwastemoldingandcoresandsfromferrousandnonferrousfoundries
AT noriegaroxanabettinabanda analysisoftotalmetalsinwastemoldingandcoresandsfromferrousandnonferrousfoundries
AT dunganroberts analysisoftotalmetalsinwastemoldingandcoresandsfromferrousandnonferrousfoundries
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