LANDFILLED FINE GRAINED MIXED INDUSTRIAL WASTE: METAL RECOVERY

Jeroen Spooren, Karlien Van den Bergh, Peter Nielsen, Mieke Quaghebeur

Abstract


This study describes the recovery and removal of heavy metals through washing from fine grained materials, recovered from mixed industrial waste (IW) from a landfill site. During this first screening, solutions of different concentrations of three inorganic acids (H2SO4, HCl and HNO3) were tested as possible lixiviants. It has been shown that the extraction of most heavy metals should take place at a well defined pH range in order to avoid dissolution of the matrix material (consisting mainly of Si, Fe, Al, Ca). Furthermore, the buffering effect of the studied material was shown to be stronger for smaller particle sizes, due to larger specific contact surfaces with the lixiviants and differences in composition.


Keywords


recovery; enhanced landfill mining; hydrometallurgy; waste material fines

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References


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DOI: http://dx.doi.org/10.12776/ams.v19i3.157

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SJR 2014: 0.502 - Q2 Metals and Alloys, 39./125.

SJR 2013: 0.309 - Q2 Metals and Alloys, 59./121.       

SJR 2012: 0.325 - Q2 Metals and Alloys, 33./90. (A)

SJR 2011: 0.363 - Q2 Metals and Alloys, 29./90. (A)

SJR 2010: 0.151 - Q3 Metals and Alloys, 68./90. (B)

SJR 2009: 0 - Q4 Metals and Alloys, 89./90. (C - according to the Slovak Journal Quality Criteria)

Indexed in: SCOPUS, Web of Science Core Collection, CROSSREF, GOOGLE SCHOLAR,CAMBRIDGE SCIENTIFIC ABSTRACTS, Committee on Publication Ethics (COPE)

IČO 00 397 610

EV 5174/15

p-ISSN 1335-1532, e-ISSN 1338-1156