Characterization and pH-dependent environmental stability of arsenic trioxide-containing copper smelter flue dust
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10375226" target="_blank" >RIV/00216208:11310/18:10375226 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.jenvman.2017.12.044" target="_blank" >https://doi.org/10.1016/j.jenvman.2017.12.044</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jenvman.2017.12.044" target="_blank" >10.1016/j.jenvman.2017.12.044</a>
Alternative languages
Result language
angličtina
Original language name
Characterization and pH-dependent environmental stability of arsenic trioxide-containing copper smelter flue dust
Original language description
Increasing amounts of impurities (especially As) in Cu ores have aggravated the problem of flue dust generation in recent years. As an example from a smelter processing As-rich Cu ores, we characterized a flue dust particularly rich in As (>50 wt%) to understand its mineralogy and pH-dependent leaching behavior, with special emphasis on binding, release and solubility controls of inorganic contaminants (As, Bi, Cd, Cu, Pb, Sb, Zn). Whereas arsenolite (As2O3) was the major host for As and Sb, other contaminants were bound in sulfides, arsenates, alloys and slag-like particles. The EU regulatory leaching test (EN 12457-2) indicated that leached As, Cd, Sb and Zn significantly exceeded the limit values for landfills accepting hazardous waste. The pH-dependent leaching test (CENTS 14997) revealed that As, Sb and Pb exhibited the greatest leaching at pH 11-12, whereas Cd, Cu and Zn were leached most under acidic condition (pH 3) and Bi leaching was pH-independent. Mineralogical investigation of leached residue coupled with geochemical modeling confirmed that newly formed Ca, Pb and Ca-Pb arsenates (mimetite, Pb-5(AsO4)(3)Cl) partly control the release of As and other contaminants under circumneutral and alkaline conditions and will be of key importance for the fate of smelter-derived contamination in soils or when stabilization technology is employed.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10505 - Geology
Result continuities
Project
<a href="/en/project/GA13-17501S" target="_blank" >GA13-17501S: Reactivity of anthropogenic metal-bearing geomaterials in soils</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Environmental Management
ISSN
0301-4797
e-ISSN
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Volume of the periodical
209
Issue of the periodical within the volume
MARCH
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
71-80
UT code for WoS article
000425074400009
EID of the result in the Scopus database
2-s2.0-85038845555