Evaluating the potential of three Fe- and Mn-(nano)oxides for the stabilization of Cd, Cu and Pb in contaminated soils
Jazyk angličtina Země Velká Británie, Anglie Médium print-electronic
Typ dokumentu hodnotící studie, časopisecké články, práce podpořená grantem
PubMed
25178528
DOI
10.1016/j.jenvman.2014.08.004
PII: S0301-4797(14)00399-5
Knihovny.cz E-zdroje
- Klíčová slova
- Adsorption, Iron, Manganese, Oxide, Remediation,
- MeSH
- adsorpce MeSH
- dekontaminace MeSH
- kadmium chemie MeSH
- látky znečišťující půdu chemie MeSH
- lidé MeSH
- měď chemie MeSH
- olovo chemie MeSH
- oxidy chemie MeSH
- sloučeniny manganu chemie MeSH
- těžké kovy chemie MeSH
- znečištění životního prostředí prevence a kontrola MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- hodnotící studie MeSH
- práce podpořená grantem MeSH
- Názvy látek
- kadmium MeSH
- látky znečišťující půdu MeSH
- manganese oxide MeSH Prohlížeč
- měď MeSH
- olovo MeSH
- oxidy MeSH
- sloučeniny manganu MeSH
- těžké kovy MeSH
The potential of three Fe- and Mn-(nano)oxides for stabilizing Cd, Cu and Pb in contaminated soils was investigated using batch and column experiments, adsorption tests and tests of soil microbial activity. A novel synthetic amorphous Mn oxide (AMO), which was recently proposed as a stabilizing amendment, proved to be the most efficient in decreasing the mobility of the studied metals compared to nano-maghemite and nano-magnetite. Its application resulted in significant decreases of exchangeable metal fractions (92%, 92% and 93% decreases of Cd, Cu and Pb concentrations, respectively). The adsorption capacity of the AMO was an order of magnitude higher than those recorded for the other amendments. It was also the most efficient treatment for reducing Cu concentrations in the soil solution. No negative effects on soil microorganisms were recorded. On the other hand, the AMO was able to dissolve soil organic matter to some extent.
Citace poskytuje Crossref.org
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