Evaluating the potential of three Fe- and Mn-(nano)oxides for the stabilization of Cd, Cu and Pb in contaminated soils
Language English Country Great Britain, England Media print-electronic
Document type Evaluation Study, Journal Article, Research Support, Non-U.S. Gov't
PubMed
25178528
DOI
10.1016/j.jenvman.2014.08.004
PII: S0301-4797(14)00399-5
Knihovny.cz E-resources
- Keywords
- Adsorption, Iron, Manganese, Oxide, Remediation,
- MeSH
- Adsorption MeSH
- Decontamination MeSH
- Cadmium chemistry MeSH
- Soil Pollutants chemistry MeSH
- Humans MeSH
- Copper chemistry MeSH
- Lead chemistry MeSH
- Oxides chemistry MeSH
- Manganese Compounds chemistry MeSH
- Metals, Heavy chemistry MeSH
- Environmental Pollution prevention & control MeSH
- Check Tag
- Humans MeSH
- Publication type
- Journal Article MeSH
- Evaluation Study MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Cadmium MeSH
- Soil Pollutants MeSH
- manganese oxide MeSH Browser
- Copper MeSH
- Lead MeSH
- Oxides MeSH
- Manganese Compounds MeSH
- Metals, Heavy 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.
References provided by Crossref.org
Root water transport of Helianthus annuus L. under iron oxide nanoparticle exposure
