Selected Fe and Mn (nano)oxides as perspective amendments for the stabilization of As in contaminated soils

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F16%3A70215" target="_blank" >RIV/60460709:41330/16:70215 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s11356-016-6200-9" target="_blank" >http://dx.doi.org/10.1007/s11356-016-6200-9</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11356-016-6200-9" target="_blank" >10.1007/s11356-016-6200-9</a>

Result language
angličtina
Original language name
Selected Fe and Mn (nano)oxides as perspective amendments for the stabilization of As in contaminated soils
Original language description
An amorphous Mn oxide (AMO), nanomaghemite, and nanomagnetite were used as potential amendments reducing the mobility of As in three contrasting contaminated soils differing in origin of As contamination. Adsorption experiments and XPS analyses combined with incubation batch experiments and pH-static leaching tests were used. The AMO showed excellent adsorption capacity for As(V) reaching a maximum of 1,79 mmol g-1 at pH 7 and 8. Interestingly, the adsorption capacity in this case decreases with decreasing pH, probably as a result of AMO dissolution at lower pH values. Chemical sorption of As(V) onto AMO was further confirmed with XPS. Both Fe nano-oxides proved the highest adsorption capacity at pH 4 reaching 11 mg g-1 of adsorbed As(V). The AMO was also the most efficient amendment for decreasing As concentrations in soil solutions during 8 weeks of incubation. Additionally, pH-static leaching tests were performed at pH 4, 5, 6, 7, and natural pH (not adjusted) and AMO again proved the highest abil
Czech name
—
Czech description
—

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DK - Contamination and decontamination of soil including pesticides
OECD FORD branch
—

Project
<a href="/en/project/GA15-07117S" target="_blank" >GA15-07117S: Modeling the competitive adsorption of metals and As onto Fe nano-oxides: Implication for soil remediation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)