Metal(loid)s behaviour in soils amended with nano zero-valent iron as a function of pH and time

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F17%3A70880" target="_blank" >RIV/60460709:41330/17:70880 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jenvman.2016.06.003" target="_blank" >http://dx.doi.org/10.1016/j.jenvman.2016.06.003</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jenvman.2016.06.003" target="_blank" >10.1016/j.jenvman.2016.06.003</a>

Result language
angličtina
Original language name
Metal(loid)s behaviour in soils amended with nano zero-valent iron as a function of pH and time
Original language description
Nano zero-valent iron nZVI is currently investigated as a stabilising amendment for contaminated soils. The effect of pH (4-8) and time (48 and 192 h) on the behaviour of nZVI-treated Pb-Zn and As-contaminated soil samples was assessed. Additionally, soil leachates were subsequently used to study the direct interaction between soil solution components and nZVI particles in terms of mineralogical changes and contaminant retention. A typical U-shaped leaching trend as a function of pH was observed for Cd, Pb and Zn, while As was released predominantly under alkaline conditions. Oxidising conditions prevailed, so pH was the key controlling parameter rather than redox conditions. Generally, longer contact time resulted in increased soluble concentrations of metal(loid)s. However, the stabilisation effect of nZVI was only observed after the direct soil leachate-nZVI interactions, showing enhanced redox and sorption processes for the studied metals. A significant decrease of dissolved As concentrations wa
Czech name
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Czech description
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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
10511 - Environmental sciences (social aspects to be 5.7)

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
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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