Arsenic immobilization by nanoscale zero-valent iron
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F15%3A33155559" target="_blank" >RIV/61989592:15310/15:33155559 - isvavai.cz</a>
Result on the web
<a href="http://www.degruyter.com/view/j/eces.2015.22.issue-1/eces-2015-0002/eces-2015-0002.xml" target="_blank" >http://www.degruyter.com/view/j/eces.2015.22.issue-1/eces-2015-0002/eces-2015-0002.xml</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1515/eces-2015-0002" target="_blank" >10.1515/eces-2015-0002</a>
Alternative languages
Result language
angličtina
Original language name
Arsenic immobilization by nanoscale zero-valent iron
Original language description
Contaminated mine water from the Kank site (Czech Republic) containing arsenic at a concentration of approximately 85 mg/dm(3) was tested in a reaction with elemental iron nanoparticles. In a reductive environment there was a reduction of As to the moresoluble and toxic form of As(III) depending on the pH of the solution. Oxidation of elemental iron creates oxyhydroxides which incorporate As into their structure in the form of mixed complexes and thereby remove and bind dissolved As from the solution.The addition of 0.5 g/dm(3) nZVI to the contaminated water leads to a significant decrease in ORP and concentrations of As to around the detection limit. The pH of the solution is not significantly affected by the addition of nZVI. The main competing anion for co-precipitation is represented by phosphates whose concentration after the addition of nZVI was reduced to 6.5% of the original value. The resulting precipitates were analyzed by XPS, XRF, XRD, SEM-EDX and Mossbauer spectroscopy.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Result continuities
Project
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Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Ecological Chemistry and Engineering S-Chemia I Inzynieria Ekologiczna S
ISSN
1898-6196
e-ISSN
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Volume of the periodical
22
Issue of the periodical within the volume
1
Country of publishing house
PL - POLAND
Number of pages
15
Pages from-to
45-59
UT code for WoS article
000353308700002
EID of the result in the Scopus database
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