About: Zero-valent iron nanoparticles in treatment of acid mine water from in situ uranium leaching

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About: Zero-valent iron nanoparticles in treatment of acid mine water from in situ uranium leaching Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Acid mine water from in situ chemical leaching of uranium (Straz pod Ralskem, Czech Republic) was treated in laboratory scale experiments by zero-valent iron nanoparticles (nZVI). For the first time, nZVI were applied for the treatment of the real acid water system containing the miscellaneous mixture of pollutants, where the various removal mechanisms occur simultaneously. Toxicity of the treated saline acid water is caused by major contaminants represented by aluminum and sulphates in a high concentration, as well as by microcontaminants like As, Be, Cd, Cr, Cu, Ni, U, V, and Zn. Laboratory batch experiments proved a significant decrease in concentrations of all the monitored pollutants due to an increase in pH and a decrease in oxidation-reduction potential related to an application of nZVI. The assumed mechanisms of contaminants removal include precipitation of cations in a lower oxidation state, precipitation caused by a simple pH increase and co-precipitation with the formed iron oxyhydroxides. The possibility to control the reaction kinetics through the nature of the surface stabilizing shell (polymer vs. FeO nanolayer) is discussed as an important practical aspect. Acid mine water from in situ chemical leaching of uranium (Straz pod Ralskem, Czech Republic) was treated in laboratory scale experiments by zero-valent iron nanoparticles (nZVI). For the first time, nZVI were applied for the treatment of the real acid water system containing the miscellaneous mixture of pollutants, where the various removal mechanisms occur simultaneously. Toxicity of the treated saline acid water is caused by major contaminants represented by aluminum and sulphates in a high concentration, as well as by microcontaminants like As, Be, Cd, Cr, Cu, Ni, U, V, and Zn. Laboratory batch experiments proved a significant decrease in concentrations of all the monitored pollutants due to an increase in pH and a decrease in oxidation-reduction potential related to an application of nZVI. The assumed mechanisms of contaminants removal include precipitation of cations in a lower oxidation state, precipitation caused by a simple pH increase and co-precipitation with the formed iron oxyhydroxides. The possibility to control the reaction kinetics through the nature of the surface stabilizing shell (polymer vs. FeO nanolayer) is discussed as an important practical aspect. (en)
Title	Zero-valent iron nanoparticles in treatment of acid mine water from in situ uranium leaching Zero-valent iron nanoparticles in treatment of acid mine water from in situ uranium leaching (en)
skos:prefLabel	Zero-valent iron nanoparticles in treatment of acid mine water from in situ uranium leaching Zero-valent iron nanoparticles in treatment of acid mine water from in situ uranium leaching (en)
skos:notation	RIV/61989592:15310/11:33116032!RIV12-MSM-15310___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(1M0512), P(ED2.1.00/03.0058), P(KAN108040651), P(KAN115600801)
http://linked.open...iv/cisloPeriodika	8
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Jančík, Dalibor Zbořil, Radek Filip, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	243002
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/11:33116032
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Zero-valent iron nanoparticles, Acid mine water, Water treatment, Contaminant removal, Surface stabilizing shell (en)
http://linked.open.../riv/klicoveSlovo	Zero-valent iron nanoparticles Water treatment Contaminant removal Surface stabilizing shell Acid mine water
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[E3F549F568BB]
http://linked.open...i/riv/nazevZdroje	Chemosphere
http://linked.open...in/vavai/riv/obor	DJ
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Research center of powdered nanomaterials Regional Centre of Advanced Technologies and Materials New technologies of preparation and exploitation of iron oxide-based nanoparticles for environmental, industrial and medical applications Research of production and application of zero-valent iron nanoparticles for remediation of contaminated goundwater
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	82
http://linked.open...iv/tvurceVysledku	Filip, Jan Jančík, Dalibor Lacinová, Lenka Zbořil, Radek Černík, Miroslav Klimková, Štěpánka
http://linked.open...ain/vavai/riv/wos	000287432100016
issn	0045-6535
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.chemosphere.2010.11.075
http://localhost/t...ganizacniJednotka	15310

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