About: Reduction and immobilization of hexavalent chromium with coal- and humate-based sorbents

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Two kinds of the commercially available sorbents containing humic acids as active constituents were used for Cr(VI) reduction and removal, namely oxihumolite (naturally occurring weathered young brown coal) and iron humate (IH) (waste material produced during industrial manufacturing of humic substances). The mechanisms of the chromium removal involve the reduction of Cr(VI) (by humic substances or by Fe(II) ions) and subsequent binding of Cr(III) to a humic acid matrix. Other metal-binding mechanisms possibly effective in the process of Cr(VI) removal, e.g., coprecipitation or surface precipitation of Fe(III)/Cr(III) hydroxides, are also discussed. Oxihumolite was able to remove Cr(VI) from strongly acidic solutions with pH below ca. 2. IH, on the other hand, exhibited a maximum sorption capability in slightly acidic solutions with pH above ca. 3. Over the whole examined range (pH 1?5), however, IH was able to reduce Cr(VI) almost completely to its less toxic trivalent state. A sufficiently high sorp Two kinds of the commercially available sorbents containing humic acids as active constituents were used for Cr(VI) reduction and removal, namely oxihumolite (naturally occurring weathered young brown coal) and iron humate (IH) (waste material produced during industrial manufacturing of humic substances). The mechanisms of the chromium removal involve the reduction of Cr(VI) (by humic substances or by Fe(II) ions) and subsequent binding of Cr(III) to a humic acid matrix. Other metal-binding mechanisms possibly effective in the process of Cr(VI) removal, e.g., coprecipitation or surface precipitation of Fe(III)/Cr(III) hydroxides, are also discussed. Oxihumolite was able to remove Cr(VI) from strongly acidic solutions with pH below ca. 2. IH, on the other hand, exhibited a maximum sorption capability in slightly acidic solutions with pH above ca. 3. Over the whole examined range (pH 1?5), however, IH was able to reduce Cr(VI) almost completely to its less toxic trivalent state. A sufficiently high sorp (en)
Title	Reduction and immobilization of hexavalent chromium with coal- and humate-based sorbents Reduction and immobilization of hexavalent chromium with coal- and humate-based sorbents (en)
skos:prefLabel	Reduction and immobilization of hexavalent chromium with coal- and humate-based sorbents Reduction and immobilization of hexavalent chromium with coal- and humate-based sorbents (en)
skos:notation	RIV/44555601:13520/09:00005141!RIV10-MSM-13520___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(1M0554)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Pilařová, Věra Janoš, Pavel
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 Jana Evangelisty Purkyně v Ústí nad Labem / Fakulta životního prostředí
http://linked.open...dnocenehoVysledku	338445
http://linked.open...ai/riv/idVysledku	RIV/44555601:13520/09:00005141
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Chromium(VI); Brown coal; Humic substances; Reduction; Immobilization (en)
http://linked.open.../riv/klicoveSlovo	Humic substances Immobilization Reduction Brown coal Chromium(VI)
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[7F6AAED715FD]
http://linked.open...i/riv/nazevZdroje	Chemosphere
http://linked.open...in/vavai/riv/obor	DJ
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Advanced Remedial Technologies and Processes
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	75
http://linked.open...iv/tvurceVysledku	Pilařová, Věra Janoš, Pavel Šedlbauer, Josef Bradnová, Petra Hůla, Václav
http://linked.open...ain/vavai/riv/wos	000266145600006
issn	0045-6535
number of pages	7 (xsd:int)
http://localhost/t...ganizacniJednotka	13520
is http://linked.open...avai/riv/vysledek of	Reduction and immobilization of hexavalent chromium with coal- and humate-based sorbents Reduction and immobilization of hexavalent chromium with coal- and humate-based sorbents Reduction and immobilization of hexavalent chromium with coal- and humate-based sorbents Reduction and immobilization of hexavalent chromium with coal- and humate-based sorbents

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