Stability, transformations and stabilizing potential of an amorphous manganese oxide and its surface-modified form in contaminated soils

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F16%3A71301" target="_blank" >RIV/60460709:41330/16:71301 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/16:10330655

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.apgeochem.2016.10.020" target="_blank" >http://dx.doi.org/10.1016/j.apgeochem.2016.10.020</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apgeochem.2016.10.020" target="_blank" >10.1016/j.apgeochem.2016.10.020</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Stability, transformations and stabilizing potential of an amorphous manganese oxide and its surface-modified form in contaminated soils

Popis výsledku v původním jazyce

A surface-modified amorphous manganese oxide (SM-AMO) was prepared to increase the stability of a previously studied promising stabilizing agent and to compare its immobilizing efficiency with respect to contaminating metals with the original material. To synthesize the SM-AMO, the AMO surface was synthetically covered with a coating of MnCO3 because newly formed rhodochrosite precipitates were previously found to increase the stability of AMO particles in soils. A preliminary experiment evaluating the long-term stability of both materials in pure water suggested higher stability for the SM-AMO particles, showing a smaller release of Mn compared to the original AMO. An adsorption kinetics study focused on As, Cd, Pb and Zn showed lower adsorption rates and adsorption capacity for Zn, probably as a result of partial surface passivation. In comparison to these results for simple controlled systems, different effects were recorded when the two materials were applied to contaminated soils. When incubated

Název v anglickém jazyce

Stability, transformations and stabilizing potential of an amorphous manganese oxide and its surface-modified form in contaminated soils

Popis výsledku anglicky

A surface-modified amorphous manganese oxide (SM-AMO) was prepared to increase the stability of a previously studied promising stabilizing agent and to compare its immobilizing efficiency with respect to contaminating metals with the original material. To synthesize the SM-AMO, the AMO surface was synthetically covered with a coating of MnCO3 because newly formed rhodochrosite precipitates were previously found to increase the stability of AMO particles in soils. A preliminary experiment evaluating the long-term stability of both materials in pure water suggested higher stability for the SM-AMO particles, showing a smaller release of Mn compared to the original AMO. An adsorption kinetics study focused on As, Cd, Pb and Zn showed lower adsorption rates and adsorption capacity for Zn, probably as a result of partial surface passivation. In comparison to these results for simple controlled systems, different effects were recorded when the two materials were applied to contaminated soils. When incubated

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DD - Geochemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

APPLIED GEOCHEMISTRY

ISSN

0883-2927

e-ISSN

—

Svazek periodika

2016

Číslo periodika v rámci svazku

75

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

12

Strana od-do

125-136

Kód UT WoS článku

000390084900013

EID výsledku v databázi Scopus

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