Redistribution of cadmium and lead fractions in contaminated soil samples due to experimental leaching

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10306915" target="_blank" >RIV/00216208:11310/15:10306915 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41210/15:65155

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.geoderma.2014.11.022" target="_blank" >http://dx.doi.org/10.1016/j.geoderma.2014.11.022</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.geoderma.2014.11.022" target="_blank" >10.1016/j.geoderma.2014.11.022</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Redistribution of cadmium and lead fractions in contaminated soil samples due to experimental leaching

Popis výsledku v původním jazyce

The sequential extraction procedure (SEP) is often applied to soils for identification of binding phases but rarely is it used to monitor binding dynamics temporally. In this study, contaminated soils were subjected to two different leaching scenarios, one analogous to a hydrostatic or stagnant water exposure, and one that represents a hydrodynamic event such as heavy precipitation. A four step SEP was applied before and after each stage of leaching and the adsorption dynamics of cadmium and lead were studied. In the hydrostatic experiment, removal of Cd and Pb occurred largely from the residual fraction (from initially >30%-zero Cd after the 720 h experiment, 40%-<20% Pb, and from 50%-20% Cd, >50%-40% Pb, from organic and mineral soil horizons respectively). There was a significant redistribution onto the Fe/Mn oxides (from initially 30%-60% Cd after 720 h, 40%-65% Pb, and from 15%-30% Cd, 45%-60% Pb for organic and mineral soils respectively). A significant redistribution of Cd onto

Název v anglickém jazyce

Redistribution of cadmium and lead fractions in contaminated soil samples due to experimental leaching

Popis výsledku anglicky

The sequential extraction procedure (SEP) is often applied to soils for identification of binding phases but rarely is it used to monitor binding dynamics temporally. In this study, contaminated soils were subjected to two different leaching scenarios, one analogous to a hydrostatic or stagnant water exposure, and one that represents a hydrodynamic event such as heavy precipitation. A four step SEP was applied before and after each stage of leaching and the adsorption dynamics of cadmium and lead were studied. In the hydrostatic experiment, removal of Cd and Pb occurred largely from the residual fraction (from initially >30%-zero Cd after the 720 h experiment, 40%-<20% Pb, and from 50%-20% Cd, >50%-40% Pb, from organic and mineral soil horizons respectively). There was a significant redistribution onto the Fe/Mn oxides (from initially 30%-60% Cd after 720 h, 40%-65% Pb, and from 15%-30% Cd, 45%-60% Pb for organic and mineral soils respectively). A significant redistribution of Cd onto

Druh

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

CEP obor

DK - Kontaminace a dekontaminace půdy včetně pesticidů

OECD FORD obor

—

Projekt

<a href="/cs/project/QI112A201" target="_blank" >QI112A201: Metody hodnocení zátěže lesních půd rizikovými látkami a identifikace ekologických rizik kontaminace lesních půd</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Geoderma

ISSN

0016-7061

e-ISSN

—

Svazek periodika

241

Číslo periodika v rámci svazku

MARCH

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

126-135

Kód UT WoS článku

000348083700014

EID výsledku v databázi Scopus

2-s2.0-84912051488