Lead and cadmium sorption mechanisms on magnetically modified biochars

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F16%3A00466658" target="_blank" >RIV/86652079:_____/16:00466658 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41330/16:69237

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.biortech.2015.12.056" target="_blank" >http://dx.doi.org/10.1016/j.biortech.2015.12.056</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.biortech.2015.12.056" target="_blank" >10.1016/j.biortech.2015.12.056</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Lead and cadmium sorption mechanisms on magnetically modified biochars

Popis výsledku v původním jazyce

This paper discusses Cd(II) and Pb(II) sorption efficiency of biochars modified by impregnation with magnetic particles. All selected biochar characteristics were significantly affected after the modification. More specifically, the cation exchange capacity increased after the modification, except for grape stalk biochar. However, the changes in the pH value, PZC, and BET surface after modification process were less pronounced. The metal loading rate was also significantly improved, especially for Cd(II) sorption on/in nut shield and plum stone biochars (10- and 16-times increase, respectively). The results indicated that cation exchange (as a metal sorption mechanism) was strengthened after Fe oxide impregnation, which limited the desorbed amount of tested metals. In contrast, the magnetization of grape stalk biochar reduced Pb(II) sorption in comparison with that of pristine biochar. Magnetic modification is, therefore, more efficient for biochars with well-developed structure and for more mobile metals, such as Cd(II). (C) 2015 Elsevier Ltd. All rights reserved.

Název v anglickém jazyce

Lead and cadmium sorption mechanisms on magnetically modified biochars

Popis výsledku anglicky

This paper discusses Cd(II) and Pb(II) sorption efficiency of biochars modified by impregnation with magnetic particles. All selected biochar characteristics were significantly affected after the modification. More specifically, the cation exchange capacity increased after the modification, except for grape stalk biochar. However, the changes in the pH value, PZC, and BET surface after modification process were less pronounced. The metal loading rate was also significantly improved, especially for Cd(II) sorption on/in nut shield and plum stone biochars (10- and 16-times increase, respectively). The results indicated that cation exchange (as a metal sorption mechanism) was strengthened after Fe oxide impregnation, which limited the desorbed amount of tested metals. In contrast, the magnetization of grape stalk biochar reduced Pb(II) sorption in comparison with that of pristine biochar. Magnetic modification is, therefore, more efficient for biochars with well-developed structure and for more mobile metals, such as Cd(II). (C) 2015 Elsevier Ltd. All rights reserved.

Druh

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

CEP obor

EI - Biotechnologie a bionika

OECD FORD obor

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Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Bioresource Technology

ISSN

0960-8524

e-ISSN

—

Svazek periodika

203

Číslo periodika v rámci svazku

MAR

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

318-324

Kód UT WoS článku

000368016000042

EID výsledku v databázi Scopus

2-s2.0-84952705226