Comparison of Bimetallic and Trimetallic Catalyst in Reductive Dechlorination; Influence of Copper Addition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F15%3A00446222" target="_blank" >RIV/67985858:_____/15:00446222 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.jmest.org/wp-content/uploads/JMESTN42350950.pdf" target="_blank" >http://www.jmest.org/wp-content/uploads/JMESTN42350950.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of Bimetallic and Trimetallic Catalyst in Reductive Dechlorination; Influence of Copper Addition

Popis výsledku v původním jazyce

Efficiency of reduction of PCBs in aqueous solution was examined with bimetallic catalyst Fe-C/Pd consisting of palladized grey cast iron and with a new trimetallic catalyst (Cu-Fe-C/Pd) consisting of a copper metal plate with microparticles of palladized grey iron (bimetallic catalyst). PCB solutions were prepared using DELOR 103. The trimetallic catalyst was significantly efficient than bimetallic one. Trimetallic catalyst reduced the concentration of PCB to approximately 1% of its initial value during 70 minutes and bimetallic during 240 hours. More than 20% of unreacted PCBs were found adsorbed on the surfaces of the bimetallic catalysts. Presence of metal copper accelerates formation of the oxidation products and their release from the catalyst surface as the flocks recovers activity of the trimetallic catalyst. It means the reductive dechlorination of PCB is not the only decisive control step in the reduction of PCB in water by zero valence metals.

Název v anglickém jazyce

Comparison of Bimetallic and Trimetallic Catalyst in Reductive Dechlorination; Influence of Copper Addition

Popis výsledku anglicky

Efficiency of reduction of PCBs in aqueous solution was examined with bimetallic catalyst Fe-C/Pd consisting of palladized grey cast iron and with a new trimetallic catalyst (Cu-Fe-C/Pd) consisting of a copper metal plate with microparticles of palladized grey iron (bimetallic catalyst). PCB solutions were prepared using DELOR 103. The trimetallic catalyst was significantly efficient than bimetallic one. Trimetallic catalyst reduced the concentration of PCB to approximately 1% of its initial value during 70 minutes and bimetallic during 240 hours. More than 20% of unreacted PCBs were found adsorbed on the surfaces of the bimetallic catalysts. Presence of metal copper accelerates formation of the oxidation products and their release from the catalyst surface as the flocks recovers activity of the trimetallic catalyst. It means the reductive dechlorination of PCB is not the only decisive control step in the reduction of PCB in water by zero valence metals.

Druh

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

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

<a href="/cs/project/TA04020700" target="_blank" >TA04020700: Dekontaminace brownfieldů komplexně kontaminovaných organickými látkami i těžkými kovy</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

Journal of Multidisciplinary Engineering Science and Technology (JMEST)

ISSN

3159-0040

e-ISSN

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Svazek periodika

2

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

5

Strana od-do

1954-1958

Kód UT WoS článku

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EID výsledku v databázi Scopus

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