Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths

Structured catalysts were prepared, characterized and evaluated in NO3 - removal from drinking water. Different suspensions containing a previously optimized PdCu/5wt% ZrO2-Al2O3 powder catalyst (hereinafter PdCu/5ZAp) were prepared and deposited on cordierite monoliths by washcoating. The effect of...

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Autores principales: Jaworski, María Angélica, Barbero, Bibiana P., Siri, Guillermo Jorge, Casella, Mónica Laura
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Química
Water pollution
Nitrate
Cordierite monoliths
PdCu catalyst
Structured catalyst
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/108478
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-108478
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Water pollution
Nitrate
Cordierite monoliths
PdCu catalyst
Structured catalyst
spellingShingle Química
Water pollution
Nitrate
Cordierite monoliths
PdCu catalyst
Structured catalyst
Jaworski, María Angélica
Barbero, Bibiana P.
Siri, Guillermo Jorge
Casella, Mónica Laura
Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths
topic_facet Química
Water pollution
Nitrate
Cordierite monoliths
PdCu catalyst
Structured catalyst
description Structured catalysts were prepared, characterized and evaluated in NO3 - removal from drinking water. Different suspensions containing a previously optimized PdCu/5wt% ZrO2-Al2O3 powder catalyst (hereinafter PdCu/5ZAp) were prepared and deposited on cordierite monoliths by washcoating. The effect of suspension concentration, the particle size, the immersion number, the use of suspension stabilizer agent, and an alumina precoating on the coating adherence and catalytic performance were studied. All the prepared structured catalysts were active for the elimination of NO3 - and presented good selectivity to N2 (> 93%) in synthetic water samples. The catalyst performance was related to the amount of deposited catalyst. The highest activity and the best coating adherence were obtained with the structured catalyst prepared by a single immersion in a 14 wt% concentration suspension, which was obtained from the powder catalyst milled for 10 h and stabilized with colloidal alumina. This catalyst also showed good activity when it was reused for four cycles and when it was evaluated with real water samples.
format Articulo
Articulo
author Jaworski, María Angélica
Barbero, Bibiana P.
Siri, Guillermo Jorge
Casella, Mónica Laura
author_facet Jaworski, María Angélica
Barbero, Bibiana P.
Siri, Guillermo Jorge
Casella, Mónica Laura
author_sort Jaworski, María Angélica
title Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths
title_short Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths
title_full Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths
title_fullStr Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths
title_full_unstemmed Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths
title_sort removal of nitrate from drinking water by using pdcu structured catalysts based on cordierite monoliths
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/108478
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