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Adsorption of arsenic on granular ferric hydroxide (GEH®). Impact of initial concentration of arsenic(V) on kinetics and equilibrium state
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Title: Adsorption of arsenic on granular ferric hydroxide (GEH®). Impact of initial concentration of arsenic(V) on kinetics and equilibrium state

Autor:

Saldaña-Robles, Adriana ; Saldaña-Robles, Alberto ; Márquez-Herrera, Alfredo ; de la Luz Ruiz-Aguilar, Graciela Ma ; Saldaña-Robles, Noé

Współtwórca:

Majewska-Nowak, Katarzyna Maria. Redakcja

Opis:

Environment Protection Engineering. Vol. 44, 2018, nr 3, s. 51-62

Abstrakt:

The present study discusses the adsorption kinetics of arsenic(V) on granular ferric hydroxide (GEH) and the GEH adsorption capacity for arsenic(V) at equilibrium. The impact of temperature on GEH adsorption capacity was studied, as well as the effects of the initial concentration of arsenic(V) and GEH concentration on the adsorption rates of arsenic(V). The Freundlich isotherm describes the arsenic(V) adsorption behavior reasonably well (r2 > 0.965). The adsorption kinetics was studied by fitting the experimental data to both first-order and second-order models. The maximum adsorption capacity of arsenic(V) on GEH was 2.701 mg·g–1, which is higher than the adsorption capacities of other adsorbents reported. The kinetics of arsenic(V) adsorption was well defined by the second-order model, with the correlation coefficients in the range of 0.960–0.987. This study shows that due to its properties, GEH is a good candidate for removal of arsenic(V) from groundwater.

Wydawca:

Oficyna Wydawnicza Politechniki Wrocławskiej

Miejsce wydania:

Wrocław

Data wydania:

2018

Typ zasobu:

artykuł

Identyfikator zasobu:

doi:10.5277/epe180304 ; oai:dbc.wroc.pl:72314

Źródło:

<sygn. PWr A4232I> ; click here to follow the link ; click here to follow the link

Język:

eng

Powiązania:

Environment Protection Engineering ; Environment Protection Engineering. Vol. 44, 2018 ; Environment Protection Engineering. Vol. 44, 2018, nr 3

Prawa:

Wszystkie prawa zastrzeżone (Copyright)

Prawa dostępu:

Dla wszystkich w zakresie dozwolonego użytku

Lokalizacja oryginału:

Politechnika Wrocławska

Tytuł publikacji grupowej:

Environment Protection Engineering

Subject and keywords:

ochrona środowiska inżynieria środowiska czasopisma

Object collections:

Last modified:

1 sie 2019

In our library since:

1 sie 2019

Number of object content hits:

77

Number of object content views in PDF format

106

All available object's versions:

https://dlibra.kdm.wcss.pl/publication/140109

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Edition name Date
Saldaña-Robles, Adriana, 2018, Adsorption of arsenic on granular ferric hydroxide (GEH®). Impact of initial concentration of arsenic(V) on kinetics and equilibrium state 1 sie 2019

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