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Efficient nitrate adsorption from water by aluminum powder. Kinetic, equilibrium and influence of anion competition studies
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Title: Efficient nitrate adsorption from water by aluminum powder. Kinetic, equilibrium and influence of anion competition studies

Autor:

Fakhri, Yadollah ; Kakavandi, Babak ; Safaei, Zahra ; Asadi, Anvar ; Mohsen Mohseni, Seyed ; Golestanifar, Hafez

Współtwórca:

Majewska-Nowak, Katarzyna Maria. Redakcja

Opis:

Environment Protection Engineering. Vol. 44, 2018, nr 3, s. 19-31

Abstrakt:

The feasibility of aluminum powder (with particle size of 75–150 μm) for nitrate removal from aqueous solutions has been investigated. Adsorption was examined in function of initial nitrate concentration, contact time, pH and influence of other interfering anions. Maximum nitrate removal occurred at equilibrium pH of 10. The kinetics of adsorption of nitrate ions was discussed based on three kinetic models, namely: the pseudo-first order, the pseudo-second order and the intraparticle diffusion model. The experimental data fitted the pseudo-second order kinetic model very well; the rate constant was 410–4 g/ (mg·min) at the concentration of 3 NO of 100 mg/dm3. The adsorption data followed both Langmuir (R2 = 0.808) and Freundlich (R2 = 0.865) isotherms probably due to the real heterogeneous nature of the surface sites involved in the nitrate uptake. The maximum sorption capacity of aluminum powder for nitrate adsorption was found to be ca. 45.2 mg/g at room temperature. The results indicate that aluminum powder is an interesting alternative for nitrate removal from the water.

Wydawca:

Oficyna Wydawnicza Politechniki Wrocławskiej

Miejsce wydania:

Wrocław

Data wydania:

2018

Typ zasobu:

artykuł

Identyfikator zasobu:

doi:10.5277/epe180302 ; oai:dbc.wroc.pl:72312

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:

Aug 1, 2019

In our library since:

Aug 1, 2019

Number of object content hits:

99

Number of object content views in PDF format

117

All available object's versions:

https://www.dbc.wroc.pl/publication/140107

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Edition name Date
Efficient nitrate adsorption from water by aluminum powder. Kinetic, equilibrium and influence of anion competition studies Aug 1, 2019

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