Title:
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Ammonia removal from water by liquid-liquid membrane contactor under closed loop regime
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Author:
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Licon Bernal, Edxon Eduardo; Casas Garriga, Sandra; Alcaraz, Aurora; Cortina Pallás, José Luís; Valderrama Angel, César Alberto
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Química; Universitat Politècnica de Catalunya. SETRI - Grup de Tècniques de Separació i Tractament de Residus Industrials |
Abstract:
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Ammonia separation from water by a
membrane contactor was simulated on transient
state and compared with experimental data.
Aqueous low concentrated solution of
ammonium with high pH has been pumped
inside a hydrophobic hollow fiber (lumen),
sulfuric acid solution in the outside part and the feeding solutions are in closed loop
configuration. In order to simulate the separation process, the equations were developed considering radial and axial diffusion and convection in the lumen with a well-developed parabolic velocity profile. The model proposed shows minimal deviations when is compared against experimental data. This study shows that the most important parameters to control during the operation are the flow rate and the pH, mainly the last one, due to high dependence in
chemical equilibrium of ammonium reaction to
ammonia. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria química::Química del medi ambient::Química de l'aigua -Àrees temàtiques de la UPC::Enginyeria química::Química inorgànica::Compostos inorgànics -Àrees temàtiques de la UPC::Enginyeria química::Química inorgànica::Compostos inorgànics -Ammonia -Amoníac |
Rights:
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Document type:
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Article - Published version Conference Object |
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