Coupling of bipolar membrane electrodialysis and ammonia stripping for direct treatment of wastewaters containing ammonium nitrate

Maurizio Alì 1 M Rakib 2 Sébastien Laborie 3 P Viers 2 G Durand 4
1 EASTCO - Sociétés Traditionnelles et Contemporaines en Océanie (EA 4241)
2 LGPM - Laboratoire de Génie des Procédés et Matériaux - EA 4038
3 LIUPPA - Laboratoire Informatique de l'Université de Pau et des Pays de l'Adour
4 R&D Microbiologie, bioMerieux SA
Abstract : Splitting of ammonium nitrate to nitric acid and ammonia was achieved by a coupled process including bipolar membrane electrodialysis and in situ ammonia stripping. The effect of homopolar ion-exchange membranes on current efficiency led to the selection of AW (Solvay) and CMB (Tokuyama Soda) membranes. The main parameters influencing the current efficiency were acid and ammonia concentrations. Proton leakage through the anion-exchange membrane is proportional to acid concentration. Ammonia diffuses through the membranes independently of the current. Higher current efficiency was obtained at higher current density. Batch and continuous processing were compared.
Keywords : ammonium nitrate bipolar membrane electrodialysis in situ stripping nitric acid ammonia
Type de document :
Article dans une revue
Journal of Membrane Science, Elsevier, 2004, 244 (1-2), pp.89-96. 〈10.1016/j.memsci.2004.07.007〉
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https://hal-centralesupelec.archives-ouvertes.fr/hal-01251065
Contributeur : Catherine Kruch <>
Soumis le : mardi 5 janvier 2016 - 15:43:27
Dernière modification le : jeudi 5 avril 2018 - 12:30:10

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LGPM | CENTRALESUPELEC | EC-PARIS | EASTCO | HTTPS-HALARCHIVES-OUVERTESFRLIUPPA

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Maurizio Alì, M Rakib, Sébastien Laborie, P Viers, G Durand. Coupling of bipolar membrane electrodialysis and ammonia stripping for direct treatment of wastewaters containing ammonium nitrate. Journal of Membrane Science, Elsevier, 2004, 244 (1-2), pp.89-96. 〈10.1016/j.memsci.2004.07.007〉. 〈hal-01251065〉

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