Integration of liquid-liquid membrane contactors and electrodialysis for ammonium recovery and concentration as a liquid fertilizer.
Ammonia valorisation
Ammonium salts
ED
LLMC
Nutrient recovery
Journal
Chemosphere
ISSN: 1879-1298
Titre abrégé: Chemosphere
Pays: England
ID NLM: 0320657
Informations de publication
Date de publication:
Apr 2020
Apr 2020
Historique:
received:
30
07
2019
revised:
03
12
2019
accepted:
07
12
2019
pubmed:
20
12
2019
medline:
17
4
2020
entrez:
20
12
2019
Statut:
ppublish
Résumé
The accumulation of ammonia in water bodies can cause eutrophication and reduce water quality. Furthermore, 80% of the ammonia in the world is consumed as fertilizer, which makes it a resource that can be recovered under the circular economy concept. Then, ammonia from wastewater can be valorised for agricultural applications. Liquid-liquid membrane contactors (LLMCs) have been postulated as a novel and eco-friendly technology for ammonia recovery, because they can convert dissolved ammonia into ammonium salts by an acid stripping solution. The concentration of the ammonium salt produced is limited by the co-transport of water in LLMC. Further concentration by electrodialysis (ED) is presented as a solution to overcome this problem. In this work, ammonia streams with different initial ammonia concentrations (1.7-4.0 g/L) were treated by LLMCs to produce liquid ammonium salt fertilizers (as NH
Identifiants
pubmed: 31855756
pii: S0045-6535(19)32846-2
doi: 10.1016/j.chemosphere.2019.125606
pii:
doi:
Substances chimiques
Ammonium Compounds
0
Fertilizers
0
Membranes, Artificial
0
Waste Water
0
Ammonia
7664-41-7
Nitrogen
N762921K75
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
125606Informations de copyright
Copyright © 2019 Elsevier Ltd. All rights reserved.