Overcoming hydrogen loss in single-chamber microbial electrolysis cells by urine amendment.
H(2)-reoxidation
Hydrogen loss
Methanogenesis
Microbial electrolysis cell
Source separated urine
TAN
Journal
Water research
ISSN: 1879-2448
Titre abrégé: Water Res
Pays: England
ID NLM: 0105072
Informations de publication
Date de publication:
01 Dec 2023
01 Dec 2023
Historique:
received:
05
08
2023
revised:
14
10
2023
accepted:
17
10
2023
medline:
27
11
2023
pubmed:
3
11
2023
entrez:
2
11
2023
Statut:
ppublish
Résumé
The effective hydrogen production in single-chamber microbial electrolysis cells (MECs) has been seriously challenged by various hydrogen consumers resulting in substantial hydrogen loss. In previous studies, the total ammonia nitrogen (TAN) has been used to inhibit certain hydrogen-consuming microorganisms to enhance hydrogen production in fermentation. In this study, we explored the feasibility of using source-separated urine to overcome hydrogen loss in the MEC, with the primary component responsible being TAN generated via urea hydrolysis. Experimental results revealed that the optimal TAN concentration ranged from 1.17 g N/L to 1.75 g N/L. Within this range, the hydrogen production rate substantially improved from less than 100 L/(m
Identifiants
pubmed: 37918197
pii: S0043-1354(23)01195-8
doi: 10.1016/j.watres.2023.120755
pii:
doi:
Substances chimiques
Hydrogen
7YNJ3PO35Z
Wastewater
0
Ammonia
7664-41-7
Urea
8W8T17847W
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
120755Informations de copyright
Copyright © 2023. Published by Elsevier Ltd.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.