A novel autotrophic denitrification and nitrification integrated constructed wetland process for marine aquaculture wastewater treatment.
Metagenome
Nitrogen metabolism
Rhizosphere effect
Sulfate reduction
Sulfide-driven autotrophic denitrification
Journal
Chemosphere
ISSN: 1879-1298
Titre abrégé: Chemosphere
Pays: England
ID NLM: 0320657
Informations de publication
Date de publication:
Apr 2023
Apr 2023
Historique:
received:
02
12
2022
revised:
29
01
2023
accepted:
13
02
2023
pubmed:
17
2
2023
medline:
4
3
2023
entrez:
16
2
2023
Statut:
ppublish
Résumé
We undertook a lab-scale evaluation of a novel autotrophic denitrification and nitrification integrated constructed wetland (ADNI-CW) for improved carbon (C), nitrogen (N), and sulfur (S) cycling to treat mariculture wastewater. The process involved an up-flow autotrophic denitrification constructed wetland unit (AD-CW) for sulfate reduction and autotrophic denitrification, and an autotrophic nitrification constructed wetland unit (AN-CW) for nitrification. The 400-day experiment investigated the performance of the AD-CW, AN-CW, and entire ADNI-CW processes under various hydraulic retention times (HRTs), nitrate concentrations, dissolved oxygen levels, and recirculation ratios. Under various HRTs, the AN-CW achieved a nitrification performance exceeding 92%. Correlation analysis of the chemical oxygen demand (COD) revealed that, on average, approximately 96% of COD was removed by sulfate reduction. Under different HRTs, increases in influent NO
Identifiants
pubmed: 36796520
pii: S0045-6535(23)00424-1
doi: 10.1016/j.chemosphere.2023.138157
pii:
doi:
Substances chimiques
Nitrogen
N762921K75
Sulfates
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
138157Informations de copyright
Copyright © 2023 Elsevier Ltd. All rights reserved.
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.