Study on the removal characteristics and degradation pathways of highly toxic and refractory organic pollutants in real pharmaceutical factory wastewater treated by a pilot-scale integrated process.
continuous stirred tank reactor
expanded sludge bed reactor
microbial electrolysis cells
moving bed biofilm reactor
pharmaceutical wastewater
toxic pollutants
Journal
Frontiers in microbiology
ISSN: 1664-302X
Titre abrégé: Front Microbiol
Pays: Switzerland
ID NLM: 101548977
Informations de publication
Date de publication:
2023
2023
Historique:
received:
20
12
2022
accepted:
21
02
2023
entrez:
27
3
2023
pubmed:
28
3
2023
medline:
28
3
2023
Statut:
epublish
Résumé
Pharmaceutical wastewater frequently contains high levels of toxic pollutants. If they are discharged untreated, they pose a threat to the environment. The traditional activated sludge process and the advanced oxidation process do not sufficiently remove toxic and conventional pollutants from pharmaceutical wastewater treatment plants (PWWTPs). We designed a pilot-scale reaction system to reduce toxic organic pollutants and conventional pollutants from pharmaceutical wastewater during the biochemical reaction stage. This system included a continuous stirred tank reactor (CSTR), microbial electrolysis cells (MECs), an expanded sludge bed reactor (EGSB), and a moving bed biofilm reactor (MBBR). We used this system to further investigate the benzothiazole degradation pathway. The system effectively degraded the toxic pollutants (benzothiazole, pyridine, indole, and quinoline) and the conventional chemicals (COD, NH This study provides feasible design alternatives for PWWTPs to remove both toxic and conventional pollutants at the same time.
Identifiants
pubmed: 36970662
doi: 10.3389/fmicb.2023.1128233
pmc: PMC10034018
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1128233Informations de copyright
Copyright © 2023 Dai, Pang, Ding, Wang, Zhang, Ren and Yang.
Déclaration de conflit d'intérêts
J-WP was employed by China Energy Conservation and Environmental Protection Group, CECEP Talroad Technology Co., Ltd. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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