The effect of temperature and styrene concentration on biogas production and degradation characteristics during anaerobic removal of styrene from wastewater.
Anaerobic digestion
Biodegradation
Biogas content
Styrene
Temperature
Journal
Bioresource technology
ISSN: 1873-2976
Titre abrégé: Bioresour Technol
Pays: England
ID NLM: 9889523
Informations de publication
Date de publication:
Dec 2021
Dec 2021
Historique:
received:
13
08
2021
revised:
14
09
2021
accepted:
17
09
2021
pubmed:
3
10
2021
medline:
15
12
2021
entrez:
2
10
2021
Statut:
ppublish
Résumé
In the current study, styrene was removed anaerobically from wastewaters at temperatures of 35 ℃, 25 ℃, and 15 ℃ and concentration range of 20-150 ppm in the presence of ethanol as a co-substrate and co-solvent. Maximum styrene removal of 93% was achieved at 35 ℃. The volatilization of styrene was negligible at about 2% at all experimented temperatures. The average special methane yield (SMY) at 35 ℃ was 4.14- and 225-times higher than that of at T = 25 ℃ and T = 15 ℃, respectively, but no methane was produced in the absence of ethanol. The proteins content of the soluble microbial product (SMP) and extracellular polymeric substance (EPS) was much higher than the carbohydrate content. At styrene concentration > 80 ppm, SMY, SMP, and EPS dropped sharply. The results confirmed the well performance of anaerobic microorganisms in removing styrene from wastewater and biogas production at mesophilic condition.
Identifiants
pubmed: 34600318
pii: S0960-8524(21)01330-4
doi: 10.1016/j.biortech.2021.125988
pii:
doi:
Substances chimiques
Biofuels
0
Sewage
0
Waste Water
0
Styrene
44LJ2U959V
Methane
OP0UW79H66
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
125988Informations de copyright
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