Phenol and p-nitrophenol biodegradations by acclimated activated sludge: Influence of operational conditions on biodegradation kinetics and responding microbial communities

Phenol and p-nitrophenol biodegradations by acclimated activated sludge: Influence of operational conditions on biodegradation kinetics and responding microbial communities

This study aims to evaluate the influence of operational factors (i.e. substrate concentration, activated sludge concentration and acclimation concentration) and the microbial communities of activated sludge on the aerobic biodegradation of phenol and p-nitrophenol (PNP). During the biodegradation p...

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Veröffentlicht in:Journal of environmental chemical engineering 2021-08, Vol.9 (4), p.105420, Article 105420
Hauptverfasser: Sam, Suat Peng, Tan, Hua Tiang, Sudesh, Kumar, Adnan, Rohana, Ting, Adeline Su Yien, Ng, Si Ling
Format: Artikel
Sprache:eng
Schlagworte:
Acclimation
Aerobic biodegradation
Haldane
Phenol
Sequencing batch reactor (SBR)
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Zusammenfassung:This study aims to evaluate the influence of operational factors (i.e. substrate concentration, activated sludge concentration and acclimation concentration) and the microbial communities of activated sludge on the aerobic biodegradation of phenol and p-nitrophenol (PNP). During the biodegradation process, the phenol or PNP biodegradation and activated sludge growth kinetics were determined and the interaction effects of the operational factors on the kinetics were assessed. The phenol biodegradation kinetics was well described by zero-order model (R2 > 0.813). At low phenol concentration (
ISSN:2213-3437
2213-3437
DOI:10.1016/j.jece.2021.105420