Kinetics investigation of phenolic pollutant degradation via Serratia marcescens ABHI 001 and its application in wastewater treatment

Tripti Singh, Neha Srivastava, Addisu Demeke Teklemariam, P K Mishra, Mohammed Saad Almuhayawi, Shafiul Haque, Steve Harakeh, Dan Bahadur Pal*, Vijai Kumar Gupta*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

In the present work, kinetic study has been conducted in order to effectively eliminate the p-cresol from wastewater employing isolated bacterial strain Serratia marcescens ABHI001 under batch shake flasks in the concentration varying from 50 to 500 mg/L. Further, effects of various parameters including p-cresol concentration, inoculum dosage, temperature, pH and agitation have been investigated. It was found that 10% v/v inoculum of 24 h age, was effective in degrading p-cresol. Beside this, it was noticed that the concentration of P-cresol above 100 mg/L exhibited an inhibitory effect. The maximum specific growth rate (μmax) was obtained to be 0.360 h-1 for 100 mgL-1 concentration. Further, the experimental results were well fitted with Halden's and Andrew's models and kinetic parameters μmax, KS and Ki in case of Haldane model were calculated to be 0.9697 h-1, 88.07 mgL-1 and 219.9 mgL-1, respectively whereas the corresponding values in case of Andrews's constants were 0.6917 h-1, 62.83 mgL-1 and 307.4 mgL-1, respectively. The yield coefficient for the growth on p-cresol was found to be 0.82.

Original languageEnglish
Article number136532
JournalChemosphere
Volume309
Issue numberPart1
Early online date21 Sep 2022
DOIs
Publication statusPrint publication - Dec 2022

Bibliographical note

Copyright © 2022. Published by Elsevier Ltd.

Keywords

  • Biodegradation
  • Halden model
  • Kinetic parameters
  • S. marcescens
  • Substrate inhibition
  • p-cresol

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