Skip to main content
Log in

Insights into modified sequencing batch reactor for the treatment of sugarcane vinasse: role of recirculation process

  • Original Paper
  • Published:
International Journal of Environmental Science and Technology Aims and scope Submit manuscript

Abstract

The application of the recirculation process in the biological wastewater treatment process was considered as an effective approach in promoting biomass retention and mixing intensity, enhancing the performance of treating wastewater. In this study, a recirculated sequencing batch reactor (R-SBR) was developed in the treatment of anaerobically digested vinasse. The comparative study of the conventional sequencing batch reactor (without recirculation process) and R-SBR was determined through the treatment performances and kinetic studies. The chemical oxygen demand and ammonium reduction of R-SBR (52.5 ± 8.0% and 31.7 ± 7.9%) were higher than the conventional sequencing batch reactor (31.8 ± 4.3% and 17.3 ± 5.3%) at the feed flow rate of 1.0 L/day. This result revealed that the enhancement of the mass transfer between activated sludge and substrate could improve the biodegradation of the R-SBR. Moreover, the effect of feed flow rate as a significant factor to achieve effective biodegradation was determined in the R-SBR system. The maximum chemical oxygen demand reduction (63.0%) and ammonium reduction (41.3%) of R-SBR were achieved at the lowest feed flow rate (1.0 L/day) from 1.0 to 5.0 L/day. The chemical oxygen demand reduction of R-SBR could be explained by using pseudo-first-order kinetics with rate constant (k1) (0.0356 day−1). The kinetic study revealed that the R-SBR achieved the most effective performance at the lowest feed flow rate. Thus, the recirculation process as a feasible process improved the treatment performance in the R-SBR system at low feed flow rate.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5

Similar content being viewed by others

References

Download references

Acknowledgements

The authors would like to thank the Faculty of Civil Engineering Technology Universiti Malaysia Perlis (UniMAP), Fermpro Industries, and Malpom Industries, for their support in providing the necessary facilities and resources to carry out this work.

Author information

Authors and Affiliations

Authors

Contributions

WCK: contributed to conceptualization; methodology; and writing—original draft preparation; WCK and AC: were involved in formal analysis and investigation; YSW: contributed to writing—review and editing; YSW, SAO, STS, and HHN: provided resources; and YSW, SAO, and NAL: were involved in supervision.

Corresponding author

Correspondence to Y.-S. Wong.

Ethics declarations

Conflict of interest

The authors have no conflicts of interest to declare that are relevant to the content of this article.

Additional information

Editorial responsibility: Parveen Fatemeh Rupani.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Kee, WC., Wong, YS., Ong, SA. et al. Insights into modified sequencing batch reactor for the treatment of sugarcane vinasse: role of recirculation process. Int. J. Environ. Sci. Technol. 19, 12289–12302 (2022). https://doi.org/10.1007/s13762-022-03946-x

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s13762-022-03946-x

Keywords

Navigation