Modeling the performance of an anaerobic baffled reactor with the variation of hydraulic retention time

Jianzheng Li, En Shi, Philip Antwi, Shao Yuan Leu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

14 Citations (Scopus)


Anaerobic baffled reactors (ABRs) have been widely used in engineering but very few models have been developed to simulate its performance. Based on the integration of biomass retention and liquid-gas mass transfer of biogas into the biochemical process derived in the International Water Association (IWA) Anaerobic Digestion Model No.1 (ADM1), a mathematical model was developed to predict volatile fatty acids (VFAs), chemical oxygen demand (CODCr) and biogas in a 4-compartment ABR operated with variable hydraulic retention time (HRT). The model was calibrated and validated with the experimental data obtained from the reactor when the HRT decreased from 2.0 to 1.0 d by stages. It was found that the predicted VFAs, CODCrand biogas agreed well with the experimental data. Consequently, the developed model was a reliable tool to enhance the understanding among the mechanisms of the anaerobic digestion in ABRs, as well as to reactor's designing and operation.
Original languageEnglish
Pages (from-to)477-486
Number of pages10
JournalBioresource Technology
Publication statusPublished - 1 Aug 2016


  • ADM1
  • Anaerobic baffled reactor (ABR)
  • Biomass retention
  • Liquid-gas transfer
  • Mathematical model

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

Cite this