Comparison of RBC and SBR systems for the treatment of sewage from small communities

Joseph C. Akunna, W. Shepherd

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


This paper describes a study which was carried out to evaluate the performance of two types of small sewage-treatment plant which are commonly available in the UK, i.e. a rotating biological contactor and a sequencing batch reactor. Both systems produced an effluent quality of less than 20 mg/l BOD and 30 mg/l SS; however, the sequencing batch reactor was more consistent in producing a better effluent (i.e. BOD<10 mg/l and SS<20 mg/l) than the rotating biological contactor. The sequencing batch reactor also demonstrated a greater tendency to remove nutrients, although the special design features which were used in this study were believed to have enhanced the rate of nutrient removal.
Original languageEnglish
Pages (from-to)147-151
Number of pages5
JournalWater and Environment Journal
Issue number2
Publication statusPublished - May 2001


  • Hydraulic surge
  • Organic shockload
  • Rotating biological contactor
  • Sequencing batch reactor


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