Rendiconti Lincei

, Volume 28, Issue 3, pp 497–501 | Cite as

Comparative study on the biodegradation of mixed remazol dyes wastewater between integrated anaerobic/aerobic and aerobic sequencing batch reactors

  • Soon-An Ong
  • Li-Ngee Ho
  • Yee-Shian Wong
  • Khairil Anuar Mohammad Pakri


Complete mineralization of dye effluent was realized through sequential anaerobic followed by aerobic processes. The aim of this study was to evaluate and compare the degradation of wastewater of four remazol dyes with integrated anaerobic/aerobic (SBR1) and aerobic (SBR2) processes under sequencing batch reactor operation. The ORP profiles show that the SBR1 was in anaerobic condition during the 15 h React mode and turned to aerobic condition through air aeration for 3 h. The SBR1 and SBR2 achieved almost similar performance in the removal of organic compounds with average 95% COD removal. The SBR1 performed better in the color removal with 93% removal efficiency while the SBR2 only attained 50% removal efficiency. The biodegradation rate of the remazol dyes was well described by the first-order kinetic model with the sequence degradation rate remazol pink > remazol violet > remazil yellow > remazol green.


Remazol dye Integrated anaerobic/aerobic Kinetic study Sequencing batch reactor Oxidation reduction potential 


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Copyright information

© Accademia Nazionale dei Lincei 2017

Authors and Affiliations

  • Soon-An Ong
    • 1
  • Li-Ngee Ho
    • 2
  • Yee-Shian Wong
    • 1
  • Khairil Anuar Mohammad Pakri
    • 1
  1. 1.Water Research Group (WAREG), School of Environmental EngineeringUniversity Malaysia PerlisArauMalaysia
  2. 2.School of Material EngineeringUniversity Malaysia PerlisArauMalaysia

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