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Biodegradation of toluene by an attached biofilm in a rotating biological contactor

Alemzadeh, I ; Sharif University of Technology | 2001

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  1. Type of Document: Article
  2. DOI: 10.1016/S0032-9592(00)00232-6
  3. Publisher: 2001
  4. Abstract:
  5. A laboratory scale study using a modified rotating biological contactor (RBC) was constructed to assess aerobic treatment of toluene, a typical aromatic hydrocarbon. The RBC consisted of 72 parallel discs rotating in a reservoir and was arranged in three stages, i.e. 24 discs oriented in each stage. An artificial wastewater containing toluene was fed to the RBC, inoculated with an enriched culture from petrochemical sewage. The rotation of the discs and the recycling time ensured good mixing of the bulk liquid and resulted in a regular biofilm thickness. Toluene removal was measured by COD measurement and GC. The effect of initial toluene concentration on toluene biodegradation showed a zero order mechanism. Adaptation of the biofilm to toluene results in higher COD removal at different stages. © 2001 Elsevier Science Ltd
  6. Keywords:
  7. Biodegradation ; Biofilm ; Biomass ; RBC
  8. Source: Process Biochemistry ; Volume 36, Issue 8-9 , 2001 , Pages 707-711 ; 13595113 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0032959200002326