Effect of sludge recycle on performance of a rotating biodisc contactor treating saline wastewater

Kargi F., Dincer A.

BIOPROCESS ENGINEERING, vol.18, no.3, pp.235-239, 1998 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 18 Issue: 3
  • Publication Date: 1998
  • Doi Number: 10.1007/s004490050436
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.235-239
  • Dokuz Eylül University Affiliated: No


A rotating biodisc contactor (RBC) was used for biological treatment of synthetic saline wastewater with and without sludge (cell) recycle. Synthetic wastewater composed of diluted molasses, urea, KHzPO4, MgSO4 and 3% salt (NaCl) was fed to the RBC unit with different flow rates. Underflow from a sedimentation tank placed at the end of RBC unit was recycled to the RBC unit with a constant flow rate. COD removal rates and efficiencies were determined for the cases of with and without sludge recycle and compared.