Kinetics of COD removal from a synthetic wastewater in a continuous biological fluidized bed

✍ Scribed by F. Kargi; I. Karapinar

• Publisher: Springer
• Year: 1995
• Tongue: English
• Weight: 467 KB
• Volume: 13
• Category: Article
• ISSN: 1615-7605
• DOI: 10.1007/bf00417638

✦ Synopsis

Kinetics of biological removal of COD from a synthetic wastewater in a continuous fluidized bed containing sponge particles with wire mesh was investigated. Synthetic wastewater consisted of diluted molasses, urea, KH2PO 4 and MgSO4 resulting in COD/N/P = 100/8/1. Fluidized bed contained sponge particles surrounded by stainless steel wires as support particles for organisms. A culture of Zooglea ramigera was used as the dominant organisms in mixed culture media throughout the experiments.

The system was operated continuously with different hydraulic residence times, and COD loading rates and the variation of effluent COD concentration with those parameters was investigated. Kinetic constants of the system were determined by using the continuous experimental data. System has been operated under COD limitation and DO limitations were overcome by vigirous aeration. Kinetic constants determined in this system were in good agreement with literature values with a possible inhibition effect on Ks term.