Effect of wastewater composition on treatment performance of a column bioreactor with recycle


KARAPINAR İ., Kargi F.

BIOPROCESS ENGINEERING, vol.14, no.5, pp.245-248, 1996 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 14 Issue: 5
  • Publication Date: 1996
  • Doi Number: 10.1007/bf00369920
  • Journal Name: BIOPROCESS ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.245-248
  • Dokuz Eylül University Affiliated: Yes

Abstract

Effect of synthetic wastewater composition on COD removal performance of a continuous column bioreactor with recycle was studied. Zooglea ramigera was used as dominant microbial culture throughout the experiments. Synthetic wastewater was composed of diluted molasses, urea, KH2PO4 and MgSO4. Wastewater composition was changed by adjusting influent COD/N/P ratio between 100/7/1-100/15/1. System was operated with nitrogen and COD limitations and COD removal performances were compared. Both nitrogen and COD removal efficiencies and rates were calculated and optimum feed COD/N ratio was determined to be between 100/8-100/10.