Acute impact of erythromycin on substrate utilization by activated sludge: effect of sludge age

Pala-Ozkok I., UBAY-COKGOR E., Çakar Z. P. , ORHON D.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, vol.89, no.7, pp.1091-1102, 2014 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 89 Issue: 7
  • Publication Date: 2014
  • Doi Number: 10.1002/jctb.4208
  • Journal Name: JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.1091-1102
  • Keywords: activated sludge, degradation, kinetics, modelling, pharmaceuticals, WASTE-WATER TREATMENT, RESPIROMETRIC EVALUATION, BIODEGRADATION KINETICS, PEPTONE BIODEGRADATION, MICROBIAL CULTURE, COD FRACTIONATION, ANTIBIOTICS, METABOLISM, GROWTH, MAINTENANCE

Abstract

BACKGROUND: This study involved model evaluation of the acute impact of erythromycin on substrate utilization of aerobic activated sludge biomass, at sludge ages of 10 and 2 days. Acute inhibition experiments involved two fill/draw reactors, supplying the biomass, and two sets of batch reactors, which were all fed with the same peptone-meat extract mixture. Each set included a control reactor started without antibiotic addition and parallel reactors with pulse erythromycin additions.