Chronic impact of sulfamethoxazole: how does process kinetics relate to metabolic activity and composition of enriched nitrifying microbial culture?


Katipoglu-Yazan T., Ubay-Cokgor E. , Orhon D.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, cilt.93, sa.6, ss.1722-1732, 2018 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 93 Konu: 6
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1002/jctb.5545
  • Dergi Adı: JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
  • Sayfa Sayıları: ss.1722-1732

Özet

BACKGROUND: This study investigated utilization kinetics of ammonia-nitrogen induced by chronic sulfamethoxazole (SMX) exposure on biomass with an enriched nitrifying community. A lab-scale activated sludge system was supplied with 100 mg COD L-1 of peptone mixture and 50 mg N L-1 of ammonia nitrogen at a SRT of 15 days. At steady-state, the reactor was operated with additional daily SMX dosing of 50 mg L-1 for 35 days. Profiles of oxygen uptake rates and nitrogen fractions obtained in respirometric/batch experiments were used for estimation of nitrification kinetics.