Ammonia-oxidizing bacteria and phenol-degrading yeast were isolated in order to study the synergism effects of phenol-degrading
yeast and ammonia-oxidizing bacteria for enhancing the nitrification in coke wastewater from the Isfahan Steel Company.
The influent and effluent samples with ∼ 600–1200 mg L–1 ammonium and 550–2350 mg L–1 phenol were collected aseptically
in sterile flasks. The biodegradation of phenol and nitrification were studied with different treatments. The results showed that
addition of Na2CO3 and autotrophic bacteria to wastewater increased the ammonium removal by 100%. Furthermore, the synergism
effects of phenol-degrader yeast and autotrophic bacteria reduced the time for ammonium removal.
کلید واژگان :
Nitrification, ammonia-oxidizing bacteria, phenol-degrader yeast, coke wastewater, simultaneous removal of ammonia and phenol,
