title: Synergism effects of phenol-degrading yeast and ammonia-oxidizing bacteria for nitrification in coke wastewater of Esfahan Steel Company.
abstract: 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 approximately 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.
authors.affiliation: Department of Biology, Faculty of Science, Isfahan University, Isfahan, Iran. ghanavatih@yahoo.com
authors.forename: Hossein
authors.initials: H
authors.lastname: Ghanavati
authors.forename: Giti
authors.initials: G
authors.lastname: Emtiazi
authors.forename: Mehdi
authors.initials: M
authors.lastname: Hassanshahian
mesh_terms: D000641:Ammonia / Q000302:isolation & purification / Q000378:metabolism*; D001419:Bacteria / Q000378:metabolism*; D003077:Coke; D009573:Nitrites / Q000378:metabolism; D010084:Oxidation-Reduction; D010636:Phenols / Q000378:metabolism*; D014871:Water Microbiology; D014874:Water Pollutants, Chemical / Q000378:metabolism*; D015003:Yeasts / Q000378:metabolism*
chemical_list: D003077:Coke; D009573:Nitrites; D010636:Phenols; D014874:Water Pollutants, Chemical; D000641:Ammonia