title: An adsorption-release-biodegradation system for simultaneous biodegradation of phenol and ammonium in phenol-rich wastewater.
abstract: The feasibility of simultaneous biodegradation of phenol and ammonium in phenol-rich wastewater was evaluated in a reusable system, which contained macroporous adsorption resin and Alcaligenes faecalis strain WY-01. In the system, up to 6000mg/L phenol could be completely degraded by WY-01; meanwhile, 99.03±3.95% of ammonium was removed from the initial concentration of 384mg/L. This is the first study to show the capability of single strain in simultaneous removal of ammonium and phenol in wastewater containing such high concentrations of phenol. Moreover, the resin was regenerated during the biodegradation process without any additional manipulations, indicating the system was reusable. Furthermore, enzyme assay, gene expression patterns, HPLC-MS and gas chromatography analysis confirmed that phenol biodegradation accompanied with aerobic nitrifier denitrification process. Results imply that the reusable system provides a novel strategy for more efficient biodegradation of phenol and ammonium contained in some particular industrial wastewater.
authors.affiliation: Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
authors.forename: Hu
authors.initials: H
authors.lastname: Chen
authors.affiliation: College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
authors.forename: Yu-Xiang
authors.initials: YX
authors.lastname: Liu
authors.affiliation: Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
authors.forename: Rui-Peng
authors.initials: RP
authors.lastname: Ren
authors.affiliation: Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China. Electronic address: lykang@tyut.edu.cn.
authors.forename: Yong-Kang
authors.initials: YK
authors.lastname: Lv
mesh_terms: D000327:Adsorption; D000332:Aerobiosis; D042481:Alcaligenes faecalis / Q000235:genetics / Q000378:metabolism; D064751:Ammonium Compounds / Q000378:metabolism*; D001673:Biodegradation, Environmental; D015964:Gene Expression Regulation, Bacterial; D006863:Hydrogen-Ion Concentration; D009584:Nitrogen / Q000032:analysis; D019800:Phenol / Q000378:metabolism*; D016062:Porosity; D012117:Resins, Synthetic / Q000737:chemistry; D013696:Temperature; D062065:Wastewater / Q000737:chemistry*
chemical_list: D064751:Ammonium Compounds; D009584:Nitrogen; D019800:Phenol; D012117:Resins, Synthetic; D062065:Wastewater
keywords: Alcaligenes faecalis; Ammonium; Biodegradation; CAD-40 resin; Phenol