title: Dynamics of microbial community for X-3B wastewater decolorization coping with high-salt and metal ions conditions.
abstract: In this study, decolorization of Reactive Brilliant Red X-3B wastewater by the biological process coping with high salinity and metal ions conditions was investigated, and 16S rDNA based fingerprint technique was used to investigate microbial population dynamics. Results of sequencing batch tests showed that the microbial community could keep efficient with high concentration of dye (1100 mg L(-1)), salt (150 g L(-1) NaCl) and some metal ions such as Mg(2+), Ca(2+) (1-10 mmol L(-1)) and Pb(2+) (1 mmol L(-1)). 16S rDNA-based molecular analysis techniques demonstrated that the microbial community shifted during the acclimatization process affected by salt or metal ions. Some stains similar to Bacillus, Sedimentibacter, Pseudomonas, Clostridiales, Streptomyces and some uncultured clones acted for the dynamic succession, supposed as potential decolorization bacteria. This study provided insights on the decolorization capability and the population dynamic shifts during decolorization process of azo dye wastewater coping with salt and metal ions.
authors.affiliation: Key Laboratory of Industrial Ecology and Environmental Engineering, MOE, School of Environmental and Biological Science and Technology, Dalian University of Technology, Dalian 116024, PR China.
authors.forename: Liang
authors.initials: L
authors.lastname: Tan
authors.forename: Yuanyuan
authors.initials: Y
authors.lastname: Qu
authors.forename: Jiti
authors.initials: J
authors.lastname: Zhou
authors.forename: Fang
authors.initials: F
authors.lastname: Ma
authors.forename: Ang
authors.initials: A
authors.lastname: Li
mesh_terms: D000222:Adaptation, Physiological / Q000502:physiology; D001391:Azo Compounds / Q000302:isolation & purification / Q000378:metabolism*; D001419:Bacteria / Q000378:metabolism*; D019149:Bioreactors / Q000382:microbiology*; D003116:Color; D007477:Ions; D008670:Metals / Q000737:chemistry*; D009282:Naphthalenesulfonates / Q000302:isolation & purification / Q000378:metabolism*; D012965:Sodium Chloride / Q000737:chemistry*; D013045:Species Specificity; D014871:Water Microbiology; D014874:Water Pollutants, Chemical / Q000302:isolation & purification / Q000378:metabolism*; D018508:Water Purification / Q000379:methods
chemical_list: D001391:Azo Compounds; D007477:Ions; D008670:Metals; D009282:Naphthalenesulfonates; C520101:Reactive brilliant red X-3B; D014874:Water Pollutants, Chemical; D012965:Sodium Chloride