title: Comparison of Removal Behavior of Two Biotrickling Filters under Transient Condition and Effect of pH on the Bacterial Communities.
abstract: Although biotrickling filters (BTFs) applied under acidic condition to remove H2S from waste gases have been reported, the removal behavior of the acidic BTF under transient condition which was normal in most industry processes, and corresponding bacterial community have not been thoroughly studied. In the present study, two BTFs were run under neutral (BTFn) and acidic (BTFa) conditions, respectively. The results revealed that the removal performance of BTFa under transient condition was superior to that of BTFn; the maximum H2S eliminating capacities (ECs) achieved by BTFa and BTFn were 489.9 g/m3 h and 443.6 g/m3 h, respectively. High-throughput sequencing suggested that pH was the critical factor and several other factors including nutrient and the inlet loadings also had roles in shaping bacterial community structure. Acidithiobacillus was the most abundant bacterial group. The results indicated that BTF acclimation under acidic condition may facilitate generating microbial community with high H2S-degrading capability.
authors.affiliation: School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, PR China.|State Key Laboratory of Applied Microbiology Southern China, Guangzhou, 510070, PR China.|Guangdong Institute of Microbiology, Guangzhou, 510070, PR China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Tu
authors.affiliation: State Key Laboratory of Applied Microbiology Southern China, Guangzhou, 510070, PR China.|Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangzhou, 510070, PR China.|Guangdong Institute of Microbiology, Guangzhou, 510070, PR China.
authors.forename: Jianjun
authors.initials: J
authors.lastname: Li
authors.affiliation: School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, PR China.|Guangdong Institute of Microbiology, Guangzhou, 510070, PR China.
authors.forename: Rongfang
authors.initials: R
authors.lastname: Feng
authors.affiliation: State Key Laboratory of Applied Microbiology Southern China, Guangzhou, 510070, PR China.|Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangzhou, 510070, PR China.|Guangdong Institute of Microbiology, Guangzhou, 510070, PR China.
authors.forename: Guoping
authors.initials: G
authors.lastname: Sun
authors.affiliation: School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, PR China.|State Key Laboratory of Applied Microbiology Southern China, Guangzhou, 510070, PR China.|Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangzhou, 510070, PR China.|Guangdong Institute of Microbiology, Guangzhou, 510070, PR China.
authors.forename: Jun
authors.initials: J
authors.lastname: Guo
mesh_terms: D042763:Acidithiobacillus; D001419:Bacteria / Q000235:genetics* / Q000378:metabolism*; D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000382:microbiology; D005374:Filtration / Q000379:methods*; D005740:Gases; D059014:High-Throughput Nucleotide Sequencing; D006862:Hydrogen Sulfide / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D059013:Microbial Consortia; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D062065:Wastewater; D014871:Water Microbiology; D018508:Water Purification
chemical_list: D005740:Gases; D006862:Hydrogen Sulfide; D012336:RNA, Ribosomal, 16S; D062065:Wastewater