Characterization of microbial community structure of anaerobic baffled reactor-integrated oxidation ditch-biological aerated filter for landfill leachate treatment

2011 ◽  
Author(s):  
Yudong Xu ◽  
Xiaofang Chen
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Microbial Community Structure ◽  
Landfill Leachate ◽  
Biological Aerated Filter ◽  
Oxidation Ditch ◽  
Leachate Treatment ◽  
Anaerobic Baffled Reactor ◽  
Aerated Filter

scholarly journals Effect of Aeration Rates and Filter Media Heights on the Performance of Pollutant Removal in an Up-Flow Biological Aerated Filter

Water ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1244 ◽  
Author(s):  
Jiehui Ren ◽  
Wen Cheng ◽  
Tian Wan ◽  
Min Wang ◽  
Chengcheng Zhang
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Relative Abundance ◽  
Microbial Community Structure ◽  
Municipal Wastewater ◽  
Biological Aerated Filter ◽  
Filter Media ◽  
N Removal ◽  
Pollutants Removal ◽  
Aerated Filter

The biological aerated filter (BAF) is an effective biological treatment technology which removes the pollutants in municipal wastewater secondary treatment. However, we still know little about the interaction between the pollutants removal and microbes within the BAF. In this study, we used an up-flow BAF (UBAF) reactor to investigate the relationships between the pollutants removal and microbial community structure at different aeration rates and filter media heights. The microbial community of biofilm was analyzed by Illumina pyrosequencing. Our results showed that the UBAF achieved a better removal efficiency of chemical oxygen demand (COD), NH4+-N, NO3−-N, and total phosphorus (TP) at an aeration rate of 65 L/h. In addition, the COD and NH4+-N removal mainly occurred at 0–25 cm height of filter media. The microbial community structure in the UBAF demonstrated that the relative abundance of the Planctomycetes and Comamonadaceae at 10 cm height of filter media were 11% and 48.1%, respectively, proportions significantly higher than those under others treatments. Finally, the changes in relative abundance of Proteobacteria, Planctomycetes, and Nitrospirae likely explained the mechanism of nitrogen and phosphorus removal. Our results showed that suitable conditions could enhance the microbial community structure to achieve a high pollutants removal in the UBAF.

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