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Assessing the performance of a sequencing batch biofilm reactor bioaugmented with P. stutzeri strain XL-2 treating ammonium-rich wastewater
- Source :
- Bioresource Technology. 270:70-79
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- Pseudomonas stutzeri XL-2, with the capability of heterotrophic nitrification-aerobic denitrification and biofilm-forming, was applied in a sequencing batch biofilm reactor (SBBR) for bioaugmented treatment of ammonium-rich wastewater. The bioaugmented system SBBR 1 showed a rapid development of biofilm and relatively shorter time for biofilm hanging compared with the control system SBBR 2 without strain XL-2 inoculation. At different NH4+-N loads of 100, 200 and 300 mg/L, the effluent TN removal ratios ranged in 88.7–97.0%, 85.1–93.5% and 87.8–92.5% respectively in SBBR 1, while only ranged in 77.4–85.4%, 77.1–84.3% and 79.8–85.0% in SBBR 2. Less accumulation of NO2−-N and NO3−-N resulted in the better performance on TN removal in SBBR 1. Microbial community structure analysis revealed that strain XL-2 successfully proliferated in SBBR 1 and contributed to the less accumulation of NO2−-N and NO3−-N as well as biofilm formation.
- Subjects :
- Environmental Engineering
Denitrification
Nitrogen
0208 environmental biotechnology
Heterotroph
Bioengineering
02 engineering and technology
Wastewater
010501 environmental sciences
Waste Disposal, Fluid
01 natural sciences
chemistry.chemical_compound
Ammonium Compounds
Ammonium
Food science
Waste Management and Disposal
Effluent
0105 earth and related environmental sciences
Pseudomonas stutzeri
biology
Renewable Energy, Sustainability and the Environment
Biofilm
General Medicine
biology.organism_classification
Nitrification
020801 environmental engineering
Microbial population biology
chemistry
Biofilms
Subjects
Details
- ISSN :
- 09608524
- Volume :
- 270
- Database :
- OpenAIRE
- Journal :
- Bioresource Technology
- Accession number :
- edsair.doi.dedup.....0fa75548215f75595374b13233c1e62f