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Application of anaerobic dynamic membrane bioreactor (AnDMBR) for the successful enrichment of Anammox bacteria using mixed anaerobic and aerobic seed sludge
- Source :
- Bioresource Technology. 266:532-540
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- This study investigated a novel bioreactor configuration coupled with a side-stream dynamic membrane (DM) for Anammox enrichment as an alternative for conventional membrane. Bioreactor was fed with synthetic feed and seeded with a mix of anaerobic and aerobic sludge. In situ mechanical cleaning was employed for DM cleaning. DM development and performance was analysed over two polyamide-nylon meshes (200 and 52 µm). Solid-liquid separation of 52 µm mesh outperformed 200 µm with an average effluent turbidity of 2.4 ± 0.1 NTU. The system was operated at a maximum nitrogen loading rate of 696 mg-N L−1 d−1 and achieved a maximum nitrogen removal rate of 611.6 mg-N L−1 d−1. At steady state, the average ammonium, nitrite and total nitrogen removal efficiencies were 87 ± 0.6%, 98.5 ± 0.15% and 87.5 ± 0.56% respectively. Digital realtime PCR Sequence analysis showed that Planctomycetales belonging to ascertained Anammox-specific genera progressively increased their presence in the reactor consistently with its nitrogen removal performance. © 2018 Elsevier Ltd
- Subjects :
- Environmental Engineering
Denitrification
Nitrogen
0208 environmental biotechnology
chemistry.chemical_element
Bioengineering
02 engineering and technology
010501 environmental sciences
Dynamic membrane
Membrane bioreactor
Anammox
Mesh filtration
PCR sequence analysis
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal
01 natural sciences
Bacteria, Anaerobic
chemistry.chemical_compound
Bioreactors
Bioreactor
Ammonium
Renewable Energy
Anaerobiosis
PCR sequence analysi
Effluent
Nitrites
0105 earth and related environmental sciences
Sustainability and the Environment
Bacteria
Sewage
General Medicine
Pulp and paper industry
020801 environmental engineering
chemistry
Oxidation-Reduction
Anaerobic exercise
Subjects
Details
- ISSN :
- 09608524
- Volume :
- 266
- Database :
- OpenAIRE
- Journal :
- Bioresource Technology
- Accession number :
- edsair.doi.dedup.....5340bff760610874db92b8ffc62dda7e