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Startup and long term operation of enhanced biological phosphorus removal in continuous-flow reactor with granules
- Source :
- Bioresource Technology. 212:92-99
- Publication Year :
- 2016
- Publisher :
- Elsevier BV, 2016.
-
Abstract
- The startup and long term operation of enhanced biological phosphorus removal (EBPR) in a continuous-flow reactor (CFR) with granules were investigated in this study. Through reducing the settling time from 9min to 3min gradually, the startup of EBPR in a CFR with granules was successfully realized in 16days. Under continuous-flow operation, the granules with good phosphorus and COD removal performance were stably operated for more than 6months. And the granules were characterized with particle size of around 960μm, loose structure and good settling ability. During the startup phase, polysaccharides (PS) was secreted excessively by microorganisms to resist the influence from the variation of operational mode. Results of relative quantitative PCR indicated that granules dominated by polyphosphate-accumulating organisms (PAOs) were easier accumulated in the CFR because more excellent settling ability was needed in the system.
- Subjects :
- Time Factors
Environmental Engineering
Settling time
0208 environmental biotechnology
chemistry.chemical_element
Bioengineering
02 engineering and technology
010501 environmental sciences
Polymerase Chain Reaction
01 natural sciences
Biopolymers
Bioreactors
Settling
Polyphosphates
Polysaccharides
Bioreactor
Particle Size
Waste Management and Disposal
Environmental Restoration and Remediation
0105 earth and related environmental sciences
Biological Oxygen Demand Analysis
Sewage
Waste management
Renewable Energy, Sustainability and the Environment
Continuous flow
Chemistry
Phosphorus
Proteins
General Medicine
Pulp and paper industry
020801 environmental engineering
Biodegradation, Environmental
Enhanced biological phosphorus removal
Particle size
Rheology
Subjects
Details
- ISSN :
- 09608524
- Volume :
- 212
- Database :
- OpenAIRE
- Journal :
- Bioresource Technology
- Accession number :
- edsair.doi.dedup.....c3f0f02f4668521721f9ac4a55c6dd3a