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Innovative treatment system for digester liquor using anammox process
- Source :
- Bioresource Technology. 100:5437-5443
- Publication Year :
- 2009
- Publisher :
- Elsevier BV, 2009.
-
Abstract
- This study demonstrated that partial nitritation using nitrifying activated sludge entrapped in a polyethylene glycol (PEG) gel carrier, as a pretreatment to anammox process, could be successfully applied to digester liquor of biogas plant at a nitrogen loading rate of 3.0 kg-N/m(3)/d. The nitritation process produced an effluent with a NO(2)-N/NH(4)-N ratio between 1.0 and 1.4, which was found to be suitable for the subsequent anammox process. A high SS concentration (2000-3000 mg/l) in the digester liquor did not affect partial nitritation treatment performances. Effluent from this partial nitritation reactor was successfully treated in the anammox reactor using anammox sludge entrapped in the PEG gel carrier with T-N removal rates of greater than 4.0 kg-N/m(3)/d. Influent BOD and SS contents did not inhibit anammox activity of the anammox gel carrier. The combination of partial nitritation and anammox reactors using PEG entrapped nitrifying and anammox bacteria was shown to be effective for the removal of high concentration ammonium in the digester liquor of a biogas plant.
- Subjects :
- Biochemical oxygen demand
Time Factors
Environmental Engineering
Nitrogen
Bioengineering
Waste Disposal, Fluid
Bioreactors
Biogas
PEG ratio
Bioreactor
Anaerobiosis
Nitrogen Compounds
Waste Management and Disposal
Effluent
Chromatography
Renewable Energy, Sustainability and the Environment
Chemistry
technology, industry, and agriculture
General Medicine
Quaternary Ammonium Compounds
Waste treatment
Biodegradation, Environmental
Activated sludge
Anammox
Gels
Oxidation-Reduction
Subjects
Details
- ISSN :
- 09608524
- Volume :
- 100
- Database :
- OpenAIRE
- Journal :
- Bioresource Technology
- Accession number :
- edsair.doi.dedup.....37bd398bdcff513d0dc9d9131ba5ec7f