Kinetics, diffusional limitation and microscale distribution of chemistry and organisms in a CANON reactor
Open Access
- 1 January 2005
- journal article
- Published by Oxford University Press (OUP) in FEMS Microbiology Ecology
- Vol. 51 (2), 247-256
- https://doi.org/10.1016/j.femsec.2004.09.003
Abstract
In the Completely Autotrophic Nitrogen removal Over Nitrite (CANON) process, aerobic and anaerobic ammonia oxidizing bacteria cooperate to remove ammonia in one oxygen-limited reactor. Kinetic studies, microsensor analysis, and fluorescence in situ hybridization on CANON biomass showed a partial differentiation of processes and organisms within and among aggregates. Under normal oxygen-limited conditions (∼5 μM O2), aerobic ammonia oxidation (nitrification) was restricted to an outer shell (500 μm) accounted for 68% of the anammox potential whereas 65% of the nitrification potential was found in the smaller aggregates (2 microsensors showed that the thickness of the activity zones varied as a function of bulk O2 and NO−2 concentrations and flow rate.Keywords
This publication has 29 references indexed in Scilit:
- Candidatus “Scalindua brodae”, sp. nov., Candidatus “Scalindua wagneri”, sp. nov., Two New Species of Anaerobic Ammonium Oxidizing BacteriaSystematic and Applied Microbiology, 2003
- Characterization of an Autotrophic Nitrogen-Removing Biofilm from a Highly Loaded Lab-Scale Rotating Biological ContactorApplied and Environmental Microbiology, 2003
- N2 production by the anammox reaction in the anoxic water column of Golfo Dulce, Costa RicaNature, 2003
- Anaerobic ammonium oxidation by anammox bacteria in the Black SeaNature, 2003
- Production of N2through Anaerobic Ammonium Oxidation Coupled to Nitrate Reduction in Marine SedimentsApplied and Environmental Microbiology, 2002
- Microbiology and application of the anaerobic ammonium oxidation (‘anammox’) processCurrent Opinion in Biotechnology, 2001
- Molecular Evidence for Genus Level Diversity of Bacteria Capable of Catalyzing Anaerobic Ammonium OxidationSystematic and Applied Microbiology, 2000
- Missing lithotroph identified as new planctomyceteNature, 1999
- Towards a more sustainable municipal wastewater treatment systemWater Science & Technology, 1997
- Anaerobic ammonium oxidation discovered in a denitrifying fluidized bed reactorFEMS Microbiology Ecology, 1995