N2O production in a single stage nitritation/anammox MBBR process

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Mulder A.V.A, Robertson L.A., Kuenen J.G.,(1995). Anaerobic ammonium oxidation discovered in a denitrifying fluidized-bed reactor. FEMS Microbiology Ecology 16, (3), 177-184. Siegrist H., Reithaar S., Koch G., and Lais P., (1998). Nitrogen loss in a nitrifying rotating contactor treating ammonium rich wastewater without organic carbon. Water Science and Technology, 38, (8-9), 241-248. Strous M., van Gerven E., Zheng P., Kuenen J.G., and Jetten M.S.M., (1997). Ammonium removal from concentrated waste streams with the anaerobic ammonium oxidation (anammox) process in different reactor configurations. Water Research, 31, (8), 1955- 1962. Strous M., Heijnen J., Kuenen J., Jetten M., (1998). The sequencing batch reactor as a powerful tool for the study of slowly growing anaerobic ammonium-oxidizing microorganisms. Applied Microbiology Biotechnology, 50, 589-596. 94
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Water and Environmental Engineering
Page 5 and 6:
Summary Wastewaters contain abundan
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Acknowledgements I would like to ex
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Table of content Chapter 1 ........
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Chapter 1 1. Introduction Nitrogen
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1.3 Objectives The aim with this ma
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Chapter 2 2. Background 2.1 Biologi
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are intermediates in the chemical r
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minimum concentration of 2 mg/l sho
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2.3 Biofilm reactors Biofilm reacto
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2.3.4 Moving bed reactor Another wa
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To enable efficient nutrient remova
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The Canon process is often implemen
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2.5.1 Nitrification as a source of
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Table 3. N 2O emission from differe
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The microsensor is connected to a p
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Chapter 3 3. Material and Methods 3
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3.3 Analytical methods Concentratio
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Figure 11. Calibration setup for mi
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Chapter 4 4. Results 4.1 Process pe
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10 8 DO concentration, pH & tempera
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concentration), while the maximum p
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of N2O during aeration was slightly
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Table 13. Average N 2O concentratio
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12 NO₂-N (mg/l) 10 8 6 4 2 NO₂-
Page 55 and 56: Aeration 1.6 (l/min) with carriers
Page 57 and 58: % produced N₂O 12 10 8 6 4 2 Prod
Page 59 and 60: laboratory system might be underest
Page 63: 6. Conclusions The following conclu
Page 67 and 68: 8. References Abma W.R., Schultz C.
Page 69 and 70: Hippen A., Rosenwinkel K-H., Baumga
Page 71 and 72: Metcalf & Eddy I. (2003). Wastewate
Page 73: van Niftrik L.A., Fuerst J.A., Sinn
Page 79 and 80: Appendix B Calculations of N2O emis
Page 81 and 82: The rN value is calculated with the
Page 83 and 84: Appendix C Microsensor measurements
Page 85 and 86: 12 090927 Prolonged unaerated perio
Page 87: 12 091016 Continuously operation, D
Page 90 and 91: 350 090921 NH₄-N 350 090922 NH₄
Page 92 and 93: 300 090926 Prolonged unaerated peri
Page 94 and 95: 091010 NOx-N 091013 NOx-N NOx-N (mg
Page 96 and 97: 35 091015 NO₃-N 70 091016 NOx-N 3
Page 98 and 99: 350 091018 NH₄-N 35 091018NO₃-N
Page 100 and 101: The bacteria performing the microbi
Page 102 and 103: Typical profiles of how N2O and DO
Page 104 and 105: 12 10 091014 Continously operation,
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N2O production in a single stage nitritation/anammox MBBR process

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