N2O production in a single stage nitritation/anammox MBBR process

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Vattenförsörjnings- och Avloppsteknik Institutionen för Kemiteknik Lunds Universitet Water and Environmental Engineering Department of Chemical Engineering Lund University, Sweden N 2 O production in a single stage nitritation/anammox MBBR process Master Thesis number: 2010-01 by Sara Ekström Water and Environmental Engineering Department of Chemical Engineering March 2007 Supervisors: Professor Jes la Cour Jansen Doctor Magnus Christensson, AnoxKaldnes Examiner: Associate professor Karin Jönsson Picture on front page: 1 1. K1 carriers with anammox biofilm from the laboratory nitritation/anammox MBBR. Postal address: Visiting address: Telephone: P.O Box 124 Getingevägen 60 +46 46-222 82 85 SE-221 00 Lund. +46 46-222 00 00 Sweden, Telefax: +46 46-222 45 26 Web address: www.vateknik.lth.se
Page 1: Water and Environmental Engineering
Page 6 and 7: The main objective with this master
Page 9: Glossary Aerobic - in the presence
Page 12 and 13: 3.3.2 Prolonged study, intermittent
Page 14 and 15: stricter it might lead to elevated
Page 16 and 17: For simplicity a synthetic wastewat
Page 18 and 19: NH 1.5O NO 2H 2H O (2.1.
Page 20 and 21: Figure 2. Illustration of anammox b
Page 22 and 23: Denitrification produces alkalinity
Page 24 and 25: aeration takes place through self d
Page 26 and 27: to the liquid film, diffusion of su
Page 28 and 29: age equal to the hydraulic retentio
Page 30 and 31: 2.5.4 Deamox Deamox (denitrifying a
Page 32 and 33: found that when the added quantitie
Page 34 and 35: 2.6 Microsensors Microsensors measu
Page 36 and 37: Figure 9 A) Nitrite biosensor with
Page 38 and 39: 3.2 Reactor medium The reactor was
Page 40 and 41: in one cycle ( 0, 36 and 66 minutes
Page 42 and 43: 3.5 Diffusivity tests of N2O The di
Page 44 and 45: 10 8 DO concentration, pH & tempera
Page 46 and 47: made the increase in N2O accumulati
Page 48 and 49: close to 0 mg/l. The N2O concentrat
Page 50 and 51: Table 12. Average N 2O concentratio
Page 52 and 53:
4.4 NO2-N biosensor The biosensor w
Page 54 and 55:
N₂O µmol/l 12 10 8 6 4 2 0 0 100
Page 56 and 57:
Chapter 5 5. Discussion 5.1 Process
Page 58 and 59:
% produced N₂O 12 10 8 6 4 2 Prod
Page 60:
electrical potential than the senso
Page 65:
7. Future research Better understan
Page 68 and 69:
Egli K., Fanger U., Alvarez P. J.,
Page 70 and 71:
Kalyuzhnyi S., Gladchenko M., Mulde
Page 72 and 73:
Szatkowska B., Plaza E., Trela J.,
Page 75:
Appendix A Calculation of concentra
Page 80 and 81:
With the considerations; (i) that t
Page 82 and 83:
Table B2. Calculation parameters us
Page 84 and 85:
12 090925 Intermittent aeration, DO
Page 86 and 87:
12 091010 Continously operation, DO
Page 89 and 90:
Appendix D Nitrogen grab samples 09
Page 91 and 92:
090925 NH₄-N 090925 Prolonged una
Page 93 and 94:
NH₄-N (mg/l) 300 250 200 150 100
Page 95 and 96:
300 091014 NH₄-N 30 091014 NO₃-
Page 97 and 98:
NOx-N (mg/l) 12 10 8 6 4 2 0 091016
Page 99 and 100:
Appendix E Scientific Article N2O p
Page 101 and 102:
Cycle studies To examine what opera
Page 103 and 104:
12 10 4.5 3.75 N₂O (µmol/l) 8 6
Page 105 and 106:
Acknowledgements The experiments we
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N2O production in a single stage nitritation/anammox MBBR process

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