1- Tchobanoglous, G., Franklin, L., Butron, H., and David Stensel, H. (2003). Wastewater engineering: Treatment and reuse, Metcalf and Eddy, Inc., McGraw-Hill, New York.
2- Chan, T. Y. (2003 ). “Ammonia removal in wastewater with anaerobic ammonium oxidation process.” M.Sc. Thesis, Concordia University, Canada.
3- EPA. (1993 ). Process design manual for nitrogen control, US EPA, Washington, D.C.
4- Teichgraber, B., and Stein, A. (1994 ). “Nitrogen elimination from sludge treatment reject water comparison of the steam stripping and denitrification processes.” Water Sci. Technol., 30, 41-51.
5- Peng, Y., and Zhu, G. (2006). “Biological nitrogen removal with nitrification and denitrification via nitrite pathway.” Appl. Microbiol Biotechnol., 73 (1), 15-26.
6- Paredes, D., Kuschk, P., Mbwette, T. S. A., Stange, F., Müller, R. A., and Köser, H. (2007). “New aspects of microbial nitrogen transformations in the context of wastewater treatment - A review.” Eng. Life Sci., 7,
13-25.
7- Hiatt, W. C. (2006). “Activated sludge modeling for elevated nitrogen conditions.” Ph.D. Thesis, Clemson University,United States.
8- Pambrun, V., Paul, E., and Sp´erandio, M. (2008). “Control and modeling of partial nitrification of effluents with high ammonia concentrations in sequencing batch reactor.” Chemical Engineering and Processing, 47, 323-329.
9- Guo, X., Kim, J. H., Behera, S. K., and Park, H. S. (2008). “Influence of dissolved oxygen concentration and aeration time on nitrite accumulation in partial nitrification process.” Int. J. of Environ. Sci. Tech., 5,
527-534.
10- Szatkowska, B. (2007). “Performance and control of biofilm systems with partial nitrification and anammox for supernatant treatment.” Ph.D. Thesis, KTH University, Stockholm.
11- EPA.(2007). Wastewater technology fact sheet: Side stream nutrient removal, Office of Water, US EPA.
12- Kos, P. (1997). Method and system for improved biological nitrification of wastewater at low temperature, US patent No: 5811009.
13- Kos, P. (1998). “Short SRT (solids retention time) nitrification process/flowsheet.” Water Science and Technology, 38, 23-29.
14- Bailey, J., Walter, F., Murthy, S. N., Benson, L., Constantine, T., Daigger, G. T., Sadick, T. E., and Katehis, D. (2008). Method for nitrogen removal and treatment of digester reject water in wastewater using bioaugmentation, US patent No: 7404897B2.
15- Sinha, B., and Annachhatre, A. P. (2007). “Partial nitrification-operational parameters and microorganisms involved.” Rev. Environ. Sci Biotechnol, 6, 285-313.
16- So-Hyun, J., Dong-Jin, K., Ik-Keun, Y., Kyungmoon, P., and Gi-Cheol, C. (2000). “Partial nitrification in an upflow biological aerated filter by O2 limitation.” Biotechnology Letters, 22, 937-940.
17- Ciudad, G., Rubilar, O., Mun˜oz, P., Ruiz, G., Chamy, R., Vergara, C., and Jeison, D. (2005). “Partial nitrification of high ammonia concentration wastewater as a part of a shortcut biological nitrogen removal process.” Process Biochemistry, 40, 1715-1719.
18- Ciudad, G., Gonza´lez, R., Bornhardt, C., and Antileo, C. (2007). “Modes of operation and pH control as enhancement factors for partial nitrification with oxygen transport limitation.” Water Research, 41,
4621-4629.
19- Dosta, J., Galı´, A., Benabdallah El-Hadj, T., Mace´, S., and Mata-A´lvarez, J. (2007). “Operation and model description of a sequencing batch reactor treating reject water for biological nitrogen removal via nitrite.” Bioresource Technology, 98, 2065-2075.
20- Gali, A., Dosta, J., and Mata-Alvarez, J. (2007). “Optimisation of nitrification-denitrification Process in a SBR for the treatment of reject water via nitrite.” Environmental Technology, 28, 565 - 571.
21- Yoo, H., Ahn, K. H., Lee, H. J., Lee, K. H., Kwak, Y. J., and Song, K. G. (1999). “Nitrogen removal from synthetic wastewater by simultaneous nitrification and denitrification (SND) via nitrite in an intermittently aerated reactor.” Wat. Res., 33, 145-154.
22- Sinha, B., and Annachhatre, A. P. (2007). “Assessment of partial nitrification reactor performance through microbial population shift using quinone profile, FISH and SEM.” Bioresource Technology, 98, 3602-3610.
23- APHA. (2005). Standard methods for the examination of water and wastewater, 21st Ed., American Public Health Association, Washington, D.C.
24- HACH. (2008). Water analysis handbook, Loveland Co., United State.
25- Ghanavati, H., and Emtiazi, G. (2007). “Inhibitory effect of phenol on ammonia removal by nitrification of high ammonia and phenol contaminated coke wastewater from Isfahan steel company (ISCO).” J. of Water and Wastewater, 61, 43-52. (In Persian)
26- Van de graaf, A. A. (1997). “Biological anaerobic ammonium oxidation.” Ph.D. Thesis, Delft University Press, The Netherlands.
27- Morling, S. (2009). “SBR-Technology-use and potential applications for treatment of cold wastewater.” Ph.D. Thesis, KTH University, Stockholm.
28- Head, M. A., and Oleszkiewicz, J. A. (2005). “Bioaugmentation with Nitrifying bacteria acclimated to different temperatures.” J. of Environmental Engineering, 131, 1046-1051.
29- Bina, B., Movahedian, H., and Pourzamani, H.R. (2005).“Effect of influent COD/N ratio on nitrification rate in a bench-scale biological reactor.” J. of Water and Wastewater, 53, 30-37. (In Persian)
30- Weon, S. Y., Lee, S. I., and Koopman, B. (2004). “Effect of temperature and dissolved oxygen on biological nitrification at high ammonia concentrations. ” Environ. Technol., 25, 1211-1219.
)